If this is your first visit, be sure to check out the FAQ by clicking the link above. You may have to register before you can post: click the register link above to proceed. To start viewing messages, select the forum that you want to visit from the selection below. |
|
|
Thread Tools | Display Modes |
#11
|
|||
|
|||
2004 Jeep Liberty
On Wednesday, May 24, 2017 at 12:55:21 PM UTC-5, dsi1 wrote:
> On Tuesday, May 23, 2017 at 9:29:30 AM UTC-10, Michael wrote: > > On Thursday, May 11, 2017 at 5:44:58 PM UTC-5, Michael wrote: > > > On Wednesday, May 10, 2017 at 1:12:11 AM UTC-5, Steve W. wrote: > > > > Michael wrote: > > > > > I have a 2004 Jeep Liberty and the engine is misfiring. If it was my > > > > > old 2003 Ford F150, I'd know to change out a coil. Is there something > > > > > similar in the engine of this model Jeep that I can change easily? > > > > > > > > > > Thanks, > > > > > > > > > > Mike > > > > > > > > It uses COP units, coil on plug. Easy to change IF they are the issue. > > > > When was the last time the plugs were changed? These do not use a high > > > > mileage plug, they use a copper plug that needs to be changed every 35K > > > > or they start misfiring, If you install any of the platinum or iridium > > > > plugs they tend to mis-fire as well. > > > > > > > > There is one copper core with platinum tip that works OK but they are > > > > hard to find. > > > > > > > > If you have multiple mis-fires you will want to check the fuel pump > > > > output and make sure you are getting good flow. > > > > -- > > > > Steve W. > > > > > > Thanks, Steve! > > > > > > Mike > > > > So I've changed the plugs and coils, but I'm still getting misfires according to the machine from Autozone. What's the next thing that I should check? > > > > Thanks, > > > > Mike > > If you have not changed the wires, now would be the time. I think I found the problem. When I put the injector cleaner in the car, started it up, and walked away, I heard that clicking noise that says that a rocker arm has fallen. What's the recommendation? Just pop it back in place? Get a new one? Thanks, Mike |
Ads |
#12
|
|||
|
|||
2004 Jeep Liberty
Michael wrote:
> On Tuesday, May 23, 2017 at 8:32:31 PM UTC-5, Steve W. wrote: >> Michael wrote: >>> On Thursday, May 11, 2017 at 5:44:58 PM UTC-5, Michael wrote: >>>> On Wednesday, May 10, 2017 at 1:12:11 AM UTC-5, Steve W. wrote: >>>> >>>>> Michael wrote: >>>>>> I have a 2004 Jeep Liberty and the engine is misfiring. If >>>>>> it was my old 2003 Ford F150, I'd know to change out a >>>>>> coil. Is there something similar in the engine of this >>>>>> model Jeep that I can change easily? >>>>>> >>>>>> Thanks, >>>>>> >>>>>> Mike >>>>> It uses COP units, coil on plug. Easy to change IF they are >>>>> the issue. When was the last time the plugs were changed? >>>>> These do not use a high mileage plug, they use a copper plug >>>>> that needs to be changed every 35K or they start misfiring, >>>>> If you install any of the platinum or iridium plugs they tend >>>>> to mis-fire as well. >>>>> >>>>> There is one copper core with platinum tip that works OK but >>>>> they are hard to find. >>>>> >>>>> If you have multiple mis-fires you will want to check the >>>>> fuel pump output and make sure you are getting good flow. -- >>>>> Steve W. >>>> Thanks, Steve! >>>> >>>> Mike >>> So I've changed the plugs and coils, but I'm still getting >>> misfires according to the machine from Autozone. What's the next >>> thing that I should check? >>> >>> Thanks, >>> >>> Mike >> What were the codes that came up? Any strange noises or other >> problems like lower gas mileage, running hotter than normal, smell >> of fuel? >> >> -- Steve W. > > Hi Steve, > > Code P0306 indicates that Cylinder 6 has too many misfires within a > predetermined period of time. > > PO306 Cylinder 1-10 Misfire Detected P0300 P0302 P0303 P0304 > > Any thoughts would be greatly appreciated. I read where it could be a > bad ASD relay too, but I couldn't find one on this car. I'm going to > try the fuel injector cleaner. I may try replacing the fuel injectors > at some point. > > Thanks, > > Mike Check the running fuel pressure. That's a returnless system and the pumps do get weak. I see where you hear a click from a possible rocker arm. That could account for one cylinder but it wouldn't cause the random miss or 3 and 4 misses. I would start with a fuel pressure test, then do a top cylinder cleaning as the 3.7 is prone to carbon build up. -- Steve W. |
