Question about 1991 Chevrolet C/K 2500

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Where do these wires connect?

There is a grey wire and a black with a white trace wire in the engine compartment. What do they attach to? Right now they are attached to a mounting bolt for the thermostat housing.

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  • yadayada
    yadayada May 11, 2010

    get a service manual, no way to know what these wiores do without one.

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  • Master
  • 520 Answers

Leave them there ...they are a ground wire for the engine harness

Posted on Jul 26, 2009

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