Question about GMC Sierra
If the heater blower circuit was not connected to the bypass relays of the remote starter unit, then it will not work. Some lower grade aftermarket remote starters do not have relay bypass for the accessory circuits (heater and A/C) in order to save a buck or two. If it is a factory remote start, then the heater should work.
Posted on Dec 16, 2014
a 6ya expert can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of.(from cars to computers, handyman, and even drones)
click here to download the app (for users in the US for now) and get all the help you need.
Posted on Jan 02, 2017
My 2003 Sierra's blower came on by itself in the garage while I was sleeping and ran the battery completely down. I had to replace the blower switch located under the glove box next to the blower at the bottom of the right corner of the dash. The switch is in front of the blower and held in by two screws. Disconnect the two wire connections. This is a "dealer only" part and cost me 65.00. Also check the wire harness with seven wires connected to it for melted plastic. It will be marked "ABCDEFG". If it has melted, you'll need to replace it. Pay attention when reinstalling either part, that the wires "ABCDEFG" match the switch in that order.
Posted on Jan 17, 2009
your heat/cool and vent selection options are controlled by engine vacuum through small clear tubes attached to the rear of your climate control interface. Other vehicles have small steel pull wires that operate the desired changes. You might try removing the trim and any fasteners affiliated with the interface/console. GENTLY pull outward and look to see if any of these tubes are pulled off or cut/damaged. Did anyone recently install a new stereo in the vehicle? If so, the vacuum tubing and or pull wires that change your outlets could have been damaged when the stereo unit was pushed into place. Hope this helps
Posted on Sep 09, 2009
Testimonial: "Very good information. THANKS!"
you have a couple of problems first of all your drivers sd=ide heated heat pad is probably faulty, for your heating problem you may have to get the hvac doors recalibrated.
Posted on Oct 05, 2009
Defrost is the default position. Is the control a autyomatic temperture control unit? ( you set the temp and select automatic) if it is the system is completely electronic. You push the buttons and the control still says defrost or can you select something else and the control shows it but it just keeps coming out the defrost? If the control changes and the air comes out the defrost anyway and the cheack engine light isn't on, then the problem can be blown fuses or an air door actoater not working. Does the dash emit a clicking sound? if it does with the covers off the bottom of the dash reach around touching the different pieces till you touch the idem that is clicking. this is an acutor motor, or blend door motor. they have gears in them that wear out and break the motors aren't repairable and you just replace the ofending motor. the door that is moves can be stuck. and may have to be freed up with blaster, WD40, or other rust buster till it moves easy. maybe after getting the door to move smoothly you can get the old motor to move the door wiithout having to install a new one.
Posted on Jan 06, 2010
Tips for a great answer:
Feb 04, 2016 | 1997 GMC Sierra
Jan 25, 2016 | GMC Cars & Trucks
Jul 21, 2014 | 2011 GMC Terrain SLT1
Oct 04, 2011 | 2002 GMC Sierra 1500HD
Jul 18, 2011 | 2005 GMC Sierra
Mar 06, 2010 | 2003 GMC Sierra 1500
Nov 29, 2009 | 2002 GMC Sierra
Dec 19, 2008 | 1994 GMC Sierra
58 people viewed this question
Usually answered in minutes!
Step 2: Please assign your manual to a product: