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brownjeff
brownjeff, ASE Certified Technician
Category: Chrysler
Satisfied Customers: 13885
Experience:  17 years experience, ASE certified, dealership certified, Service Manager for 15 years,
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Chrysler PT Cruiser GT high idle at 2000 rpm or more

Customer Question

high idle at 2000 rpm or more
Submitted: 3 years ago.
Category: Chrysler
Expert:  brownjeff replied 3 years ago.
Hello and Welcome to JustAnswer,

My name is XXXX XXX I am here to try and assist your with your question.

Does the check engine light come on and if so any codes?

Have you checked for a vacuum leak?
Customer: replied 3 years ago.

check engine light is on

p 0304

p 0038

had a mechanic for vacummn leak

Expert:  brownjeff replied 3 years ago.
Has the throttle body been cleaned and the idle air control motor checked?
Customer: replied 3 years ago.

no

where is idle air control motor?

Expert:  brownjeff replied 3 years ago.
In the throttle body. Many times this will get carbon build up in here and cause the idle air control motor to stick and the result is the problem you have. For a picture of the location click HERE
Customer: replied 3 years ago.

still there?

 

Expert:  brownjeff replied 3 years ago.
I'm back. How did you make out?
Customer: replied 3 years ago.
hi
I have high idle (2000+rpm) on my 2003 pt gt with manual trans.
I replaced coil, plugs, done throttle body cleaning, replaced obd compu., and checked idling air control motor.
But... still high.
With a/c on, it drops to around 1,800 rpm.
It is not drivable, yet.
My diagnosys failure code shows P0304 (misfire on cylinder no.4)
and P0038.
Vacumn sounds good though.
Anything else should I check?
Expert:  brownjeff replied 3 years ago.
If you block off the air going to the throttle body will the engine still run? If it does you have a vacuum leak

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