A/c Issue

Rosedog · May 16, 2007

For the past few weeks it has been nice and warm outside so I went to use my A/C and I quickly noticed that my driver side seemed to be stuck on heat vs. the passenger side that blows ice cold air. I played with the switch (up and down) and nothing changed for the driver side. I did noticed that after turning the ignition off and waiting a few minutes that the A/C would start coming out on the driver side but a few minutes later it would switch back to heat.

I pulled the A/C-Heat control out just to make sure the wires were pushed up on the connection/plug and the A/C seemed to be fine for awhile. Then this week the drive side started blowing regular vent air vs. A/C again. Could my control unit be bad?

basic extended cab 4.8 03 1500 silverado.

Thanks in advanced.

PPillow · August 23, 2007

Unfortunately I won't be much help to you. My truck is having the same problem. Seems like the driver's side kicked out like this before and I cycled the switch and brought the cold back. Also the bulb is out on the driver's side. Passenger side is blowing cold so compressor has to be working...right?? I plan on pulling the HVAC control out and checking/replacing it. Advice would be greatly appreciated!

I've enjoyed the posts on this site. This week the A/C problem and ABS EBCM goes out at the same time.

txskunk · August 27, 2007

Same here. I couldn't get it to go back to cooling, so I disconnected the battery for a few minutes and reconnected it. Worked fine after that, but it's only been one day.

fisheye290 · August 27, 2007

I too am having this problem. I am thinking it is the A/C Blend door actuator. I have no idea on how to get to it to replace though.

ashleyrihner · August 27, 2007

Unfortunately - I do not know the answer to your question. I, too, am having a/c problems with my 2001 Tahoe.

*** Answered to meet 5 reply thread so that I may post a question ***

Rosedog · November 9, 2007

Unfortunately - I do not know the answer to your question. I, too, am having a/c problems with my 2001 Tahoe.

*** Answered to meet 5 reply thread so that I may post a question ***

I'm soo late in answering this, I had to take it to the dealer, it was a bad switch.

88m53453 · December 2, 2007

my 05 Sierra does the same thing......

atboley · December 4, 2007

somthing is wrong there, im sure they replaced the temp door actuator... the controllers never never never ever cause that problem!!!!!!! it was the actuator, im sure... or they miss diagnosed it and it isnt really fixed and might happen again later, good luck