Stalls at idle?

Tiny
BLUEDEVIL2299
  • MEMBER
  • 1992 TOYOTA 4RUNNER
  • 4 CYL
  • 4WD
  • MANUAL
  • 215,000 MILES
My truck starts fine but cuts off immediately. Wont idle at all. Ive changed the throttle position sensor and fuel pressure regulator. The fuel pump is new also. Ive heard the idle air control valve or egr valve or crank sensor im at a loss any suggestions?
Wednesday, April 8th, 2009 AT 5:22 PM

1 Reply

Tiny
SQM
  • MECHANIC
  • 6,383 POSTS
Hello,

It sounds like you might have an issue with the Idle actuator.
Many times if the actuator is is dirty, or have damages vacuum hose, it can have an impact on the idle of the engine.
You can take the valve off and clean it. Replace any brittle hose. Usually that takes care of the issue.

Here are couple of helpful articles on how to clean the valve:

https://www.2carpros.com/articles/how-a-idle-air-control-valve-works
https://www.2carpros.com/articles/idle-air-control-valve-service

I have attached the diagrams for the actuator.

You also may want to clean out the throttle body and check to see if any of the hoses are leaking.

Please let me know of any questions.

Thank you.
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Tuesday, August 3rd, 2021 AT 10:21 AM

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