99 GMC 5.7

Asked by Jan 27, 2018 at 04:34 PM

Question type: Maintenance & Repair

99 GMC Seirra pickup will not start or
run with #3 sparkplug in proper
position, but will run roughly with #3
spark plug wire removed.

3 Answers

7,685

check the distributor cap and rotor , it does not make sense

1 people found this helpful.

Changed distributor cap, rotery botton, plugs and plug wires..has not run out of oil or overheated. No antifreeze leaks known..and no oil on plug wire.

Changed distributor cap, rotery botton, plugs and plug wires..has not run out of oil or overheated. No antifreeze leaks known..and no oil on plug.

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