... most likely your Blend door actuator it controls all the doors. You can also have ecm relearn the controls by having key off and removing ac and heater fuses in the dash fuse box for 5 minutes Also if actuator doesnt help it could be the control in the dash its self both are very easy to change ...
... pretty good, it's a valve that is actuated via vacuum; what it does is when the a/c is turned on and vacuum hits it the valve turns flow to the heater core off and causes the air coming out of the vents to be cooler because any air going through the heater core will not be heated by fresh coolant. ...
... put it back in its place. Also for heating troubles, make sure the coolant is full, do check and or replace thermostat. Also can try flushing the heater core with a garden hose and try to get out some gunky buildup that has no doubt settled in over the years. Good luck.
So i have an 04 Silverado 2500 HD with a 6.0L, It blew the heater hose and over heated. My ole lady was driving it and kept driving it (about .7 miles). It completely cooled off. I filled it back up with antifreeze and drove it to my house from her friends ...
GMC CK Series Trucks HVAC Control Unit Repair AC Delco 15-72548 Heater / AC Control By Gawain Tomlinson San Diego, CA Disclaimer: Any use of the information contained in this document is at the user’s own risk. The author does not assume any liability for ...
Thanks! Seeing how this generation truck has enough electrical issues as it is, I hope it is just the control panel. That would be a sweet easy fix!!!! A semi-related question.....the compass/temp in the rearview mirror works sporatically. As in, it will work when it wants to, and then flash jumbled...
Since your a newbie and building credibility within the site, apology accepted, now let's move forward... If the primary control unit is bad and not relaying proper information to the system, you would get the same results. If I were you, I would possibly go to a junkyard and see if you can pull an ...
While I wasn't trying to "flame" anyone, I suppose it did come across as such and I apologize for that. Does the HVAC system have a sun load sensor or something of the sort? I have had other vehicles with the automatic climate control and they did have something of this nature and if this ...
So far you have broken two of our site guidelines/commandments: The SilveradoSierra.com Commandments For reference: #1 and #3. When I said "Could be the electronics??", that meant it could be anywhere in there. If you want me to be specific, please bring your truck over, I'll be more than ...
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