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    vetbob's Avatar
    vetbob Posts: 1, Reputation: 1
    New Member
    		  
    #1

    Apr 2, 2007, 05:48 PM
    Stop Lights on gmc truck
    I have replaced bulbs, switch and fuses. Still no stop lights. What's my problem?

    Thanks, Bob
    ace-tilley's Avatar
    ace-tilley Posts: 3, Reputation: 1
    New Member
    		  
    #2

    Apr 2, 2007, 06:59 PM
    Have you tried to see if your wires for your stop lights have come loose.
    TxGreaseMonkey's Avatar
    TxGreaseMonkey Posts: 16,761, Reputation: 5597
    Uber Member
    		  
    #3

    Apr 2, 2007, 08:31 PM
    Several thoughts:
    . Test all under-dash and under-hood fuses with a test light or multimeter. Here's how:

    https://www.askmehelpdesk.com/cars-t...tml#post252145

    . Check brake light switch adjustment.
    . Remove the bulb, have someone depress the brake pedal, and check for voltage in the brake light connector using a test light. If there's no power, check for an "open" in the circuit.
    waynesworld's Avatar
    waynesworld Posts: 39, Reputation: 3
    Junior Member
    		  
    #4

    Apr 10, 2007, 05:24 PM
    Don't know what year truck it is, but a friend of mine had similar problem on '98 gmc and turned out to be ground wire coming from back of taillight housing-to-frame.
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