#13
|
|||
|
|||
2004 Jeep Liberty
On Wednesday, May 24, 2017 at 8:24:16 PM UTC-5, Steve W. wrote:
> Michael wrote: > > On Tuesday, May 23, 2017 at 8:32:31 PM UTC-5, Steve W. wrote: > >> Michael wrote: > >>> On Thursday, May 11, 2017 at 5:44:58 PM UTC-5, Michael wrote: > >>>> On Wednesday, May 10, 2017 at 1:12:11 AM UTC-5, Steve W. wrote: > >>>> > >>>>> Michael wrote: > >>>>>> I have a 2004 Jeep Liberty and the engine is misfiring. If > >>>>>> it was my old 2003 Ford F150, I'd know to change out a > >>>>>> coil. Is there something similar in the engine of this > >>>>>> model Jeep that I can change easily? > >>>>>> > >>>>>> Thanks, > >>>>>> > >>>>>> Mike > >>>>> It uses COP units, coil on plug. Easy to change IF they are > >>>>> the issue. When was the last time the plugs were changed? > >>>>> These do not use a high mileage plug, they use a copper plug > >>>>> that needs to be changed every 35K or they start misfiring, > >>>>> If you install any of the platinum or iridium plugs they tend > >>>>> to mis-fire as well. > >>>>> > >>>>> There is one copper core with platinum tip that works OK but > >>>>> they are hard to find. > >>>>> > >>>>> If you have multiple mis-fires you will want to check the > >>>>> fuel pump output and make sure you are getting good flow. -- > >>>>> Steve W. > >>>> Thanks, Steve! > >>>> > >>>> Mike > >>> So I've changed the plugs and coils, but I'm still getting > >>> misfires according to the machine from Autozone. What's the next > >>> thing that I should check? > >>> > >>> Thanks, > >>> > >>> Mike > >> What were the codes that came up? Any strange noises or other > >> problems like lower gas mileage, running hotter than normal, smell > >> of fuel? > >> > >> -- Steve W. > > > > Hi Steve, > > > > Code P0306 indicates that Cylinder 6 has too many misfires within a > > predetermined period of time. > > > > PO306 Cylinder 1-10 Misfire Detected P0300 P0302 P0303 P0304 > > > > Any thoughts would be greatly appreciated. I read where it could be a > > bad ASD relay too, but I couldn't find one on this car. I'm going to > > try the fuel injector cleaner. I may try replacing the fuel injectors > > at some point. > > > > Thanks, > > > > Mike > > Check the running fuel pressure. That's a returnless system and the > pumps do get weak. I see where you hear a click from a possible rocker > arm. That could account for one cylinder but it wouldn't cause the > random miss or 3 and 4 misses. > > I would start with a fuel pressure test, then do a top cylinder cleaning > as the 3.7 is prone to carbon build up. > > -- > Steve W. Thanks, Steve. Much appreciated! Here is a video that demonstrates the sound that my Jeep is making. It could well be that it has more than one problem. https://www.youtube.com/watch?v=aZU0OzhsgyQ (2:49) Mike |
#14
|
|||
|
|||
2004 Jeep Liberty
Michael wrote:
> On Wednesday, May 24, 2017 at 8:24:16 PM UTC-5, Steve W. wrote: >> Michael wrote: >>> On Tuesday, May 23, 2017 at 8:32:31 PM UTC-5, Steve W. wrote: >>>> Michael wrote: >>>>> On Thursday, May 11, 2017 at 5:44:58 PM UTC-5, Michael wrote: >>>>> >>>>>> On Wednesday, May 10, 2017 at 1:12:11 AM UTC-5, Steve W. >>>>>> wrote: >>>>>> >>>>>>> Michael wrote: >>>>>>>> I have a 2004 Jeep Liberty and the engine is misfiring. >>>>>>>> If it was my old 2003 Ford F150, I'd know to change out >>>>>>>> a coil. Is there something similar in the engine of >>>>>>>> this model Jeep that I can change easily? >>>>>>>> >>>>>>>> Thanks, >>>>>>>> >>>>>>>> Mike >>>>>>> It uses COP units, coil on plug. Easy to change IF they >>>>>>> are the issue. When was the last time the plugs were >>>>>>> changed? These do not use a high mileage plug, they use a >>>>>>> copper plug that needs to be changed every 35K or they >>>>>>> start misfiring, If you install any of the platinum or >>>>>>> iridium plugs they tend to mis-fire as well. >>>>>>> >>>>>>> There is one copper core with platinum tip that works OK >>>>>>> but they are hard to find. >>>>>>> >>>>>>> If you have multiple mis-fires you will want to check the >>>>>>> fuel pump output and make sure you are getting good >>>>>>> flow. -- Steve W. >>>>>> Thanks, Steve! >>>>>> >>>>>> Mike >>>>> So I've changed the plugs and coils, but I'm still getting >>>>> misfires according to the machine from Autozone. What's the >>>>> next thing that I should check? >>>>> >>>>> Thanks, >>>>> >>>>> Mike >>>> What were the codes that came up? Any strange noises or other >>>> problems like lower gas mileage, running