1990 Chevy Truck small mis

1990 CHEVROLET TRUCK
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REGGIE337
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  • 1 POST
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.
Dec 22, 2009 at 5:07 AM
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MHPAUTOS
  • ✓ASE Certified Mechanic
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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)
Dec 22, 2009 at 7:20 AM
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