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dodge caravan auto transmission life add tranny oil cooler
since 1990 on 4 older caravans I must have gone thru 10 transmissions,
although AAMCO covered some under a lifetime warranty. A good friend has a 90 dodge spirit on 3rd transmission. will a oil cooler help extend tranny life? as of today I have a 92 and 94 both with possible tranny troubles. I carry a lot of weight but dont beat the vehicles, use them for work |
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#2
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dodge caravan auto transmission life add tranny oil cooler
I would think that a cooler would help, in that it would keep the fluid
cooler than the regular radiator cooler. This would especially be the case when pulling a trailer or under heavy load conditions. The transmission on my 1990 Spirit failed at 110,000 miles due to a thrust washer being worn, which caused damage to the mainshaft. I don't know if a cooler would have helped in that case. -KM On Jan 16, 7:31 pm, " > wrote: > since 1990 on 4 older caravans I must have gone thru 10 transmissions, > although AAMCO covered some under a lifetime warranty. A good friend > has a 90 dodge spirit on 3rd transmission. > > will a oil cooler help extend tranny life? > > as of today I have a 92 and 94 both with possible tranny troubles. > > I carry a lot of weight but dont beat the vehicles, use them for work |
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dodge caravan auto transmission life add tranny oil cooler
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#5
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dodge caravan auto transmission life add tranny oil cooler
Steve wrote: > wrote: > > > since 1990 on 4 older caravans I must have gone thru 10 transmissions, > > although AAMCO covered some under a lifetime warranty. A good friend > > has a 90 dodge spirit on 3rd transmission. > > Well, AAMCO is probably responsible for about 8 of those failures if > that's the transmission shop you're using. RUN AWAY! > > > > will a oil cooler help extend tranny life? > Generally, yes. Keeping the transmission temperature down is always a > good thing. And the electronic Chrysler transmissions are a little hard > on the fluid because they run full hydraulic pressure all the time, > unlike older transmissions that reduce pressure when the throttle is > lightly applied. Running full pressure allows the computer to always be > able to modulate clutch application correctly, but it does generate a > bit more heat. > > On the other hand, the most common causes of problems with these > transmissions are not related to heat. The most common thing is not > running the correct fluid (ATF +3 or ATF +4) and scAAMCO has been > notorious for just throwing Dexron fluid in them. That's certain death. > The other most common problem is sensor failure- whenever the input or > output speed sensor fails, the transmission will go into "limp" mode > (2nd gear all the time) and people tend to keep driving them that way, > turning the key off and back on to reset the transmission. That's rough > on them, because when they get reset they try to run through the gears, > but with an incorrect speed reference the shift characteristics are wrong. > > The third common cause of failure is hardware problems with the early > (pre-93 for the most part) transmissions. Cracked snap-rings, things > like that. But those should have been fixed LONG ago in any new > transmission that was installed. > > > > > > as of today I have a 92 and 94 both with possible tranny troubles. > > > > I carry a lot of weight but dont beat the vehicles, use them for work > > That should be fine, but it is a case where a cooler would be helpful. > The best thing you can do is get service IMMEDIATELY if you have > "possible tranny troubles," and go to a shop that knows Chrysler > transmissions and stocks the correct fluid. Make sure they show you > bottles of ATF +3 or +4 sitting on the shelf before you agree to let > them service the car. If they say anything about using Dexron with any > sort of additve that "makes it compatible" with Chrysler transmissions, > run like HELL. And call them idiots over your shoulder. THANKS! My 92 with 3.0 engine doesnt appear to be shifting into top gear, I hope its not rebuild time my 94 missed a couple shifts pulling out from a dead stop, I added a little of that transmission medic stuff since it was a little low. kinda depressed about vehicles currently. My AAMCO was a good deal, 5 or 6 free transmissions in 300,000 miles. sorry today I finally junked it with about 400,000 miles on it. my best friends dodge spirit has had repeated transmission rebuilds, driven by his daughter she isnt beating it, i used to date her. her dad been stuck with the bill, your response will likely get a cooler added soon. |
#6
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dodge caravan auto transmission life add tranny oil cooler
