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WON'T SHUT OFF WITH KEY OUT

Tiny
JJEWELL
  • MEMBER
  • 2003 GMC ENVOY
  • 6 CYL
  • 4WD
  • AUTOMATIC
  • 96,000 MILES
My Envoy began acting up by not shutting off when you turn off the ignition and take out the key. When this happens, the SERVICE 4WD light comes on, then the ABS and PARKING BRAKE light come on. The car will drive without the keys, but seems to have less power. Sometimes it shuts off as it should. When I get in to start it after it has been sitting overnight, the SERVICE ENGINE SOON light is on before I put the key in and the battery is dead. Jump starts easily. The ignition switch has already been replaced. Any ideas?
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Thursday, May 14th, 2009 AT 1:32 PM

3 Replies

Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 42,840 POSTS
Yep, the ignition switch has falling apart internally. I know you had the ignition tumbler replaced but not the switch which is causing the problem but to be sure let's run a simple test with a test light to make sure the switch is not cutting off the power.

Here is a guide to help us get started.

https://www.2carpros.com/articles/how-to-use-a-test-light-circuit-tester

See where the power is staying on when it should be off

Please let us know what happens.

Cheers, Ken
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Monday, November 13th, 2017 AT 8:25 PM
Tiny
JENNIFER HEINDL
  • MEMBER
  • 1 POST
  • 2003 GMC ENVOY
  • 150,000 MILES
The steering wheel is not locked and the key will not turn it is locked.
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Thursday, June 21st, 2018 AT 1:49 PM (Merged)
Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 42,840 POSTS
This guide can help

https://www.2carpros.com/articles/ignition-switch-wont-turn-stuck

Let us know what happens and please upload pictures or videos of the problem.

Cheers, Ken
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Thursday, June 21st, 2018 AT 1:50 PM

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