Re: heater control gone awry

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Posted by BurbGuy ( on 12:36:36 02/24/14

In Reply to: heater control gone awry posted by Peter

Per service manual for 2002 ...

Electronic control, so electric servo motors. Under the dash. Check your fuses.


: 2000 NBS K1500 LS
: I have had this problem intermittently in the past but I haven't driven the sub much recently so I don't know if this is another incident or now a full time problem.
: The temperature control on the dash for the front heat/ac does not seem to affect the temp. It is always hot. The rear heater control does work for those vents. In the past, I thought it was an electronics issue since turning off the car and back on resovled it but not today. Outside temp in the 20's and I had to crack the windows open for comfort.
: Looking for info on the temp control. Is it electronic or mechanical from the dial on the dash? Are there servo motors or vacuum lines? Do I look under the dash or under the hood? If a vacuum line, would I hear the engine run rough since it is letting in air or at least hear a new "air" noise? What is the troubleshooting protocol?
: All ideas are welcome if anyone is still reading these posts.
: - Peter

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