2005 silverado a/c electrical problems
#1
2005 silverado a/c electrical problems
I own a 2005 Silverado with a 5.3L. It is 2wd with ext cab. The A/C will work fine as long as the blower switch is set to 5. The blower works perfectly with no issues. However if the switch is set to 4 or below the compressor will shut off after 10 minutes. To get it to work again I have to pull over, shut the key off and open the door to shut everything off. When I start the truck it works instantly. I completely evacuated the system, put it under a vacuum for a few hours and recharged the system. Could this be the BCM? There are a few other electrical problems, the door chime is very faint, etc.
#4
Oh, yeah. You can bump the wiring on the passenger-side firewall
(with passenger's foot) to jog it for a while.
The wiring harness went- I had to have them go back in,
because they didn't replace it all the first time. Then the
Resistor, climate control panel, and fan motor all went.
But I do long, straight-thru drives to Canada, semi-annually. So
the climate control is blasting away with A/C on high for 16 to 22
hours at a time. Wiring ran over 700$, resistor, CC,and blower,
another 700$. If you just get wiring, and all the other gear done at once,
maybe you can save part of the repeated labor charges, and get
it done for @ 1200$.
On a bright note, aside from normal wear and tear, this truck, new
from the dealer, hasn't had any other remarkable issues.
BTW- the fan high position is the default, when the system starts having issues.
Just leave it turned up high, and manipulate all the other controls, like the A/C
switch, and the temperature control, in order to use the unit. Not ideal but
minimally functional.
(with passenger's foot) to jog it for a while.
The wiring harness went- I had to have them go back in,
because they didn't replace it all the first time. Then the
Resistor, climate control panel, and fan motor all went.
But I do long, straight-thru drives to Canada, semi-annually. So
the climate control is blasting away with A/C on high for 16 to 22
hours at a time. Wiring ran over 700$, resistor, CC,and blower,
another 700$. If you just get wiring, and all the other gear done at once,
maybe you can save part of the repeated labor charges, and get
it done for @ 1200$.
On a bright note, aside from normal wear and tear, this truck, new
from the dealer, hasn't had any other remarkable issues.
BTW- the fan high position is the default, when the system starts having issues.
Just leave it turned up high, and manipulate all the other controls, like the A/C
switch, and the temperature control, in order to use the unit. Not ideal but
minimally functional.
Last edited by therewolf; August 28th, 2013 at 8:46 AM.
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