|
|
Heater comes on while driving
|
|
|
| |
|
|
garysager
New User
Aug 7, 2009, 12:37 AM
Post #1 of 2
(1221 views)
|
|
Heater comes on while driving
|
Sign In
|
|
I drive a 2004 GMC Sierra 1500 with 92,000miles on it. The heater comes on while driving even if the AC is on. I have to turn the engine off and restart the engine in order to get the heater to turn off. What can be the problem?
|
|
| |
|
|
Hammer Time
Ultimate Carjunky
/ Moderator
Aug 7, 2009, 1:20 AM
Post #2 of 2
(1218 views)
|
|
Re: Heater comes on while driving
|
Sign In
|
|
The heat in that vehicle is controlled by a blend door that regulates heated air flow. it is operated by an electric motor/actuator. The problem can be that the actuator is stripped or inoperative or the door itself could be damaged.
In this case you could also have a problem with the control head that6 sends all the commands to the actuator.
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.
|
|
| |
|
Auto Repair Home
SEARCH
WHO'S 
LOG 