hotter than normal, >>>> smell of fuel? >>>> >>>> -- Steve W. >>> Hi Steve, >>> >>> Code P0306 indicates that Cylinder 6 has too many misfires within >>> a predetermined period of time. >>> >>> PO306 Cylinder 1-10 Misfire Detected P0300 P0302 P0303 P0304 >>> >>> Any thoughts would be greatly appreciated. I read where it could >>> be a bad ASD relay too, but I couldn't find one on this car. I'm >>> going to try the fuel injector cleaner. I may try replacing the >>> fuel injectors at some point. >>> >>> Thanks, >>> >>> Mike >> Check the running fuel pressure. That's a returnless system and the >> pumps do get weak. I see where you hear a click from a possible >> rocker arm. That could account for one cylinder but it wouldn't >> cause the random miss or 3 and 4 misses. >> >> I would start with a fuel pressure test, then do a top cylinder >> cleaning as the 3.7 is prone to carbon build up. >> >> -- Steve W. > > Thanks, Steve. Much appreciated! > > Here is a video that demonstrates the sound that my Jeep is making. > It could well be that it has more than one problem. > > https://www.youtube.com/watch?v=aZU0OzhsgyQ (2:49) > > Mike It's very possible it's tossed a rocker arm. I would start with the easy stuff first. Then pop the valve cover off and take a look if they don't improve the issue. Broken valve spring or fallen rockers are easy to spot. -- Steve W. |
#15
|
|||
|
|||
2004 Jeep Liberty
On Thursday, May 25, 2017 at 7:33:57 AM UTC-5, Steve W. wrote:
> Michael wrote: > > On Wednesday, May 24, 2017 at 8:24:16 PM UTC-5, Steve W. wrote: > >> Michael wrote: > >>> On Tuesday, May 23, 2017 at 8:32:31 PM UTC-5, Steve W. wrote: > >>>> Michael wrote: > >>>>> On Thursday, May 11, 2017 at 5:44:58 PM UTC-5, Michael wrote: > >>>>> > >>>>>> On Wednesday, May 10, 2017 at 1:12:11 AM UTC-5, Steve W. > >>>>>> wrote: > >>>>>> > >>>>>>> Michael wrote: > >>>>>>>> I have a 2004 Jeep Liberty and the engine is misfiring. > >>>>>>>> If it was my old 2003 Ford F150, I'd know to change out > >>>>>>>> a coil. Is there something similar in the engine of > >>>>>>>> this model Jeep that I can change easily? > >>>>>>>> > >>>>>>>> Thanks, > >>>>>>>> > >>>>>>>> Mike > >>>>>>> It uses COP units, coil on plug. Easy to change IF they > >>>>>>> are the issue. When was the last time the plugs were > >>>>>>> changed? These do not use a high mileage plug, they use a > >>>>>>> copper plug that needs to be changed every 35K or they > >>>>>>> start misfiring, If you install any of the platinum or > >>>>>>> iridium plugs they tend to mis-fire as well. > >>>>>>> > >>>>>>> There is one copper core with platinum tip that works OK > >>>>>>> but they are hard to find. > >>>>>>> > >>>>>>> If you have multiple mis-fires you will want to check the > >>>>>>> fuel pump output and make sure you are getting good > >>>>>>> flow. -- Steve W. > >>>>>> Thanks, Steve! > >>>>>> > >>>>>> Mike > >>>>> So I've changed the plugs and coils, but I'm still getting > >>>>> misfires according to the machine from Autozone. What's the > >>>>> next thing that I should check? > >>>>> > >>>>> Thanks, > >>>>> > >>>>> Mike > >>>> What were the codes that came up? Any strange noises or other > >>>> problems like lower gas mileage, running hotter than normal, > >>>> smell of fuel? > >>>> > >>>> -- Steve W. > >>> Hi Steve, > >>> > >>> Code P0306 indicates that Cylinder 6 has too many misfires within > >>> a predetermined period of time. > >>> > >>> PO306 Cylinder 1-10 Misfire Detected P0300 P0302 P0303 P0304 > >>> > >>> Any thoughts would be greatly appreciated. I read where it could > >>> be a bad ASD relay too, but I couldn't find one on this car. I'm > >>> going to try the fuel injector cleaner. I may try replacing the > >>> fuel injectors at some point. > >>> > >>> Thanks, > >>> > >>> Mike > >> Check the running fuel pressure. That's a returnless system and the > >> pumps do get weak. I see where you hear a click from a possible > >> rocker arm. That could account for one cylinder but it wouldn't > >> cause the random miss or 3 and 4 misses. > >> > >> I would start with a fuel pressure test, then do a top cylinder > >> cleaning as the 3.7 is prone to carbon build up. > >> > >> -- Steve W. > > > > Thanks, Steve. Much appreciated! > > > > Here is a video that demonstrates the sound that my Jeep is making. > > It could well be that it has more than one problem. > > > > https://www.youtube.com/watch?v=aZU0OzhsgyQ (2:49) > > > > Mike > > It's very possible it's tossed a rocker arm. I would start with the easy > stuff first. Then pop the valve cover off and take a look if they don't > improve the issue. Broken valve spring or fallen rockers are easy to spot. > > -- > Steve W. Steve, I took the valve covers off. As it turns out, it wasn't a fallen rocker arm. It was TWO fallen rocker arms on the passenger's side. The lifters are frozen solid, so I'll replace those and hope it runs for a while. Mike |
#16
|
|||
|
|||
2004 Jeep Liberty
On Thursday, May 25, 2017 at 7:48:41 PM UTC-5, Michael wrote:
> On Thursday, May 25, 2017 at 7:33:57 AM UTC-5, Steve W. wrote: > > Michael wrote: > > > On Wednesday, May 24, 2017 at 8:24:16 PM UTC-5, Steve W. wrote: > > >> Michael wrote: > > >>> On Tuesday, May 23, 2017 at 8:32:31 PM UTC-5, Steve W. wrote: > > >>>> Michael wrote: > > >>>>> On Thursday, May 11, 2017 at 5:44:58 PM UTC-5, Michael wrote: > > >>>>> > > >>>>>> On Wednesday, May 10, 2017 at 1:12:11 AM UTC-5, Steve W. > > >>>>>> wrote: > > >>>>>> > > >>>>>>> Michael wrote: > > >>>>>>>> I have a 2004 Jeep Liberty and the engine is misfiring. > > >>>>>>>> If it was my old 2003 Ford F150, I'd know to change out > > >>>>>>>> a coil. Is there something similar in the engine of > > >>>>>>>> this model Jeep that I can change easily? > > >>>>>>>> > > >>>>>>>> Thanks, > > >>>>>>>> > > >>>>>>>> Mike > > >>>>>>> It uses COP units, coil on plug. Easy to change IF they > > >>>>>>> are the issue. When was the last time the plugs were > > >>>>>>> changed? These do not use a high mileage plug, they use a > > >>>>>>> copper plug that needs to be changed every 35K or they > > >>>>>>> start misfiring, If you install any of the platinum or > > >>>>>>> iridium plugs they tend to mis-fire as well. > > >>>>>>> > > >>>>>>> There is one copper core with platinum tip that works OK > > >>>>>>> but they are hard to find. > > >>>>>>> > > >>>>>>> If you have multiple mis-fires you will want to check the > > >>>>>>> fuel pump output and make sure you are getting good > > >>>>>>> flow. -- Steve W. > > >>>>>> Thanks, Steve! > > >>>>>> > > >>>>>> Mike > > >>>>> So I've changed the plugs and coils, but I'm still getting > > >>>>> misfires according to the machine from Autozone. What's the > > >>>>> next thing that I should check? > > >>>>> > > >>>>> Thanks, > > >>>>> > > >>>>> Mike > > >>>> What were the codes that came up? Any strange noises or other > > >>>> problems like lower gas mileage, running hotter than normal, > > >>>> smell of fuel? > > >>>> > > >>>> -- Steve W. > > >>> Hi Steve, > > >>> > > >>> Code P0306 indicates that Cylinder 6 has too many misfires within > > >>> a predetermined period of time. > > >>> > > >>> PO306 Cylinder 1-10 Misfire Detected P0300 P0302 P0303 P0304 > > >>> > > >>> Any thoughts would be greatly appreciated. I read where it could > > >>> be a bad ASD relay too, but I couldn't find one on this car. I'm > > >>> going to try the fuel injector cleaner. I may try replacing the > > >>> fuel injectors at some point. > > >>> > > >>> Thanks, > > >>> > > >>> Mike > > >> Check the running fuel pressure. That's a returnless system and the > > >> pumps do get weak. I see where you hear a click from a possible > > >> rocker arm. That could account for one cylinder but it wouldn't > > >> cause the random miss or 3 and 4 misses. > > >> > > >> I would start with a fuel pressure test, then do a top cylinder > > >> cleaning as the 3.7 is prone to carbon build up. > > >> > > >> -- Steve W. > > > > > > Thanks, Steve. Much appreciated! > > > > > > Here is a video that demonstrates the sound that my Jeep is making. > > > It could well be that it has more than one problem. > > > > > > https://www.youtube.com/watch?v=aZU0OzhsgyQ (2:49) > > > > > > Mike > > > > It's very possible it's tossed a rocker arm. I would start with the easy > > stuff first. Then pop the valve cover off and take a look if they don't > > improve the issue. Broken valve spring or fallen rockers are easy to spot. > > > > -- > > Steve W. > > Steve, > > I took the valve covers off. As it turns out, it wasn't a fallen rocker arm. It was TWO fallen rocker arms on the passenger's side. The lifters are frozen solid, so I'll replace those and hope it runs for a while. > > Mike Hi all, The cam lobe is on the low side where I want to install two rocker arms. What's the best way of getting the cam lobe on the high side so I can pop in the rocker arms? Thanks, Mike |
#17
|
|||
|
|||
2004 Jeep Liberty
On 5/25/17 9:49 PM, Michael wrote:
