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Running bad

Tiny
DADDYOFZAKK
  • MEMBER
  • CHEVROLET ASTRO
I have a 1991 chevy 1500 350 engine 189,000 miles it had a miss to it when the motor warms up and when you come to a stop it runs real rough. Somtimes it runs great all day then sometimes it's real bad I changed the coil, plugs, cap, button. Wires. Did not help at all it has hardley no power and now its starting to smell like raw fuel.I done a compression test I had 5, at 180, 2, at, 155, and 1, at, 135 I can not figure it out because of the run good somtimes run bad other times so please help. Thank you in advance for your time
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Monday, October 22nd, 2007 AT 6:28 PM

1 Reply

Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Your compressions don't look right-However you can try cleaning out idle air control valve and the EGR.

Also check what's happening with the fuel system by doing a fuel pressure test with gauge.

There's a lot that can cause your problem

Intermittent problems can be the worst nightmare to deal with.
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Monday, October 22nd, 2007 AT 7:27 PM

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