Question about 1997 GMC Sierra

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97 GMC 1500 radio worked fine and recently stopped. Radio will only work when truck is turned off. Volume will not work either. All fuses are good and wiring to the radio is good after testing. Should I replace the radio or check the ignition switch for replacement?

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Radio's do fail if the radio and nothing ells is wrong you can replace the radio. buttons stopping working on the radio is a good sign there is a problem with the radio and nothing ells is wrong with the wiring. it may have over heated some time ago and has been working on borrowed time from the other components in the radio. now working with the engine running is down to there is more volts running into the radio with the engine running . no engine running it will have a steady 12v around. but with engine running it would be around 14v or just under. would replace radio one from same year as yours or same radio code type. hope this helps you

Posted on Feb 16, 2014

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Posted on Jan 02, 2017

  • 51 Answers

SOURCE: replacing factory radio

With that year vehicle it is recommended that you use a special harness because it has an factory amp and in order to get the proper wiring it requires the harness also if you don't use the harness you will loose your onstar and vehicle chimes and warning sounds.

Posted on Oct 08, 2008

  • 59 Answers

SOURCE: 1997 GMC Sierra Ignition Switch Replacement

take off the cover on the top and bottom of the steering column just behind the wheel. pop the tilt lever out simply just by grabbing it and give it a good tug. then once you have the new switch and you get in there your going to need an inverted torx socket to remove the small bolts that hold the switch to the column. do not move the gear on the new switch make sure it lines up exactly as the old one did!!!!!!!!!!!!

Posted on Mar 15, 2009

jmgldsmth
  • 1869 Answers

SOURCE: brake lights on GMC truck do not work replaced fuses & bulbs

ther is a switch called a brake lifgt switch that has a pin that is moved by your boot brake pedal arm.
the way it works is: when you press on the brake the brake pedal moves down and the spring in the switch pushes out closing the contacts to your brake lights the switch is located high up under the driver's side of the underside of the dash near or, on the brake pedal support replace or, adjust this switch

Posted on Apr 24, 2009

  • 1 Answer

SOURCE: 1997 GMC Jimmy sometimes will not start

I had a similar problem several years ago on my 97 Jimmy. There is a switch in the steering column that had gone bad, had to be replaced and no problem since. The symptons sounded just like yours. My trusted mechanic found the problem after a lot of testing and fixed it.

Posted on Jun 30, 2009

  • 9 Answers

SOURCE: I have a 2003 GMC Sierra 1500 and it has a factory

bro the factory radios are bunk i had the same problem on my 02. replaced it with aftermarket and couldnt be happier

Posted on Jul 02, 2009

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