Question about Chevrolet Tahoe
If it keeps coming back as a specific misfire, it is not a leak. The coil insulator(rubber boot on the coil to the plug) should be checked for white markings which indicate tracking and electrical leaks. Now that I think about it, that could be what they meant. Check the spark plug for cracks in the porcelin. If it is not an AC Delco plug, chenge them all. Inferior plugs WILL cause a misfire code to trigger even if the engine is running great. This is something I have dealt with several dozen and experimented with. It is almost 100%! The only other thing that will cause this without it being internal engine components is a faulty injector. The coil and injector may be tested at your local parts store for free. Call them first to make sure. This is a code for just the number 1 cylinder. Inspect there first and let me know. Number 1 cylinder is the first one on the driver's side of the engine. 1, 3, 5, & 7. Even numbers on the passenger side.
Posted on Aug 29, 2010
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Posted on Jan 02, 2017
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