1996 4.3 vortec, coding bad coil pack.

Asked by breezy1959 Oct 27, 2017 at 08:30 AM about the 1996 GMC Sonoma 2 Dr SLE 4WD Extended Cab SB

Question type: Maintenance & Repair

Have changed coil pack,plug wires, plugs,cap,rotor. Then went back to taking
three attempts to start,and light came back on, coding bad coil pack. Runs
great once started

6 Answers

breezy1959 answered 6 years ago

Should of said ,it would start shut off ,start shut off then start and run, and run good,but light came on coding coil pack, changed everything listed above, did great for one day, then started all over again,coding coil pack. Once started it runs great,good fuel mileage, 20 to the gallon.

Mark helpful
38,855

beatupchevy answered 6 years ago

check for grounds , motor to chassis ground , ignition module ?, don't know if a bad one would throw that code

Mark helpful

breezy1959 answered 6 years ago

Should of said ,it would start shut off ,start shut off then start and run, and run good,but light came on coding coil pack, changed everything listed above, did great for one day, then started all over again,coding coil pack. Once started it runs great,good fuel mileage, 20 to the gallon.

Mark helpful

Your Answer:

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