Truck cranks at high RPMs and shuts off?

STEINMETZ1025

MEMBER
2002 DODGE RAM
4.7L
V8
4WD
AUTOMATIC
185,000 MILES

The truck listed above is a 1500. It cranks and revs to high RPMs and cuts off. If I press gas at crank revs to high RPMs and won’t go down until ignition is cut off.

Monday, October 10th, 2022 AT 3:27 PM

3 Replies

KEN L

MASTER CERTIFIED MECHANIC
47,537 POSTS

It sounds like you have something holding the throttle cable open at the throttle body or the IAC (idle air control) motor is stuck on full and will not release the idle speed. Here is the location of the throttle body and IAC so you can check it out. If the cable and throttle body butterfly seem closed then I would replace the IAC motor. Check out the images (below). Please let us know what you find. We are interested to see what it is.

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Tuesday, October 11th, 2022 AT 9:41 AM

STEINMETZ1025

MEMBER
3 POSTS

Thank you for your quick response. I was thinking the same thing on some type of air flow issue. While checking the throttle body and hoses around the manifold. I pulled on hose leading back to manifold and felt a plate hanging off of it. I noticed a hole in the back of manifold where the plate goes. The plastic plate on the back of manifold lost its seal and came off resulting in the issue.

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Tuesday, October 11th, 2022 AT 10:57 AM

KEN L