Question about 2003 Chevrolet TrailBlazer
Intermittent vibration from engine when idling. sometinmes hardly noticeable better when warm. Service engine light did show bad O2 sensor which was replaced. some improvement but still there. My mechanic also checked motor mounts which were ok. could it be the ignition coils ? would fuel injector cleaner help.
It would not be the ignition coil....injector cleaner could help it, most people add it to the gas to help maintain clean injectors and you should do the same. as far as the coil no leave it alone.
Posted on Feb 19, 2009
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Posted on Jan 02, 2017
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