1992 Chevy Silverado stuttering

Tiny
WANNAGOFASTER
  • MEMBER
  • 1992 CHEVROLET SILVERADO
  • V8
  • 2WD
  • AUTOMATIC
  • 90,000 MILES
My old truck has recently had an issue with stuttering and a loss I performance. When I start it up it runs great but then after a few minutes it starts stuttering very badly, especially at low rpms. If I shut it off and then start it again it runs fine for a few seconds and then goes back to stuttering. Also one thing that is weird is that after it has sat for about a day it takes about 5 seconds of cranking to start but if it has been less than a few hours it starts right away. Any help is greatly appreciated, I would really like to see this thing running good again.
Monday, May 26th, 2008 AT 9:23 PM

8 Replies

Tiny
LEGITIMATE007
  • MECHANIC
  • 5,121 POSTS
I would check fuel pressure and spark, make sure your wires arent arcing against the block. Take a look at them see if they are brittle or need to be replaced. I would do that anyway and take it from there. You would be surprised at what a simple plugs and wires will do. I'll send you a video on how to check spark and fuel pressure.
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Monday, May 26th, 2008 AT 10:05 PM
Tiny
LEGITIMATE007
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Heres your fuel pressure regulator video

https://www.2carpros.com/car_repair_video/test_fuel_injection_pressure.htm
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+1
Monday, May 26th, 2008 AT 10:07 PM
Tiny
LEGITIMATE007
  • MECHANIC
  • 5,121 POSTS
Heres the video on checking spark

https://www.2carpros.com/car_repair_video/test_engine_ignition_system.htm
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Monday, May 26th, 2008 AT 10:08 PM
Tiny
WANNAGOFASTER
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Thanks alot for the advice. Would the spark issue cause my problem to happen every now and then? Im asking this because sometimes I don't have this problem but then the next day it might come back.
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Tuesday, May 27th, 2008 AT 6:44 PM
Tiny
LEGITIMATE007
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Yes it could, could be an issue when car is cold, warm or hot.
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Tuesday, May 27th, 2008 AT 10:29 PM
Tiny
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That makes sense because this very rarely happens when the motot is cold.
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Thursday, May 29th, 2008 AT 7:09 PM
Tiny
LEGITIMATE007
  • MECHANIC
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Awesome, write back if you need anything else
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Friday, May 30th, 2008 AT 7:13 AM
Tiny
WANNAGOFASTER
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  • 8 POSTS
Well I finally replaced the spark plugs and wires and it ran great until it warmed up. Then it went back to stuttering. Any other ideas? Just a refresher, it idles fine, runs fine when going easy on it but then when I give it a bit more gas it sputters terribly and has absolutely no power. If I shut it off and restart it funs good again for a few seconds then goes back.
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Saturday, June 21st, 2008 AT 2:07 PM

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