> On Thursday, May 25, 2017 at 7:48:41 PM UTC-5, Michael wrote: >> On Thursday, May 25, 2017 at 7:33:57 AM UTC-5, Steve W. wrote: >>> Michael wrote: >>>> On Wednesday, May 24, 2017 at 8:24:16 PM UTC-5, Steve W. wrote: >>>>> Michael wrote: >>>>>> On Tuesday, May 23, 2017 at 8:32:31 PM UTC-5, Steve W. wrote: >>>>>>> Michael wrote: >>>>>>>> On Thursday, May 11, 2017 at 5:44:58 PM UTC-5, Michael wrote: >>>>>>>> >>>>>>>>> On Wednesday, May 10, 2017 at 1:12:11 AM UTC-5, Steve W. >>>>>>>>> wrote: >>>>>>>>> >>>>>>>>>> Michael wrote: >>>>>>>>>>> I have a 2004 Jeep Liberty and the engine is misfiring. >>>>>>>>>>> If it was my old 2003 Ford F150, I'd know to change out >>>>>>>>>>> a coil. Is there something similar in the engine of >>>>>>>>>>> this model Jeep that I can change easily? >>>>>>>>>>> >>>>>>>>>>> Thanks, >>>>>>>>>>> >>>>>>>>>>> Mike >>>>>>>>>> It uses COP units, coil on plug. Easy to change IF they >>>>>>>>>> are the issue. When was the last time the plugs were >>>>>>>>>> changed? These do not use a high mileage plug, they use a >>>>>>>>>> copper plug that needs to be changed every 35K or they >>>>>>>>>> start misfiring, If you install any of the platinum or >>>>>>>>>> iridium plugs they tend to mis-fire as well. >>>>>>>>>> >>>>>>>>>> There is one copper core with platinum tip that works OK >>>>>>>>>> but they are hard to find. >>>>>>>>>> >>>>>>>>>> If you have multiple mis-fires you will want to check the >>>>>>>>>> fuel pump output and make sure you are getting good >>>>>>>>>> flow. -- Steve W. >>>>>>>>> Thanks, Steve! >>>>>>>>> >>>>>>>>> Mike >>>>>>>> So I've changed the plugs and coils, but I'm still getting >>>>>>>> misfires according to the machine from Autozone. What's the >>>>>>>> next thing that I should check? >>>>>>>> >>>>>>>> Thanks, >>>>>>>> >>>>>>>> Mike >>>>>>> What were the codes that came up? Any strange noises or other >>>>>>> problems like lower gas mileage, running hotter than normal, >>>>>>> smell of fuel? >>>>>>> >>>>>>> -- Steve W. >>>>>> Hi Steve, >>>>>> >>>>>> Code P0306 indicates that Cylinder 6 has too many misfires within >>>>>> a predetermined period of time. >>>>>> >>>>>> PO306 Cylinder 1-10 Misfire Detected P0300 P0302 P0303 P0304 >>>>>> >>>>>> Any thoughts would be greatly appreciated. I read where it could >>>>>> be a bad ASD relay too, but I couldn't find one on this car. I'm >>>>>> going to try the fuel injector cleaner. I may try replacing the >>>>>> fuel injectors at some point. >>>>>> >>>>>> Thanks, >>>>>> >>>>>> Mike >>>>> Check the running fuel pressure. That's a returnless system and the >>>>> pumps do get weak. I see where you hear a click from a possible >>>>> rocker arm. That could account for one cylinder but it wouldn't >>>>> cause the random miss or 3 and 4 misses. >>>>> >>>>> I would start with a fuel pressure test, then do a top cylinder >>>>> cleaning as the 3.7 is prone to carbon build up. >>>>> >>>>> -- Steve W. >>>> >>>> Thanks, Steve. Much appreciated! >>>> >>>> Here is a video that demonstrates the sound that my Jeep is making. >>>> It could well be that it has more than one problem. >>>> >>>> https://www.youtube.com/watch?v=aZU0OzhsgyQ (2:49) >>>> >>>> Mike >>> >>> It's very possible it's tossed a rocker arm. I would start with the easy >>> stuff first. Then pop the valve cover off and take a look if they don't >>> improve the issue. Broken valve spring or fallen rockers are easy to spot. >>> >>> -- >>> Steve W. >> >> Steve, >> >> I took the valve covers off. As it turns out, it wasn't a fallen rocker arm. It was TWO fallen rocker arms on the passenger's side. The lifters are frozen solid, so I'll replace those and hope it runs for a while. >> >> Mike > > Hi all, > > The cam lobe is on the low side where I want to install two rocker arms. What's the best way of getting the cam lobe on the high side so I can pop in the rocker arms? > > Thanks, > > Mike > Have you cleaned the "lash adjusters" ? You may want to view this YouTube https://www.youtube.com/watch?v=ksrDE2zjC34 The adjusters seem to be the cause of the "fallen" rockers. Lots of other YT videos re this issue. |
#18
|
|||
|
|||
2004 Jeep Liberty
On 5/25/2017 8:49 PM, Michael wrote:
