1992 Chevy Silverado Stutttering at low engine rpm.

1992 CHEVROLET SILVERADO
100,000 MILES • V8 • 2WD • AUTOMATIC
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WANNAGOFASTER
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  • 8 POSTS
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
Feb 4, 2009 at 12:00 PM
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JACOBANDNICKOLAS
  • ✓Experienced Mechanic
  • 110,248 POSTS
Hi:
Is the check engine light on? Also, have you checked fuel pump pressure?

Joe
Feb 4, 2009 at 1:01 PM
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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.
Feb 5, 2009 at 8:42 AM
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JACOBANDNICKOLAS
  • ✓Experienced Mechanic
  • 110,248 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
Feb 5, 2009 at 10:55 AM
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