2004 GMC Sierra - Answered Questions & Fixed issues
2005 GMC Sierra Denali - Installed new battery; driver a/c hot
need to go to dealer to have HVAC module reprogramed. whenever diconnecting battery power on these vehicles you can connect a 9 volt battery between neg and pos to keep the memory in the computers. I am an master ase technician and 5 classes from gm world class tech.
9/30/2018 3:56:37 AM •
2004 GMC Sierra
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Answered
on Sep 30, 2018
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822 views
GMC 2004 Sierra conditioner makes Darth Vader noises
I'm not sure if I understand you correctly. Does the air conditioning works properly it's just the sound problem and did it happens suddenly?
For the strange sound, it could be normal and not.
I imagine the sound comes from the exchange pressure between the low pressure and high pressure.
To fix or knowing what is wrong you will have to get AC/pressure gauge install on AC/pressure tap under the hood and sync the compressor engaging clutch if it happens at the same time that the sound you are talking about.
Pretty hard to tell online without earing it. But I ever listen to a sound similar to that.
hope it helps
2/19/2018 6:16:34 AM •
2004 GMC Sierra
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Answered
on Feb 19, 2018
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305 views
04' GMC Sierra quadrasteer, trec fuse 30a blows when trying to engage 4wd. I replace fuse, start truck and 4wd auto is lit up but if I press 2h, 4h, or 4 low it blows. What should I do or look for?
Wild guess here, had a similar problem on my 2000 4x4 blazer, has an electric motor on transfure case to swith it into 2h, 4h, and 4l, would blow the fuse every time when switching, did is to replace the motor. Just confirm your fuse that is blowing feeds that.
10/22/2016 2:18:48 AM •
2004 GMC Sierra
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Answered
on Oct 22, 2016
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660 views
How do you prime a oil pump in a 6.2 gas motor in a 04 gmc pkup
Hello Les, I suggest you install an auxiliary oil pressure gauge to measure the actual oil pressure. Did you inspect the oil pick up tube screen for debris that might restrict the oil from getting to the oil pump? Did you install an oil pump mounting gasket or o-ring if it requires one?
10/30/2015 6:43:05 PM •
2004 GMC Sierra
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Answered
on Oct 30, 2015
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300 views
I own a 2003 GMC
im not certain, but i believe that the gauges are electronic. and when you were working on the radio you may have accidentally touched the wrong wires together shorting out the console. i would check the fuse cor the console.
8/18/2015 2:08:22 PM •
2004 GMC Sierra
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Answered
on Aug 18, 2015
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578 views
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