95' S-10 4.3 CPI "W" spitting and sputtering under

Tiny
AJSPADE
  • MEMBER
  • 1995 CHEVROLET S-10
Hello, I hope you can help I'm at a loss. My 95' S10 has 185,574 miles on a 4.3 CPI W motor. It recently developed a spitting and sputtering when ever you try to accelerate and if you run it long enough it will try to shut down. It has shut down on me twice. The problem doesn't matter if you are just revving it up in park or if driving. First thought was bad gas but changed fuel filter, and cleaned injectors but no change. Then, replaced distributor cap, rotor, spark plugs and wires. Still no change. Took it to a shop and they checked some of the more obvious things like injectors again and finally decided the computer needed replaced. We did that and still no better. They can hook up an external fuel source and it runs fine. I noticed that right after they cleaned the injectors it ran better for about 5 mins. I am really at a loss and it seems the shop I usually deal with is as well. I do know it has an exhaust leak and the catalytic converter is the original, could that have anything to do with it? Any advise would be greatly appreciated.
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Monday, June 4th, 2007 AT 11:34 PM

3 Replies

Tiny
2CARPRO JACK
  • MECHANIC
  • 11,533 POSTS
Hows the fuel pressure? If it isnt up to spec the truck will run poorly and misfire.
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Tuesday, June 5th, 2007 AT 8:20 AM
Tiny
AJSPADE
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  • 6 POSTS
The fuel pressure is fine. I was recently told it could be the spider injector. Does that sound right?
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Tuesday, June 5th, 2007 AT 4:32 PM
Tiny
2CARPRO JACK
  • MECHANIC
  • 11,533 POSTS
Very well could be, they have problems with those
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Tuesday, June 5th, 2007 AT 5:10 PM

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