Ehngine running

Tiny
RECRUIT6
  • MEMBER
  • 2006 CADILLAC ESCALADE
  • V8
  • AWD
  • AUTOMATIC
  • 106,000 MILES
2006 escalade base engine will not shut off when key is in off position
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Friday, February 11th, 2011 AT 2:36 AM

4 Replies

Tiny
FACTORYJACK
  • EXPERT
I would suspect that the ignition switch may be faulty. Does it have any aftermarket accessories installed that could be causing an issue?
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Friday, February 11th, 2011 AT 6:07 AM
Tiny
RECRUIT6
  • MEMBER
No after market aceessories. Intially all the lights were flashing and the engine would not stop running. I had to pull the fuel pump fuse to get it to shut down.I took it to a reptiable non-dealer shop and they could not figure out what was going on. They did not have the device to read certain error codes. The shop owner ruled out the ignition switch, but believeed it may have something to do with the secruity system or the computer needing to be reflashed. I cranked it up this morning and took to the dealer find out what is going on. It started fine this morning and when I got to the dealership, it turned of without a problem. The only light that is on is the airbag light. Any ideas on what is going on?
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Friday, February 11th, 2011 AT 3:34 PM
Tiny
FACTORYJACK
  • EXPERT
That is a symptom that I am not familiar with, and I have been with cadillac for a decade or so. I can't see it being a concern with the security system, as it should not keep the vehicle running. Several things need to be present for it to continue running, like power to the ECM for spark and injector pulse, and power to the fuel pump. I would assume it doesn't respond to throttle applications when it runs, just idles. When it is stuck running, try removing the ignition one relay in the underhood fuse block. It is controlled by a run/start power supply, and hard wire ground, but it controls B+(hot all times) power to the injectors, the ECM, and possibly the fuel pump as well. I could suspect that relay for sticking and causing these symptoms. After it has exhibited a failure, swap it with a similar relay in the fuse block and see if it happens again. If it is not the relay sticking, I would still bet on the ignition switch.
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Thursday, February 17th, 2011 AT 3:46 AM
Tiny
RECRUIT6
  • MEMBER
Thanks for your replies! I have the vehicle back and according to the tech it was the ECM? Module that shorted out. It looked like some water got into the relay and caused the problem.
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Friday, February 18th, 2011 AT 5:22 PM

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