1990 GMC Sierra

Tiny
KARENP
  • MEMBER
  • 1990 GMC SIERRA
  • V8
  • 2WD
  • AUTOMATIC
1990 Sierra GMC brake light has come on. Brakes seem to be okay, though. We have had this truck since my dad-in-law has passed away in 2005. He was 1st time owner. How can I tell if it is the master cylinder or not? Could it just be the light/needs to be reset? Have called out mechanic, but is out of town. Any help would be great! If it is the parking brake, how would I know? Thanks for your help!
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Thursday, December 30th, 2010 AT 3:31 PM

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Tiny
DOCFIXIT
  • EXPERT
Check fluid level in master cylinder
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Thursday, December 30th, 2010 AT 3:50 PM

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