> On Thursday, May 25, 2017 at 7:48:41 PM UTC-5, Michael wrote: >> On Thursday, May 25, 2017 at 7:33:57 AM UTC-5, Steve W. wrote: >>> Michael wrote: >>>> On Wednesday, May 24, 2017 at 8:24:16 PM UTC-5, Steve W. wrote: >>>>> Michael wrote: >>>>>> On Tuesday, May 23, 2017 at 8:32:31 PM UTC-5, Steve W. wrote: >>>>>>> Michael wrote: >>>>>>>> On Thursday, May 11, 2017 at 5:44:58 PM UTC-5, Michael wrote: >>>>>>>> >>>>>>>>> On Wednesday, May 10, 2017 at 1:12:11 AM UTC-5, Steve W. >>>>>>>>> wrote: >>>>>>>>> >>>>>>>>>> Michael wrote: >>>>>>>>>>> I have a 2004 Jeep Liberty and the engine is misfiring. >>>>>>>>>>> If it was my old 2003 Ford F150, I'd know to change out >>>>>>>>>>> a coil. Is there something similar in the engine of >>>>>>>>>>> this model Jeep that I can change easily? >>>>>>>>>>> >>>>>>>>>>> Thanks, >>>>>>>>>>> >>>>>>>>>>> Mike >>>>>>>>>> It uses COP units, coil on plug. Easy to change IF they >>>>>>>>>> are the issue. When was the last time the plugs were >>>>>>>>>> changed? These do not use a high mileage plug, they use a >>>>>>>>>> copper plug that needs to be changed every 35K or they >>>>>>>>>> start misfiring, If you install any of the platinum or >>>>>>>>>> iridium plugs they tend to mis-fire as well. >>>>>>>>>> >>>>>>>>>> There is one copper core with platinum tip that works OK >>>>>>>>>> but they are hard to find. >>>>>>>>>> >>>>>>>>>> If you have multiple mis-fires you will want to check the >>>>>>>>>> fuel pump output and make sure you are getting good >>>>>>>>>> flow. -- Steve W. >>>>>>>>> Thanks, Steve! >>>>>>>>> >>>>>>>>> Mike >>>>>>>> So I've changed the plugs and coils, but I'm still getting >>>>>>>> misfires according to the machine from Autozone. What's the >>>>>>>> next thing that I should check? >>>>>>>> >>>>>>>> Thanks, >>>>>>>> >>>>>>>> Mike >>>>>>> What were the codes that came up? Any strange noises or other >>>>>>> problems like lower gas mileage, running hotter than normal, >>>>>>> smell of fuel? >>>>>>> >>>>>>> -- Steve W. >>>>>> Hi Steve, >>>>>> >>>>>> Code P0306 indicates that Cylinder 6 has too many misfires within >>>>>> a predetermined period of time. >>>>>> >>>>>> PO306 Cylinder 1-10 Misfire Detected P0300 P0302 P0303 P0304 >>>>>> >>>>>> Any thoughts would be greatly appreciated. I read where it could >>>>>> be a bad ASD relay too, but I couldn't find one on this car. I'm >>>>>> going to try the fuel injector cleaner. I may try replacing the >>>>>> fuel injectors at some point. >>>>>> >>>>>> Thanks, >>>>>> >>>>>> Mike >>>>> Check the running fuel pressure. That's a returnless system and the >>>>> pumps do get weak. I see where you hear a click from a possible >>>>> rocker arm. That could account for one cylinder but it wouldn't >>>>> cause the random miss or 3 and 4 misses. >>>>> >>>>> I would start with a fuel pressure test, then do a top cylinder >>>>> cleaning as the 3.7 is prone to carbon build up. >>>>> >>>>> -- Steve W. >>>> >>>> Thanks, Steve. Much appreciated! >>>> >>>> Here is a video that demonstrates the sound that my Jeep is making. >>>> It could well be that it has more than one problem. >>>> >>>> https://www.youtube.com/watch?v=aZU0OzhsgyQ (2:49) >>>> >>>> Mike >>> >>> It's very possible it's tossed a rocker arm. I would start with the easy >>> stuff first. Then pop the valve cover off and take a look if they don't >>> improve the issue. Broken valve spring or fallen rockers are easy to spot. >>> >>> -- >>> Steve W. >> >> Steve, >> >> I took the valve covers off. As it turns out, it wasn't a fallen rocker arm. It was TWO fallen rocker arms on the passenger's side. The lifters are frozen solid, so I'll replace those and hope it runs for a while. >> >> Mike > > Hi all, > > The cam lobe is on the low side where I want to install two rocker arms. What's the best way of getting the cam lobe on the high side so I can pop in the rocker arms? Turn the engine until the cam's in the valve closed position. (just replaced a bent pushrod last evening). -- Andrew Muzi <www.yellowjersey.org/> Open every day since 1 April, 1971 |
#19
|
|||
|
|||
2004 Jeep Liberty
On Thursday, May 25, 2017 at 9:00:48 PM UTC-5, Retired wrote:
