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1999 Chevy Silverado starting

Tiny
PGCARVER
  • MEMBER
  • 1999 CHEVROLET SILVERADO
  • V8
  • 2WD
  • AUTOMATIC
  • 92,000 MILES
Suddenly my engine only cranks w/o starting. I can release the key, push the gas pedal once, turn the key to start and then the engine starts as usual. Is this a TPS problem or what?
Saturday, April 25th, 2009 AT 1:45 PM

9 Replies

Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 108,192 POSTS
Ha the check engine light come on? If not, it sounds more like a fuel pressure problem. Let me know about the light.
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Sunday, April 26th, 2009 AT 12:06 PM
Tiny
PGCARVER
  • MEMBER
  • 3 POSTS
No check engine light. I replaced the fuel filter, which was clogged, but not stopped up completely. This made no difference in the problem. Ran a can of Seafoam through the fuel system. No difference.
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Sunday, April 26th, 2009 AT 5:10 PM
Tiny
PGCARVER
  • MEMBER
  • 3 POSTS
I do have a fuel pressure tester. Guess I should try that to eliminate pressure problem.
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Sunday, April 26th, 2009 AT 5:12 PM
Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 108,192 POSTS
If you have the tester, most likely you know how to use it. Here is a how to video if you need help.

https://www.2carpros.com/dia/test_fuel_pressure.htm

Let me know what you find. Also, pay attention to how quickly the pressure bleeds off.
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Sunday, April 26th, 2009 AT 8:09 PM
Tiny
SNOBRDRPRO
  • MEMBER
  • 55 POSTS
I have this same problem, and the pressure bleeds off really fast when I turn the motor off. Is this the pressure regulator? I have changed the pump and filter.
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Monday, April 27th, 2009 AT 9:34 PM
Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 108,192 POSTS
When checking the pressure, pinch off the rubber hose to determine if the loss if at the injectors or before the fuel rail.
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Monday, April 27th, 2009 AT 11:13 PM
Tiny
SNOBRDRPRO
  • MEMBER
  • 55 POSTS
Which hose should I pinch off? The top or the bottom one? And should I let the engine run while I do this?
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Tuesday, April 28th, 2009 AT 7:15 PM
Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 108,192 POSTS
The supply
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Tuesday, April 28th, 2009 AT 8:10 PM
Tiny
SNOBRDRPRO
  • MEMBER
  • 55 POSTS
I cut off the supply line and it still bled off to zero
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Friday, May 1st, 2009 AT 7:52 PM

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