> wrote in message ps.com... > > Steve wrote: >> wrote: >> >> > since 1990 on 4 older caravans I must have gone thru 10 transmissions, >> > although AAMCO covered some under a lifetime warranty. A good friend >> > has a 90 dodge spirit on 3rd transmission. >> >> Well, AAMCO is probably responsible for about 8 of those failures if >> that's the transmission shop you're using. RUN AWAY! >> > >> > will a oil cooler help extend tranny life? >> Generally, yes. Keeping the transmission temperature down is always a >> good thing. And the electronic Chrysler transmissions are a little hard >> on the fluid because they run full hydraulic pressure all the time, >> unlike older transmissions that reduce pressure when the throttle is >> lightly applied. Running full pressure allows the computer to always be >> able to modulate clutch application correctly, but it does generate a >> bit more heat. >> >> On the other hand, the most common causes of problems with these >> transmissions are not related to heat. The most common thing is not >> running the correct fluid (ATF +3 or ATF +4) and scAAMCO has been >> notorious for just throwing Dexron fluid in them. That's certain death. >> The other most common problem is sensor failure- whenever the input or >> output speed sensor fails, the transmission will go into "limp" mode >> (2nd gear all the time) and people tend to keep driving them that way, >> turning the key off and back on to reset the transmission. That's rough >> on them, because when they get reset they try to run through the gears, >> but with an incorrect speed reference the shift characteristics are >> wrong. >> >> The third common cause of failure is hardware problems with the early >> (pre-93 for the most part) transmissions. Cracked snap-rings, things >> like that. But those should have been fixed LONG ago in any new >> transmission that was installed. >> >> >> > >> > as of today I have a 92 and 94 both with possible tranny troubles. >> > >> > I carry a lot of weight but dont beat the vehicles, use them for work >> >> That should be fine, but it is a case where a cooler would be helpful. >> The best thing you can do is get service IMMEDIATELY if you have >> "possible tranny troubles," and go to a shop that knows Chrysler >> transmissions and stocks the correct fluid. Make sure they show you >> bottles of ATF +3 or +4 sitting on the shelf before you agree to let >> them service the car. If they say anything about using Dexron with any >> sort of additve that "makes it compatible" with Chrysler transmissions, >> run like HELL. And call them idiots over your shoulder. > > THANKS! My 92 with 3.0 engine doesnt appear to be shifting into top > gear, I hope its not rebuild time > > my 94 missed a couple shifts pulling out from a dead stop, I added a > little of that transmission medic stuff since it was a little low. > > kinda depressed about vehicles currently. > > My AAMCO was a good deal, 5 or 6 free transmissions in 300,000 miles. > > sorry today I finally junked it with about 400,000 miles on it. > > my best friends dodge spirit has had repeated transmission rebuilds, > driven by his daughter she isnt beating it, i used to date her. her dad > been stuck with the bill, your response will likely get a cooler added > soon. > Additives are also highly recommended against for the A604/41TE. It has been said many times and I will repeat it again that the only thing that should be poured into an electronic Chrysler transmission is ATF+3 or ATF +4. No dyes, additives, stop leaks, dexron, or lubeguard should ever be used as they will almost certainly shorten the service life of the tranny sometimes dramatically. |
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dodge caravan auto transmission life add tranny oil cooler
> > Additives are also highly recommended against for the A604/41TE. It has > been said many times and I will repeat it again that the only thing that > should be poured into an electronic Chrysler transmission is ATF+3 or ATF > +4. No dyes, additives, stop leaks, dexron, or lubeguard should ever be > used as they will almost certainly shorten the service life of the tranny > sometimes dramatically. how can I tell which transmissions I have? a 92 3.0 engine and a 94 3.0 engine. |
#8
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dodge caravan auto transmission life add tranny oil cooler
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#9
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dodge caravan auto transmission life add tranny oil cooler
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#10
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dodge caravan auto transmission life add tranny oil cooler
> wrote in message ps.com... > >> >> Additives are also highly recommended against for the A604/41TE. It has >> been said many times and I will repeat it again that the only thing that >> should be poured into an electronic Chrysler transmission is ATF+3 or ATF >> +4. No dyes, additives, stop leaks, dexron, or lubeguard should ever be >> used as they will almost certainly shorten the service life of the tranny >> sometimes dramatically. > > how can I tell which transmissions I have? > > a 92 3.0 engine and a 94 3.0 engine. The 3.0 Mitsubishi engine could use either of the 2 transaxles. If it is the A604 4 speed electronic the shifter indicator will show P, R, N, D, 3, L If it is the A413 3 speed mechanical the shifter indicator will show P, R, N, D, 2, 1 |
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