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2006 Chevrolet Silverado 1500 Question: what is the most likely problem when service 4wd light is on randomly

 

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lesterm, 5.3L V8, Livingston, TN, March 30, 2013, 08:51
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Service 4wd message Diagnostic code CO327 and CO379

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  • Answer #1

    March 30, 2013, 16:46
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     Master

    transfer case may need to be serviced. possible dirty connection. bring to a tranny shop and have them run a diagnostic(more thorough). tranny tech. advise.

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