2003 Chevy Silverado, heater motor runs after ignition is off

Asked by Feb 08, 2014 at 11:11 PM about the 2003 Chevrolet Silverado 2500HD 4 Dr LS 4WD Crew Cab SB HD

Question type: Maintenance & Repair

1 Answer

74,155

In the underhood fuse box there's a relay marked "blower". Try tapping it with the handle end of a screwdriver. It's probably stuck on. This would allow the fan to run even with the ignition off. I'd suggest replacing it. HTH. -Jim

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