Engine stalling at idle?

Tiny
JOHN.CORYEA
  • MEMBER
  • 2007 CADILLAC ESCALADE
  • 85,000 MILES
My escalade recently began stalling when it is idling. The problem first started about a month ago. I was stopped at a red light and the car stalled. When I went to start the vehicle it turned over several times before actually starting. This occured a couple more times over the next few days. I also noticed that even without stalling the vehicle was sometimes, but not always, turning over more before actually starting. I put some fuel injector cleaner in my tank and filled up thinking maybe something got into my gas tank (accidentally or intentionally) and gummed up my injectors. This actually did help for a couple of weeks, then about a week ago the problem started again. The stalling only occurs when the vehicle is idling, either in gear or in park. When the vehicle is started back up after stalling it always turns over numerous times (10-20) before it actually starts. Also, once it stats back up a message comes on that says "service stabilitrak". Lastly, sometimes the check engine light also comes on. I had it checked and the code given was "crank shaft positioning sensor." Not sure it this code is actually causing the problem or if it happened as a result of the vehicle stalling, which is being caused by something else. Any help is GREATLY apprectiated!
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Tuesday, February 12th, 2013 AT 5:29 PM

7 Replies

Tiny
HMAC300
  • MECHANIC
  • 48,606 POSTS
This sounds like a classic throttle plate buyild up which is common these guides will help you fix the problem.

https://www.2carpros.com/articles/stall-at-idle

and

https://www.2carpros.com/articles/throttle-actuator-service

Please run down these guides and report back.
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Tuesday, February 12th, 2013 AT 5:56 PM
Tiny
PAT5196
  • MEMBER
  • 1 POST
I had this problem and got some fuel tank additive with the cleaner for the throttle body, no more problems. Thank you 2CarPros! The only thing I didn't do is a tune up which I will do this weekend.
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Wednesday, November 11th, 2020 AT 4:08 PM
Tiny
MCLAWSON5
  • MEMBER
  • 1 POST
  • 2002 CADILLAC ESCALADE
  • 6 CYL
  • AWD
  • AUTOMATIC
  • 126,000 MILES
The engine starts to cut off when idling or coming to a stop. At times, if I stay at a light too long I can feel the engine get "rough", idle down, and turn off. I can immediately get it to crank back up with no problems. As times has passed, it now dies when driving slowly. On some particular days, it may die four or five times in a row. Can anyone help me solve this without spending a fortune at the mechanic. Also, I might add that this happened to my last vehicle.
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Wednesday, November 11th, 2020 AT 4:09 PM (Merged)
Tiny
FACTORYJACK
  • MECHANIC
  • 4,159 POSTS
This is a common problem and it is caused by a dirty throttle bore. Here is a guide to help you get it fixed up.

https://www.2carpros.com/articles/throttle-actuator-service

Please run down this guide and report back.
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Wednesday, November 11th, 2020 AT 4:09 PM (Merged)
Tiny
LARRYGOED
  • MEMBER
  • 2 POSTS
  • 2002 CADILLAC ESCALADE
  • V8
  • AWD
  • AUTOMATIC
  • 106,000 MILES
I have changed the fuel filter and did the pass key reset. It will start for about 1 min. And then dies. I try to restart and it wont fire. Does this sound like the fuel pump or pressure regulator valve? The gas tank is 1/4 full.
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Wednesday, November 11th, 2020 AT 4:09 PM (Merged)
Tiny
MASTERTECHTIM
  • MECHANIC
  • 4,749 POSTS
Hello,

I would service the throttle body first because it sounds like it is dirty here is a guide to help you with the service.

https://www.2carpros.com/articles/throttle-actuator-service

Please run down this guide and report back.
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Wednesday, November 11th, 2020 AT 4:09 PM (Merged)
Tiny
LESLLIAMR
  • MEMBER
  • 1 POST
Thanks the guide worked perfect
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Wednesday, November 11th, 2020 AT 4:09 PM (Merged)

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