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1992 Chevy Silverado Stutttering at low engine RPM.

Tiny
WANNAGOFASTER
  • MEMBER
  • 1992 CHEVROLET SILVERADO
  • V8
  • 2WD
  • AUTOMATIC
  • 100,000 MILES
My truck has been having problems with the motor. It will run perfectly whenever I start it up and continues to run perfectly for about 5 minutes or until the motor warms up. Then it begins to hava a terrible stutter at low rpms. The acceleration is terrible. However if I put it to the floor and it gets past the stutter it runs perfect at high rpms. Also if I shut it off and restart it again it runs perfect for about 30 seconds and then goes back to stuttering. Please help, Thank you
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Wednesday, February 4th, 2009 AT 8:00 PM

3 Replies

Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 108,179 POSTS
Hi:
Is the check engine light on? Also, have you checked fuel pump pressure?

Joe
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Wednesday, February 4th, 2009 AT 9:01 PM
Tiny
WANNAGOFASTER
  • MEMBER
  • 8 POSTS
Yes the check engine light is on but no I have not checked the fuel pressure. I don't have the equipment to do that. What I plan on doing is bringing it in to my auto class at school and checking it there.
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Thursday, February 5th, 2009 AT 4:42 PM
Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 108,179 POSTS
Hi:
If the check engine light is on, I would start there. See what codes are set. If nothing works that way, then check the fuel pump pressure. Many parts stores will lend or rent the gauge. And, if you go to the page listed below, there is a video that will show you how to check fuel pressure. It's easy. Check it out.

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

Let me know if this helps or if you have other questions.

Joe
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Thursday, February 5th, 2009 AT 6:55 PM

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