> On 5/25/17 9:49 PM, Michael wrote: > > On Thursday, May 25, 2017 at 7:48:41 PM UTC-5, Michael wrote: > >> On Thursday, May 25, 2017 at 7:33:57 AM UTC-5, Steve W. wrote: > >>> Michael wrote: > >>>> On Wednesday, May 24, 2017 at 8:24:16 PM UTC-5, Steve W. wrote: > >>>>> Michael wrote: > >>>>>> On Tuesday, May 23, 2017 at 8:32:31 PM UTC-5, Steve W. wrote: > >>>>>>> Michael wrote: > >>>>>>>> On Thursday, May 11, 2017 at 5:44:58 PM UTC-5, Michael wrote: > >>>>>>>> > >>>>>>>>> On Wednesday, May 10, 2017 at 1:12:11 AM UTC-5, Steve W. > >>>>>>>>> wrote: > >>>>>>>>> > >>>>>>>>>> Michael wrote: > >>>>>>>>>>> I have a 2004 Jeep Liberty and the engine is misfiring. > >>>>>>>>>>> If it was my old 2003 Ford F150, I'd know to change out > >>>>>>>>>>> a coil. Is there something similar in the engine of > >>>>>>>>>>> this model Jeep that I can change easily? > >>>>>>>>>>> > >>>>>>>>>>> Thanks, > >>>>>>>>>>> > >>>>>>>>>>> Mike > >>>>>>>>>> It uses COP units, coil on plug. Easy to change IF they > >>>>>>>>>> are the issue. When was the last time the plugs were > >>>>>>>>>> changed? These do not use a high mileage plug, they use a > >>>>>>>>>> copper plug that needs to be changed every 35K or they > >>>>>>>>>> start misfiring, If you install any of the platinum or > >>>>>>>>>> iridium plugs they tend to mis-fire as well. > >>>>>>>>>> > >>>>>>>>>> There is one copper core with platinum tip that works OK > >>>>>>>>>> but they are hard to find. > >>>>>>>>>> > >>>>>>>>>> If you have multiple mis-fires you will want to check the > >>>>>>>>>> fuel pump output and make sure you are getting good > >>>>>>>>>> flow. -- Steve W. > >>>>>>>>> Thanks, Steve! > >>>>>>>>> > >>>>>>>>> Mike > >>>>>>>> So I've changed the plugs and coils, but I'm still getting > >>>>>>>> misfires according to the machine from Autozone. What's the > >>>>>>>> next thing that I should check? > >>>>>>>> > >>>>>>>> Thanks, > >>>>>>>> > >>>>>>>> Mike > >>>>>>> What were the codes that came up? Any strange noises or other > >>>>>>> problems like lower gas mileage, running hotter than normal, > >>>>>>> smell of fuel? > >>>>>>> > >>>>>>> -- Steve W. > >>>>>> Hi Steve, > >>>>>> > >>>>>> Code P0306 indicates that Cylinder 6 has too many misfires within > >>>>>> a predetermined period of time. > >>>>>> > >>>>>> PO306 Cylinder 1-10 Misfire Detected P0300 P0302 P0303 P0304 > >>>>>> > >>>>>> Any thoughts would be greatly appreciated. I read where it could > >>>>>> be a bad ASD relay too, but I couldn't find one on this car. I'm > >>>>>> going to try the fuel injector cleaner. I may try replacing the > >>>>>> fuel injectors at some point. > >>>>>> > >>>>>> Thanks, > >>>>>> > >>>>>> Mike > >>>>> Check the running fuel pressure. That's a returnless system and the > >>>>> pumps do get weak. I see where you hear a click from a possible > >>>>> rocker arm. That could account for one cylinder but it wouldn't > >>>>> cause the random miss or 3 and 4 misses. > >>>>> > >>>>> I would start with a fuel pressure test, then do a top cylinder > >>>>> cleaning as the 3.7 is prone to carbon build up. > >>>>> > >>>>> -- Steve W. > >>>> > >>>> Thanks, Steve. Much appreciated! > >>>> > >>>> Here is a video that demonstrates the sound that my Jeep is making. > >>>> It could well be that it has more than one problem. > >>>> > >>>> https://www.youtube.com/watch?v=aZU0OzhsgyQ (2:49) > >>>> > >>>> Mike > >>> > >>> It's very possible it's tossed a rocker arm. I would start with the easy > >>> stuff first. Then pop the valve cover off and take a look if they don't > >>> improve the issue. Broken valve spring or fallen rockers are easy to spot. > >>> > >>> -- > >>> Steve W. > >> > >> Steve, > >> > >> I took the valve covers off. As it turns out, it wasn't a fallen rocker arm. It was TWO fallen rocker arms on the passenger's side. The lifters are frozen solid, so I'll replace those and hope it runs for a while. > >> > >> Mike > > > > Hi all, > > > > The cam lobe is on the low side where I want to install two rocker arms. What's the best way of getting the cam lobe on the high side so I can pop in the rocker arms? > > > > Thanks, > > > > Mike > > > > Have you cleaned the "lash adjusters" ? You may want to view this > YouTube https://www.youtube.com/watch?v=ksrDE2zjC34 > > The adjusters seem to be the cause of the "fallen" rockers. Lots of > other YT videos re this issue. I bought a couple of new ones tonight to replace the old ones The old ones were frozen solid. I should probably change them all since I'm in there, but I'm not. Mike |
#20
|
|||
|
|||
2004 Jeep Liberty
On Thursday, May 25, 2017 at 9:34:07 PM UTC-5, AMuzi wrote:
