Question about 1989 GMC Sierra

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1989 GMC Sierra radio, AC, etc. controls only work occasionally. Sometimes the radio will come on, but will not be able to control volume or turn it off. Sometimes the radio, AC, etc. will not come on at all. All controls on the panel only work occasionally.

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My AC does not work and the Compressor will not work and their is no current going to it. The AC Fuse in the fuse box is not blown.

Posted on Jun 25, 2012

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You need to check the grips of the AC and other things . make them tight.. n check fuses. not a big problem.

Posted on Aug 01, 2010


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Why would my 1999 gmc Sierra not be blowing cold air after it was charged up

Most likely the compressor is not turning on, this can be caused by a variety of problems, such as a broken wire to the compressor clutch, a bad ac controller, bad heater valve, etc, etc. etc. Will need more info such as whether or not ac compressor clutch is turning on or not.

Hope I helped,

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I have a 1995 gmc sierra c1500 and the radio in it stopped working. The last time I drove the truck it worked perfectly fine then somebody left my key turned so my battery died. I recharged the battery...

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Aug 25, 2012 | 2003 GMC Sierra 1500

1 Answer

No sound from radio

What type radio? I'd check the speaker wires if applicable but many devices have thermal resets in them that get lazy sometimes. Try powering it up several times to see if it clears. If you have an ohm-meter take a resistance reading across the speaker terminals (isolate is best). Could be an open. While messing with it it is best to keep volume control at about 1/3 for many reasons including protection of output loop and saving ones ears.

More info needed. What device is it?

Jul 22, 2012 | 2000 GMC Sierra

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Weird one! I have a 1989 GMC 1500 which came with the basic radio and bought a stock GM radio from a junk yard. I had the volume turned down low because of a busted speaker and when I went to replace the...

Did you remove the actual radio or just the control head , because the radio itself under the dash on the right hand side of the brake pedal just above the accelerator.

Sep 12, 2011 | 1989 GMC Sierra

2 Answers

I own a 1992 GMC Sierra Pickup still with the factory am/fm radio receiver and the seperate cassette player with graphic equalizer. A few years back it started to fail when turning on and now does work at...

I would say the problem is inside the radio itself. I have no idea if anyone repairs these units anymore or if any good used ones are available.

Apr 10, 2011 | 1992 GMC Sierra

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Want to know it it is possiable to install a aftermarket radio to my 2004 gmc sierra slt cause i was wondering abou the streering wheel volume controls and seek

none of those features will work with any aftermarket radio, the factory unit is a very good system, stick with it.

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2 Answers

1995 GMC Sierra truck

It,s very lcd power wire to ignition swiich...then it will only light up when key is on

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