Question about 1999 GMC Yukon

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I have a 1999 yukon it cranks up and runs but just shuts off while driving but cranks back up and sometimes i can drive it all day no problem next morning shuts off on me twice but starts again and I can drive it the rest of the day but it has done this 5 times in the last 4 days

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That could be a number of things. A mechanic would have to keep the vehicle until the problem came up again to diagnose it.
But when I would have a vehicle that did what you described, one of the more common things I have found is that the vehicle had an alarm and the alarm was faulty. The alarm would not even have to be used. Just being intergrated into the system was enough for it to cause this type of issue.

Is the service engine light on? If so, take it to an auto part store and most will hook up a code reader for free.
Also may not hurt to have the ignition module tested. Around here, Auto Zones have a machine that does it. Its a free service they provide.

Posted on Oct 11, 2011


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