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I have a 1999 GMC Sierra.. when I start the truck and take off..approx 15 mph it starts dinging like your getting out with the headlights on,,the only other thing is the headlights are not coming on automatically

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  • Cars & Trucks Master
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In order to see what is causing this you must have the Body Control module that controls the systems and the ding scanned with a GM Tech2 scanner. It can be allot of thing that are causing this the scanner will id it very quickly

Posted on Nov 07, 2012

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6ya6ya
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Posted on Jan 02, 2017

  • 99 Answers

SOURCE: truck latch on 1999 gmc sierra

look under the latch and see if you see a metal rod. if you do, pull the rod and it should open.

Posted on Jan 24, 2009

  • 1 Answer

SOURCE: 2002 gmc sierra truck won't start replaced filter

truck turns over for a few seconds then just spins

Posted on Feb 07, 2009

emissionwiz
  • 75822 Answers

SOURCE: Truck won't start right away when its hot.

U MAY HAVE A DEFECTIVE ENGINE COOLANT TEMP (ECT) SENSOR, U NEED A SCAN TOOL TO TEST THIS PART, THIS IS NOT THE SENDER FOR THE TEMP GUAGE THIS IS THE SENSOR THAT TELLS THE FUEL INJECTION COMPUTER HOW COLD OR HOT THE ENGINE IS, IF IT READS LOW THE SYSTEM WILL GET TO MUCH FUEL AND CAUSE A HARD START, DO U NOTICE ANY BLACK SMOKE WHEN IT FINALLY STARTS?

Posted on Feb 09, 2009

  • 148 Answers

SOURCE: 96 gmc sierra hard to crank after 12-14 hours

that has a votec engine in it the fuel pressure is droping at knight and it takes 60 psi before the injectors will fire most likely cause fuel pump ,leaking injector ,or a feul pressure regulator

Posted on Jul 14, 2009

  • 432 Answers

SOURCE: 1999 GMC Sierra truck tailgate release latches are

If you remove the ring around the handle you will get a better view of the two rods that connect the handle to the outter latches.The ring just snaps in.I think a flat head screw driver from the bottom works the best.Once you have access to the rods you can push the inward twords each other to pop the gate.If the are broken out twords the tail lights then a thin flat head in the gap betwen the tail lights and tail gate should be able to push the spring loaded latches in to pop the gate,but you may need to borrow a extra set of hands.Well hope this helps.

Posted on Feb 06, 2010

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