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2005 Silverdao 2500HD surging


Scott545

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I have a new 2005 Silverdao, 2500HD, 4WD, stick, only 7000 miles. In 4WD low, above 3500 rpms the computer shuts down. Worse, in or out of 4WD, when the truck is cold, it surges pretty badly. The dealership says it has no codes, but acknowledges the computer glitch on the 4WD low is cauisn problems...what is causing the surging?

 

Seems like the accelerator might be the problem..?

 

Scott

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