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Chris (aka - Moose)
Chris (aka - Moose), Technician
Category: Chrysler
Satisfied Customers: 45542
Experience:  16 years of experience
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My 2002 PT Cruiser is idling at 3000 rpm. I changed out IAC

Customer Question

My 2002 PT Cruiser is idling at 3000 rpm. I changed out IAC motor but it is still at 3000 rpm
Submitted: 11 months ago.
Category: Chrysler
Expert:  Chris (aka - Moose) replied 11 months ago.

Welcome, I'm Chris (aka Moose). Experts aren't employees / agents of Just Answer. We are independent service providers using the Site to sell their Expert knowledge to Customers. I strive to provide EXCELLENT 5 STAR service, let me know what's needed from me so your pleased.

  1. Any warning lights on?
  2. With the IAC unplugged is the idle down to about 500 rpms?
Customer: replied 11 months ago.
The check engine light is on. I have not tried unplugging IAC motor yet
Expert:  Chris (aka - Moose) replied 11 months ago.

Do you know which codes are stored and can you try the IAC unplugged for me prior to your next response?

Customer: replied 11 months ago.
Will do. I am currently at work. I will not be able to get to it until 8 am.
Expert:  Chris (aka - Moose) replied 11 months ago.

No problem. I am here every day starting at about 3 pm central.

Customer: replied 11 months ago.
OK now the engine lopes and won't stay running
Customer: replied 11 months ago.
When I step on the gas it gets to about 2500 rpm and then it begins to lope. If I floor it it will drop out
Expert:  Chris (aka - Moose) replied 11 months ago.

Are you flooring it in drive or park. In park or neutral the rev limiter will shut down the injectors to prevent damaging the engine. How did you come out on unplugging the IAC and checking the codes?

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Customer: replied 11 months ago.
I disconnected the battery and it dropped to 1000 rpm. When I put it in drive it will cut out.
Expert:  Chris (aka - Moose) replied 11 months ago.

When you unplug the idle air control valve what is the idle speed in park?

Customer: replied 11 months ago.
It wouldn't stay running
Expert:  Chris (aka - Moose) replied 11 months ago.

Can you keep it running with throttle pressure. I am trying to determine if the IAC is causing the high idle concerns.

Customer: replied 11 months ago.
There is no high idle anymore. Yes if I step on the gas it revs up but now when I step on the gas and then it cuts back
Expert:  Chris (aka - Moose) replied 11 months ago.

With the IAC unplugged and holding just enough throttle to keep it running when you plug the IAC back in does it jump right back up to 3000 rpms and stay there like your original question?