Question about 1999 GMC Sonoma

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I have a 1999 gmc sonoma 4cyl 2.2l. While driving on the freeway it looks like my truck turns off for a split second. All the lights in the dash and all the guages reset as if starting the truck for first time. Battery is good. Alternator is ok. My mechanic friend thinks its the ground strap. any help?

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  • fadedflaker Sep 06, 2010

    I forgot to mention we know one ground on the ground strap isnt ground. Where would i begin to figure out where it belongs?

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Your friend could be right, bad grounds can cause all kinds of electrical problems. Chech battery to motor and battery to body ground. Also check motor to body ground strap for corrosion under mounting bolts. It may not be visble until you remove the bolt. Good luck

Posted on Sep 06, 2010

  • lynnh001 Sep 07, 2010

    The ground strap should bolt to the engine block and to the frame usually on the passenger side. You can bolt the strap to any bolt on the frame or motor as long as it is clean from rust and corrosion.

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