2004 GMC envoy 4.2L battery drain over night from 12.03 to 12.00 will the above charging voltage acceptable limit cause battery to drain over night or voltage drop how do i fix this problem? i clean the battery cables.
The answer usually lies with the voltage regulator on the alternator that limits output when 14.4 v is reached.
SOURCE: battery removal on a 2004 GMC Envoy
The battery is on the right side behind the fuse box. You need a metric set to undo the 3 screws. Theres one that attaches to the body, one to the bar that goes along the top, and theres one on the left side below the vacuum hose and air induction. After you've taken out those three, you should lift the whole thing out(battery and shroud) together. It's hard to take the shroud off before you lift the battery out. After that, you have to pry the shoud off the battery. The two terminals in the back make it hard. Then just go to any auto parts store and they'll give you a new one.
SOURCE: Speedometer on 2004 GMC Envoy not working. It
There is a recall on the panel Cluster... call your dealer and have it checked out.. mention the recall... www.lemonauto.com
SOURCE: I have a 2004 Gmc Envoy putting out a code of 0128
It means the car has not reached operating temp. The computer wants the engine a certain temp so it can go into "closed loop" where it fine tunes the fuel mix for optimum economy and emissions. If it cannot reach that temp it sets that code. You either have a low coolant level or a stuck open/missing thermostat.
SOURCE: 2004 GMC Envoy with a P0526 sensor problem
This code indicates a problem with the fan clutch, the speed it is running is not the speed it was commanded to run/ The fan clutch assembly needs replacing.
SOURCE: PO606 in 2004 GMC
PCM Processor Fault. A couple of things, check the wiring around the PCM, check for frays in the wiring. There is a Technical Service Bulletin for this problem also, where your pcm would need to be re-flashed (computer update) by the dealer, I believe it's around $100 to do this.
You can also try to disconnect the battery for 30 minutes or so to reset the computer. Some people have just cleared the code by doing this (or with a code reader) and the code never showed back up again.
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