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Originally Posted by buickmastermind
Same thing I stated above about the coils. You also might want to make sure the battery has the correct voltage when cold. When it runs, is it smooth, or does the motor vibrate?
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Sorry about the double post!!
Although I haven't actually measured I beleive the battery voltage is good when cold, I will test. When the vehicle runs it runs smooth. The only times it ran rough I was able to replace plugs or wires to correct. One note, it doesn't seem to take long after replacing the plugs that I need to replace again (6 months). The old plugs look fine but there will be a noticable improvment in how the car runs. I also seem to have replaced faulty ignition wires before they should have needed to. Having said that, replacing plugs and wires have never made the car start any better when cold. I've had this sypmtom for 5-6 years at least, just seems to have to be less and less cold for the car not to start.
When you talk about the ignition coil you are refering to just the coils and/or the ignition module?
Thanks