Why is my heater not responding to controls, and staying on when the truck is off?

2006 GMC SIERRA
70,000 MILES
Avatar
FORESTWORKER
  • MEMBER
  • 1 POST
I first noticed the blower motor (?) staying on when the truck is turned off, even if I turn off the heater before turning off the truck. This has started to kill the battery. Also, the blower is not turning up when the fan controll is turned up. Is this an easy fix, or a shop issue?
Nov 2, 2011 at 9:42 PM
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.
Advertisement