1991 CHEVY CHEYENNE BRAKE LIGHT FLASHING

  • Tiny
  • geauxtigers
  • 1991 Chevrolet Cheyenne

Computer problem
1991 Chevy Cheyenne 6 cyl Two Wheel Drive Automatic 145000 miles

I have a 1991 Chevy Cheyenne, 4.3 L engine, that has the brake light flashing. Not sure what could be causing this. Is there a computer on this model truck? Is this a diagnostic code or something? It mainly flashes while driving. Thanks for the advice.

Thursday, December 27th, 2007 AT 11:13 PM

1 Answer

  • Tiny
  • mhpautos
  • Expert
  • 29,806 posts

Hi there,

Check the adjustment of the brake light switch, or replace if adjustment is ok.

Mark (mhpautos)

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Friday, December 28th, 2007 AT 4:39 AM

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