BACK BRAKES ARE GRABBING BEFORE CAR STOPS

  • Tiny
  • ajblocton
  • 1986 Mercury Marquis
  • 300,000 miles

My 1986 mercury grand marquis, would this be a brake pressure differential valve causing the problem? Rear brakes grabbing when stopping

Wednesday, January 11th, 2012 AT 10:00 PM

4 Answers

  • Tiny
  • rivermikerat
  • Expert
  • 6,174 posts

Could be or it could be the brakes are improperly adjusted.

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Wednesday, January 11th, 2012 AT 10:11 PM
  • Tiny
  • rasmataz
  • Member

What type of brakes do you have on the rear?

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Wednesday, January 11th, 2012 AT 10:11 PM
  • Tiny
  • ajblocton
  • Member

Tried brake adjustment. Reardrum, front disk

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Wednesday, January 11th, 2012 AT 10:14 PM
  • Tiny
  • rivermikerat
  • Expert
  • 6,174 posts

Check the wheel cylinders, they may be contaminated and not allowing the shoes to retract.

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Wednesday, January 11th, 2012 AT 11:18 PM

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