Question about 1999 GMC Yukon

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WHY WILL MY TRUCK RUN 3 SEC AND THAT IT

THANK IT IN COMEPUTER OR WHERE KEY IS

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It has lost the code for the key or the immoblizer is bad.

Posted on Aug 17, 2014

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Posted on Jan 02, 2017

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Help


I had similar starting problems with my 99 Tahoe. It turned out to be the anti-theft device was malfunctioning and not recognizing the key so it would turn off the fuel pump and eventually the fuel pump went out too. Since having this replaced ($555.00 with parts and labor at the dealership) I have had no more problems at all with my truck and have actually braved taking it on a 6 hour road trip and had no problems with it leaving me stranded. Since that road trip, I have gone on several more and have full confidence that I will no longer have this be an issue.

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