Hello folks,

Thanks in advance for any advice you can give.

We had a rebuilt transmission installed in my wife's 2001 t&c @110k. Since then I am having a problem with the car bucking and backfiring over 3000rpm when accelerating of driving uphill.

Not at all sure if the two are even related.

Can you help?

Thanks again!

 

Above should have read "when accelerating or driving uphill".

 

Oops. And no "check engine" light has come on.

 

do the key on key off trick and see if any codes come on just cauz the light is not on does not mean there wont be any codes.

 

The codes are 0442, 0455, 1391, 1398, 1684.

Thanks!

 

P1398-MIS-FIRE ADAPTIVE NUMERATOR AT LIMIT

P1391-INTERMITTENT LOSS OF CMP OR CKP

442 and 455 are evap codes

 

What in the world is an adaptive numerator?

Thanks again for your help!

 

Every Chrysler car will have a vary small difference with the design basic mechanizing of parts. The adaptive numerator is the computers ability to learn the mili seconds for the crank shaft to do com-pleat turns based off the decell of the car its a learning thing . Replace the cam or crank sensor u should be good.

 

Thank you so much!

 

Hi,
In an ideal world it would be nice if the gearbox was removed and replaced "WITHOUT" undoing any electrical conections, as some times earth cables are not replaced of contamination gets into other connections....So check what was uncoupled......
Goggs....