even though plugs were changed, still misses/hesitates...suggestions?

205

Asked by Oct 04, 2013 at 10:00 AM about the 2002 Pontiac Grand Prix GT Coupe

Question type: Maintenance & Repair

even though plugs were changed, still misses/hesitates...suggestions?

3 Answers

236,765

Could be a coil, vacuum leak, dirty fuel injectors, etc. But it's probably one or some of your plug wires. You should have replaced those when you did the plugs.

1 out of 1 people think this is helpful.
205

the plugs wires changed 1wk ago, still doin it. compression test? crankshaft position sensor?

7,015

check out ignition module & coil pack (distributorless ignition) ..is there alot of rough idle?

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