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It starts to overheat from the engine idling high?

Tiny
SLPANKAU
  • MEMBER
  • 2002 DODGE NEON
  • 2.0L
  • 4 CYL
  • 2WD
  • AUTOMATIC
  • 170,000 MILES
When I start my car, it automatically starts revving up. It stays revving up when I'm going. I drove it on the bypass doing 70 MPH and I never touched the gas pedal. At the stop light I had to put it in neutral and it stayed revved up. Then of course it starts to overheat from it idling so high. The code reader said it could be several sensors, but I was hoping to narrow it down.
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Tuesday, August 9th, 2022 AT 1:51 PM

1 Reply

Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 42,949 POSTS
What codes are they? It is probably your IAC motor that is stuck or not working, I would remove the IAC motor and use carburetor cleaner to clean out the passages. Here is the location of the IAC in the images below. This guide may help as well:

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

Check out the diagrams (below). Please let us know what happens.
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Tuesday, August 9th, 2022 AT 4:03 PM

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