1991 CHEVY S-10 S10 NO POWER GOING DOWN THE ROAD. IDLES FIN

  • Tiny
  • opie_
  • 1991 Chevrolet S-10

Engine Performance problem
1991 Chevy S-10 Two Wheel Drive Manual 140000 miles

i have a 2.8L s10 5 speed. Has new plugs, wires and distributer cap. I recently changed the fuel filter and alternator. When idling it seeems to run fine (runs smooth n does not seem to miss at all) n seems 2 have a lot of power when revved, but when put in gear it does not seem 2 have the acceleration it should. When I make it to 60 (which sometimes takes a while) it loses power goin up hills n slows down. I usually have to drop it in 4th to speed back up then go back to 5th. Ive been told a few different things that could be wrong. What do u think? Thank you

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Wednesday, January 27th, 2010 AT 11:01 AM

6 Replies

  • Tiny
  • Docfixit
  • Expert
  • 18,991 posts

Have you checked fuel pressure? Check spark is it blue/white spark?

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Wednesday, January 27th, 2010 AT 11:06 AM
  • Tiny
  • opie_
  • Member

No I havent ckecked those. How do I check fuel pressure n what will I need?

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Wednesday, January 27th, 2010 AT 11:47 AM
  • Tiny
  • Docfixit
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  • 18,991 posts

Need pressure guage should be 9-13 psi

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Wednesday, January 27th, 2010 AT 11:58 AM
  • Tiny
  • opie_
  • Member

Ok. Where on the vehicle do I check the fuel pressure at?

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Wednesday, January 27th, 2010 AT 12:03 PM
  • Tiny
  • Docfixit
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  • 18,991 posts

Just ahead of fuel filter seperate steel fuel line from flex line install gague

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Thursday, January 28th, 2010 AT 8:19 AM
  • Tiny
  • kristingabriellini
  • Member

My S-10 (5 speed extended cab 1997 is missing the wiring that runs from the alternator to the engine I need a diagram of how to rewire properly can anyone help me?

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Wednesday, October 10th, 2012 AT 1:16 AM

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