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1988 Chevrolet R30 Silverado 5.7L Hesitation, Misfire
Posted to GM Driveability on 9/12/2012 38 Replies

This 1988 c30 5.7L will backfire when warm on acceleration over half throttle.Most in 2nd and 3rd gear(4 speed with Granny Low) Has new cap and rotor. Have tried new ignition coil, unplugged E.G.R., ran in by-pass mode(set timing connector unplugged)which made...

FIX posted 9/17/2012

38 Replies Received (View Replies)

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car Vehicle Data

1988 Chevrolet R30 Silverado

Engine5.7 L / 8 cyl / GAS
Trans4-speed Standard
DeliveryFuel Injection / T.B.I.
SymptomsHesitation, Misfire