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2001 Chevy Suburban Engine turns off

Tiny
ERC6668
  • MEMBER
  • 2001 CHEVROLET SUBURBAN
  • V8
  • 2WD
  • AUTOMATIC
  • 114,000 MILES
While driving engine seems to loose fuel and turns off. We have changed fuel pump x3, fuel filter, and relay and is still dying. Before the engine would turn off and would be able to restart, now the engine turns off and will not start till 3-4 hours later. What may be causing this? HELP!
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Monday, March 30th, 2009 AT 8:49 PM

4 Replies

Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,896 POSTS
When it shuts down, is it still getting fuel and spark? Has the check engine light come on?

Let me know.
Joe
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Sunday, April 5th, 2009 AT 6:27 PM
Tiny
JCOPELIN
  • MEMBER
  • 2 POSTS
My suburban has been doing the same thing. It was doing it intermitantly and I thought it was my fuel pump so I changed that. It still does it. But I noticed this time that when I turn the key the dash lights dont always come on (warning lites: check engine abs etc) and I dont hear the fuel pump prime. When the dash lites do come on the fuel will prime and the car will start
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Wednesday, April 15th, 2009 AT 11:17 AM
Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,896 POSTS
Hi:
Have you checked the ignition switch?
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Thursday, April 16th, 2009 AT 8:11 PM
Tiny
JCOPELIN
  • MEMBER
  • 2 POSTS
I just changed the ignition switch and it is doing the same thing. Could it be the actual ignition lock cylinder?
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Sunday, April 19th, 2009 AT 3:33 PM

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