Question about 1999 GMC Yukon
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Posted on Jan 02, 2017
SOURCE: when at idle shaking and
the rotten egg smell indicates the truck is running very rich which will cause it to shake at idle.you need to have it put on a scan tool to see what the readings which will help to diagnose faster.you could have too much fuel supply because of an injector problem a plug not firing,plug wire,problem with the pcm,too much fuel pressure in the system a sensor sending the wrong information to the pcm.
Posted on May 05, 2011
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