1989 GMC C2500 Brake switch

1989 GMC C2500
119,000 MILES • V8 • 2WD • AUTOMATIC
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BMELOUN
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How do you adjust the brake switch on a GMC 2500 work truck. It works fine but will not turn the brake lights off unless I lift the brake pedal slightly. It happens 80% of the time. It is not a switch that can be adjusted by loosing a locking nut.
Mar 19, 2009 at 8:16 AM
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MERLIN2021
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STOPLAMP SWITCH Removal & Installation Remove negative battery cable. Disconnect electrical connector at switch and remove switch. Installation is reverse of removal. Adjust switch, see ADJUSTMENT . Adjustment Depress brake pedal. Pull lever at bottom of brake switch back to the stop. Pull brake pedal against stop. © 2008 Mitchell Repair Information Co., LLC.
You might need to remove it, and straighten out the clip...then reinstall it.
Mar 19, 2009 at 8:20 AM