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also is there anyway i can get the front brake pads to last more then year? I wish gm would test everything in the car before they sell them.
Install good rotors, not Chinese, and good pads.
The problem is fixed! The problem may resurface in 3-4 years, as new rust/corrosion forms on the contacts, but it is so easy to fix again! No need to replace the control unit.
Here's what I was thinking this time though. Each time I take the controller apart, I become more and more skeptical that the problem lies deep inside the unit. There is NEVER any dust or dirt, and the contacts are basically in the same condition I left them.
I'm wondering it the simple act of disconnecting the unit from the car's 12v power is enough to "fix" the problem. That is, de-powering the unit maybe causes a reset in its circuits. If you could somehow get at the unit from behind and disconnect just the power, maybe you wouldn't have to go to the hassle of removing it entirely.
Any thoughts?
Also for a while, the AC was always on; even when the blower was in the off position
forgot to add that I have a 2004 malibu classic
http://www.imcool.com/articles/aircondition/AC_ControllersAreRepairable.pdf
Thanks
Dave
and I would like to know how to take that control panel out. I have been led to believe the whole dash-panel has to be removed, and I don't feel like going that far. I can't believe they were that stupid as to make it that unaccessable.
Sugestions please!!!!!
I removed the a/c relay and by connecting the relay contacts together with paper clips, the a/c compressor will turn on and work (can't very well control the a/c with paper clips all summer!) From the electrical diagrams that I have looked at, it appears that the Body Control Module (BCM) is not sending a signal to the a/c relay.
Has anyone had any experience with this? BTW, all fuses are good.
Any and all advice is welcome. Thanks
Also are the pressure sensors working properly.
Thanks,
Struggling Farmer
You said the fuses are all good, did you check to see if they were getting power with key on.
If the pressure switch is not sending a go signal to the BCM, it won't turn on the ac.
The a/c charge is normal and all the sensors are (currently) functioning correctly. Sure makes troubleshooting difficult when everything is working!
Does anyone have a suggestion as to what scan tool (besides a GM Tech II) is best for using on troubleshooting? I currently have an Actron model CP9180 which works fine for reading and clearing codes, but not for reading variables from the modules (I have experience using the GM Tech II, but cannot afford one).
Thanks for the info and I will post more if/when I learn more.
Farmer
the other way to avoid condensation...and it honestly shouldnt be that much..is to run the heater once a week or so...and burn off all the condensation in the system during the summer....
Did you resolve your intermittent a/c & rear defroster issues? I have a 2003 Malibu and have been experiencing the intermittent a/c compressor & recirculation since the extended warranty expired in 2007. I believe that you and I have a flakey BCM module in our Malibus. Let me know what you come up with.
Maddog
This works perfectly well... 2004 Malibu, 1 hour, pry tools to remove the front bezel, 2 torqs screws, and the climate control unit pops out. Took it inside, tore it down to the control board, Went over all the contacts with a pencil eraser, then washed it all down with Electrical contact cleaner. I took the 2 dials apart, cleaned all contacts, and replace the grease.
My GF was going to have the dealer do it for $150 in parts + Labor.