When starting the car it revs to 6000 RPM's

2002 DODGE DURANGO
150,000 MILES • 4.7L • V8 • 4WD • AUTOMATIC
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MEAST2136
  • MEMBER
  • 2 POSTS
I have to immediately shut the vehicle down. I've changed the TPS and IAC valve, and cleaned the throttle body. the gas pedal isn't stuck and neither is the butterfly in the throttle body.
Sep 1, 2019 at 9:21 AM
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94 TRANSAM
  • AUTOMOTIVE REPAIR CONTRIBUTOR
  • 680 POSTS
Hi and welcome to 2CarPros! Lets get this figured out.

Have you checked for any trouble codes? If so what are they? If not can you do so?

Since you changed the IAC at this point it sounds like a massive vacuum leak or the IAC circuit is malfunctioning.

Rich.
Sep 3, 2019 at 10:21 AM
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STRAILER
  • AUTOMOTIVE REPAIR CONTRIBUTOR
  • 54,178 POSTS
Here are the guides to help you get started:

https://www.2carpros.com/articles/checking-a-service-engine-soon-or-check-engine-light-on-or-flashing

and

https://www.2carpros.com/articles/how-to-use-an-engine-vacuum-gauge

Please run down these guides and report back.
Sep 3, 2019 at 11:59 AM