Question about GMC Cars & Trucks
Where is the backup light switch located
Posted by Anonymous on
Trying tolocate the back up light switch on my 99 gmc jimmy. there is a switc similar to a normal switch on the front axle housing with a small cable going inin it. Im thinking thats for the 4 wheel drive not a back up switch. Im wondering if it is in the shifter inside the truck under the center console. if anyone has feed back or an answer it would be much appreciated im at wits end tryin to correct the problem and need back up lights it not a good situation when backing out of a spot at the store.
Posted on Mar 10, 2013
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Posted on Jan 02, 2017
It's on your fuel injection rail BELOW the upper intake manifold. The upper intake manifold MUST come off first.
Posted on Aug 01, 2008
SOURCE: brake light switch
In the 04 models there has been a recall on a part in the brake lights. You can look it up and it gives you a number to call GMC. If you truck is one of the affected models they will replace it for you.
Posted on Jan 28, 2009
I had the same problem. My backup lights wouldn't come on in when I put the auto. trans. shifter into the Reverse position. They WOULD come on briefly as I moved the shifter from Park position into Reverse, but would go off again when the shifter reached the Reverse detent. I got the solution from the Haynes service manual, in which the relevant switch is referred to as something like the neutral safety switch. Check on top of the steering column close to the firewall. Set the parking brake, then move the auto. trans. shifter into Neutral position. Get under the dash and rotate the neutral safety switch clockwise as far as it will go. Then move the shifter into the Park position, and your switch should be set. If the backup lights don't come on now when the shifter is put into Reverse position with the ignition switch 'on', there may be another problem.
Posted on Mar 08, 2009
fuel filter is located on the drivers side behind the rear quarter panel .
thanks and plse do not forget to accept the solution
Posted on Apr 03, 2009
The a/c clutch is attached to the front of your a/c compressor. It is the part that your serpentine belt runs on. It is either engaged or not based on the demand of the a/c system. It will not run if it senses low pressure in the freon supply line so you might try having the system checked for proper fill before replacing the clutch.
Posted on May 29, 2009
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I had the same problem with my 1999 Silverado which would blink several times on the mode I selected then go back to the 2 wheel High. I found the switch module to be defective, after replacing it I have never had the problem again.
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