99 chevy silverado speedometer stuck on 120mph

Vacuum Medic

• 108 Answers
• Posted on Jun 05, 2009

SOURCE: my 99 chevy silverado power window stoped working

This would more than likely NOT be a sensor problem.

In replacing the hinges you more than likely disrupted the wires that run from the cab into the door, causing a ground, pinching a wire or in some way causing no power to get through one of the wires. There is a rubber boot that runs between the door and the cab, pull it back and have someone hold the button in the down position. Then wiggle the wires until the window moves. That truck will have defog mirrors on it more than likeley so there will be plenty of wires to wiggle. When you find the problem wire simply cut the problem area, replace it with an end to end connector (**** connector) and seal it with silicone. If it is not one of the wires, you more than likely had a wire come off inside the door. (depends on how much you horsed it when you were changing those hinges) Thats where i'd start.

Best Of Luck!

SOURCE: My 2004 chevy silverado duramax speedamoter is

there was a recall on this problem

SOURCE: 99 chevy silverado running rough and stalling.

the problem you are discribing would lead me to belive your fuel filter is clogged which is a simple fix 3 dollar part at any part store or on the worse hand your fuel pump itself could be weak you can open the gas tank cover and have another person turn the truck key to the on position without going far enough to start you will hear a faint whining noise if it is going bad or a louder noise if it is fine Good Luck

SOURCE: 05 chevy silverado 1500 speedometer gets stuck

The speedo is run by a stepper motor. GM had major problems with these. They extended the warranty to 7 yrs 80000 miles. If your over the mileage you can order a new stepper motor on e bay for about 6 bucks.