Quote:
Originally Posted by chickdr
If a coil was bad/semi-bad would it correct itself by just taking a drive and shutting off the engine? I thought coils either work, or don't. No misses/stumbling with my motor either, just a lot of vibration felt through the wheel/shift knob/clutch which magically resolves after it warms up then is shut down and restarted.
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No, its not always a complete failure.
I have had them come & go on other cars.
Symptoms were very similar to this situation, except I wouldn't describe it as a vibration.
The car would run rough with reduced power.
If power is still normal, then coil packs wouldn't be my 1st guess.
I have noted that you can get
vibrations that go away as things heat up expand, such as exhaust, heat shields etc.
The aluminum shield below the xpipe is a prime source for vibrations.