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1990 Chevy Truck small mis

Tiny
REGGIE337
  • MEMBER
  • 1990 CHEVROLET TRUCK
Engine Performance problem
1990 Chevy Truck V8 Two Wheel Drive Automatic

i have a small mis when idling in park & when I put in drive smooth out, but when I take off there come's the mis again. I change plugs & wires rotor check compression ok about 12000 miles on eng. Just started after I change trans. Had been sitting up about 4 months. Change idle air selnoid was broken tried carb. Cleaner on vaacum hose thinking map sensor but still starts coolant temp. Sensor something not right can some one help.
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Tuesday, December 22nd, 2009 AT 5:07 AM

1 Reply

Tiny
MHPAUTOS
  • MECHANIC
  • 31,937 POSTS
Hi there,

Often this can be a minor problem with a pintail a fuel injector, a poor spray patten will resulting a poor burn and this can be more noticeable at idle, try some fuel system cleaner or have an on car injector service one.

Mark (mhpautos)
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Tuesday, December 22nd, 2009 AT 7:20 AM

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