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1997 Dodge Other Repair Question


Topics covered: Engine, Rpm, Idler pulley.
Mileage: 161,718 miles.

Asked on October 12, 2012

Why is my van idling at 300+ rpm?

I have a 97 Dodge Grand Carvan SE 3.3L V6. I have recently replaced the alternator, the tensioner pulley, the serpentine belt and the idler pulley. The most recent being the idler pulley my van is now idling at 3000+ rpm. What could be my problem?
Avatar Asked by denalib

Answer

Replied on October 12, 2012

I meaNT TO WRITE 3000+ RPM

Tiny Response from denalib
1 question asked
Replied on October 12, 2012

You could have a vacuum leak or your Idle Air Control Valve is Bad. The IACV is what controls idle under engine load changes and acts as a choke when engine is cold. However your RPMs are very high and seem to indicate either something keeping the intake butterfly from closing like the cable is binding or the butterfly valve is stuck due to sludge or carbon deosits. The vacuum leak you would be looking for would be pretty large as well.
However there are enough possiblities that I think you should use this diagnsotic walk through to figure out the problem. When it talks about pulling codes, testing electrical components or needing special test kits, Advance auto or Auto Zone will pull codes and test components for free and they loan out tools for testing .
Just use the link below to get to the diagnostic;

http://www.2carpros.com/articles/engine-idles-too-high

Tiny Answered by DrCranknWrench (expert)
3,292 answers provided
Replied on October 12, 2012

Thank you!!!

Tiny Response from denalib
1 question asked

Replied on October 13, 2012

Your very welcome. Come back to us if you need anything else.

Dr. C

Tiny Answered by DrCranknWrench (expert)
3,292 answers provided