> On 5/25/2017 8:49 PM, Michael wrote: > > On Thursday, May 25, 2017 at 7:48:41 PM UTC-5, Michael wrote: > >> On Thursday, May 25, 2017 at 7:33:57 AM UTC-5, Steve W. wrote: > >>> Michael wrote: > >>>> On Wednesday, May 24, 2017 at 8:24:16 PM UTC-5, Steve W. wrote: > >>>>> Michael wrote: > >>>>>> On Tuesday, May 23, 2017 at 8:32:31 PM UTC-5, Steve W. wrote: > >>>>>>> Michael wrote: > >>>>>>>> On Thursday, May 11, 2017 at 5:44:58 PM UTC-5, Michael wrote: > >>>>>>>> > >>>>>>>>> On Wednesday, May 10, 2017 at 1:12:11 AM UTC-5, Steve W. > >>>>>>>>> wrote: > >>>>>>>>> > >>>>>>>>>> Michael wrote: > >>>>>>>>>>> I have a 2004 Jeep Liberty and the engine is misfiring. > >>>>>>>>>>> If it was my old 2003 Ford F150, I'd know to change out > >>>>>>>>>>> a coil. Is there something similar in the engine of > >>>>>>>>>>> this model Jeep that I can change easily? > >>>>>>>>>>> > >>>>>>>>>>> Thanks, > >>>>>>>>>>> > >>>>>>>>>>> Mike > >>>>>>>>>> It uses COP units, coil on plug. Easy to change IF they > >>>>>>>>>> are the issue. When was the last time the plugs were > >>>>>>>>>> changed? These do not use a high mileage plug, they use a > >>>>>>>>>> copper plug that needs to be changed every 35K or they > >>>>>>>>>> start misfiring, If you install any of the platinum or > >>>>>>>>>> iridium plugs they tend to mis-fire as well. > >>>>>>>>>> > >>>>>>>>>> There is one copper core with platinum tip that works OK > >>>>>>>>>> but they are hard to find. > >>>>>>>>>> > >>>>>>>>>> If you have multiple mis-fires you will want to check the > >>>>>>>>>> fuel pump output and make sure you are getting good > >>>>>>>>>> flow. -- Steve W. > >>>>>>>>> Thanks, Steve! > >>>>>>>>> > >>>>>>>>> Mike > >>>>>>>> So I've changed the plugs and coils, but I'm still getting > >>>>>>>> misfires according to the machine from Autozone. What's the > >>>>>>>> next thing that I should check? > >>>>>>>> > >>>>>>>> Thanks, > >>>>>>>> > >>>>>>>> Mike > >>>>>>> What were the codes that came up? Any strange noises or other > >>>>>>> problems like lower gas mileage, running hotter than normal, > >>>>>>> smell of fuel? > >>>>>>> > >>>>>>> -- Steve W. > >>>>>> Hi Steve, > >>>>>> > >>>>>> Code P0306 indicates that Cylinder 6 has too many misfires within > >>>>>> a predetermined period of time. > >>>>>> > >>>>>> PO306 Cylinder 1-10 Misfire Detected P0300 P0302 P0303 P0304 > >>>>>> > >>>>>> Any thoughts would be greatly appreciated. I read where it could > >>>>>> be a bad ASD relay too, but I couldn't find one on this car. I'm > >>>>>> going to try the fuel injector cleaner. I may try replacing the > >>>>>> fuel injectors at some point. > >>>>>> > >>>>>> Thanks, > >>>>>> > >>>>>> Mike > >>>>> Check the running fuel pressure. That's a returnless system and the > >>>>> pumps do get weak. I see where you hear a click from a possible > >>>>> rocker arm. That could account for one cylinder but it wouldn't > >>>>> cause the random miss or 3 and 4 misses. > >>>>> > >>>>> I would start with a fuel pressure test, then do a top cylinder > >>>>> cleaning as the 3.7 is prone to carbon build up. > >>>>> > >>>>> -- Steve W. > >>>> > >>>> Thanks, Steve. Much appreciated! > >>>> > >>>> Here is a video that demonstrates the sound that my Jeep is making. > >>>> It could well be that it has more than one problem. > >>>> > >>>> https://www.youtube.com/watch?v=aZU0OzhsgyQ (2:49) > >>>> > >>>> Mike > >>> > >>> It's very possible it's tossed a rocker arm. I would start with the easy > >>> stuff first. Then pop the valve cover off and take a look if they don't > >>> improve the issue. Broken valve spring or fallen rockers are easy to spot. > >>> > >>> -- > >>> Steve W. > >> > >> Steve, > >> > >> I took the valve covers off. As it turns out, it wasn't a fallen rocker arm. It was TWO fallen rocker arms on the passenger's side. The lifters are frozen solid, so I'll replace those and hope it runs for a while. > >> > >> Mike > > > > Hi all, > > > > The cam lobe is on the low side where I want to install two rocker arms. What's the best way of getting the cam lobe on the high side so I can pop in the rocker arms? > > > Turn the engine until the cam's in the valve closed > position. (just replaced a bent pushrod last evening). > > -- > Andrew Muzi > <www.yellowjersey.org/> > Open every day since 1 April, 1971 Thanks, Andrew! Do I actually start the car or just turn the engine a little bit until they are in position? Much appreciated. Mike |
Thread Tools | |
Display Modes | |
|
|
Similar Threads | ||||
Thread | Thread Starter | Forum | Replies | Last Post |
Power window on 2004 Jeep Liberty | GARY | Technology | 3 | October 19th 10 01:36 AM |
Power windows in 2004 Jeep Liberty | GARY | Technology | 0 | October 18th 10 02:24 AM |
2004 Jeep (KJ)Liberty update (0/1) | [email protected] | Auto Photos | 0 | November 25th 09 09:24 AM |
2004 Jeep Liberty Lift kit install. | [email protected] | Jeep | 34 | July 2nd 09 05:18 AM |
2004 Jeep Liberty Question | The Heibloems | Jeep | 4 | December 16th 06 01:13 PM |