Last post on Nov 29, 2013 at 2:00 PM
You are in the Chevrolet Silverado & GMC Sierra
What is this discussion about?
Chevrolet Silverado 1500, Chevrolet Silverado 2500, Chevrolet Silverado 3500, GMC Sierra 1500, GMC Sierra 2500, GMC Sierra 3500, Heating / Cooling, Truck
#97 of 376 Re: dual temp control problem on chevy silverado 1500 [mikeinstl]
Jan 04, 2008 (3:59 pm)
I was having the same problem with my 2004 2500 Silverado and the dealer replaced the controller along with a modulating valve. I was told the controller was not sending the signal to the valve. Then after the controller was sending the signal the valve was not responding. This is working normal however I have an interment problem sometimes un-commanded hot or cold air starts coming from one side vents only. Going back to the dealer next week.
#98 of 376 Re: More Silverado AC problems [si1vead0]
Jan 05, 2008 (5:51 pm)
Thanks for the info. I knew something had to be leaking somewhere, and I couldn't find it just looking under the hood or in the cab. It might just be worth a $100 bucks or so to have the dealer take it apart.
What gets me is, there seems to be a lot of people with this particular problem. But if you take it to a dealer, they act like they've never heard of it! Thanks again for your help.
#99 of 376 2000 Sierra 2500 Heater Core "Connector?"
Jan 22, 2008 (4:31 am)
A plastic or some type of composite sleeve has broken on end of the heater core where the hose connects.
I have been unable to find out from dealers or part stores whether or not this piece is actually a part of the heater core or if this is something that can be purchased separately. Actually I haven't found anyone yet that is familiar with this piece.
Would you happen to know what this is called,? and whether it can be purchased separately or if it is actually a part of the heater core?
#100 of 376 Re: 2000 Sierra 2500 Heater Core "Connector?" [tmurphy1988]
Jan 22, 2008 (11:41 am)
Are you writing about an off white cylindrical shaped clip that depresses to release the hose from the heater core?
If so it is sold seperately from the heater core.
#101 of 376 Re: Heat all the time [zulala]
Feb 02, 2008 (9:25 am)
ZULALA, I have the same problem in a 2001 -- did you find out what was causing the problem. I would surely appreciate help if you found any.
If I ever turn dial to the hot side - It stays hot "full hot" and will not change... The AC - - everything blows Hot only regardless what I try.
#102 of 376 Re: More Silverado AC problems [cosilverado]
Feb 02, 2008 (9:43 am)
I just wanted to ask if you found an answer to the all hot or nothing you described here.... I have a 2001 that does the same thing.... If you turn the "hot" control - that is all you get - and you can't turn it off. It has done the same, in that, I have shut it down and everything work when I started it up a few minutes later... I have not seen or heard anyone that actually figured out the problem - and surely would appreciate learning what and how to fix it -- if anyone knows.
#103 of 376 Re: More Silverado AC problems [hatslash]
Feb 06, 2008 (5:02 pm)
Good News! I have a 2001 and finally got this one figured out with the help of my local mechanic.(the dealership never could diagnose the problem) The operation of the lower actuator that opens and closes the the blend door was intermittent.When it would stop in an open position the heat from the heater core would continue to pour in and make it unbearable. Shutting off your vehicle would resetw the actuator to it's home position. This also explains why my AC wasn't always cooling efficiently during the summer months. The actuator costs about $65. To access the actuator remove the air box cover underneath the dash and it is located just to the right of the console. Piece of cake! Hope this helps.
#104 of 376 Re: Heater not hot enough [jimor]
Feb 06, 2008 (7:10 pm)
This is a common problem on Chevy and GMC 2000 and on model years. Flushing the entire cooling system will not get to the "Core" of the problem. Try removing the heater hoses and backflush your heater core with a garden hose. Unless it's completely plugged up, which it doesn't sound like, the pressure from the garden hose should be enough to clean it out take care of your problem.
#105 of 376 Re: More Silverado AC problems [wstarnes]
Feb 07, 2008 (9:34 am)
Hi.. I see you got your heat prob. handled on the 2001; does your truck have the auto or manual climate control? Dual side climate control? I have poor, intermittent heat, but is very confusing, with auto and dual climate controls on my 2003.
#106 of 376 Re: More Silverado AC problems [24wick]
Feb 07, 2008 (5:23 pm)
My 2001 is a manual knob for single climate control.