Most we have seen have been sluged badly, due to maintenance issues, but
the intrepid i own had its oil changed every 3000 miles since new, and the
timing chain failed at 45k still.

also, how is it considered tampering when none of the emissions components
are removed or compromised? would it not be the same "tampering" if you
were to remove a v6 from a 1981 monte carlo and replace with a 5.7l???
all you are doing is replacing the standard 2.7 with the optional
3.2l---90% of the parts except hoses, intake and radiator are
different......

also, how is it considered tampering when none of the emissions components
are removed or compromised? would it not be the same "tampering" if you
were to remove a v6 from a 1981 monte carlo and replace with a 5.7l???
all you are doing is replacing the standard 2.7 with the optional
3.2l---90% of the parts except hoses, intake and radiator are
different......

Im not saying it is tampering, I was simply stating...but if you use a
different application PCM for another engine i would think that in the eyes
of EPA they may consider that tampering
"toyota1" > wrote in message
lkaboutautos.com...
> also, how is it considered tampering when none of the emissions components
> are removed or compromised? would it not be the same "tampering" if you
> were to remove a v6 from a 1981 monte carlo and replace with a 5.7l???
> all you are doing is replacing the standard 2.7 with the optional
> 3.2l---90% of the parts except hoses, intake and radiator are
> different......
>

Im not saying it is tampering, I was simply stating...but if you use a
different application PCM for another engine i would think that in the eyes
of EPA they may consider that tampering
"toyota1" > wrote in message
lkaboutautos.com...
> also, how is it considered tampering when none of the emissions components
> are removed or compromised? would it not be the same "tampering" if you
> were to remove a v6 from a 1981 monte carlo and replace with a 5.7l???
> all you are doing is replacing the standard 2.7 with the optional
> 3.2l---90% of the parts except hoses, intake and radiator are
> different......
>

wow. i havent even heard of a timing chain failure yet,
"toyota1" > wrote in message
lkaboutautos.com...
> Most we have seen have been sluged badly, due to maintenance issues, but
> the intrepid i own had its oil changed every 3000 miles since new, and the
> timing chain failed at 45k still.
>

wow. i havent even heard of a timing chain failure yet,
"toyota1" > wrote in message
lkaboutautos.com...
> Most we have seen have been sluged badly, due to maintenance issues, but
> the intrepid i own had its oil changed every 3000 miles since new, and the
> timing chain failed at 45k still.
>

I don't have sludging problems. Maybe my oil, filter and maintenance
combinations work. I don't use Pennzoil. Here's one oil that creates sludge.
I've seen it sludge up rebuilt engines in no time. I just can't bring myself
to buy a foreign manufacturer's vehicle.

Larry
Unlock the Universe

"toyota1" > wrote in message
lkaboutautos.com...
| larry, the problem with the 2.7 is that the oil pickup and passages in the
| cylinder heads are too small and it causes a large amount of sludge to
| form, thus reducing the oil flow to the top end, and damaging timing chain
| and valve train. as these are an interference engine, if the timing chain
| breaks, pistons hit valves, and so on.. ive seen 2.7s with 40k miles on up
| to 120k miles fail. it all depends on the maintenance of the vehicle.
sorry
| you feel that way about toyotas, but my truck with 200k miles and original
| engine, etc, is much more impressive than my dodge intrepid 2.7 that
| failed with 45k miles on it, and my dodge truck (used to have) that the
| transmission failed at 70k, and both had had oil changes done every 4k
| miles since new, trans fluid flush every 25k. it now has a 3.2 with almost
| 20k miles and is running perfectly.
|

I don't have sludging problems. Maybe my oil, filter and maintenance
combinations work. I don't use Pennzoil. Here's one oil that creates sludge.
I've seen it sludge up rebuilt engines in no time. I just can't bring myself
to buy a foreign manufacturer's vehicle.

Larry
Unlock the Universe

"toyota1" > wrote in message
lkaboutautos.com...
| larry, the problem with the 2.7 is that the oil pickup and passages in the
| cylinder heads are too small and it causes a large amount of sludge to
| form, thus reducing the oil flow to the top end, and damaging timing chain
| and valve train. as these are an interference engine, if the timing chain
| breaks, pistons hit valves, and so on.. ive seen 2.7s with 40k miles on up
| to 120k miles fail. it all depends on the maintenance of the vehicle.
sorry
| you feel that way about toyotas, but my truck with 200k miles and original
| engine, etc, is much more impressive than my dodge intrepid 2.7 that
| failed with 45k miles on it, and my dodge truck (used to have) that the
| transmission failed at 70k, and both had had oil changes done every 4k
| miles since new, trans fluid flush every 25k. it now has a 3.2 with almost
| 20k miles and is running perfectly.
|

Im surprised that you are a chrysler tech and havent seen any chains or
2.7s fail, the local chrysler dealer here says they do 3 to 4 per month--
timing chains or engine replacements due to sludge or lower end failures--
must not be too common yet in your area. I looked up intrepids on the local
auto trader and found 12 listed with blown 2.7l engines.