Starting in wet or humid weather

Asked by GuruN546J Nov 21, 2019 at 07:42 PM about the 1999 GMC Yukon SLT 4WD

Question type: Maintenance & Repair

1999 GMC will not start when wet or humid out.

1 Answer

155,275

This is going to be an ignition system problem. I'd suggest a complete tune up. Hope that helps! Jim

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