1977 Porsche 911 Brake booster/master cylinder

1977 PORSCHE 911
178,000 MILES • 6 CYL • 2WD • MANUAL
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PEREZR45
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  • 1 POST
Brake pedal does not return causing all for disk brakes to stay engaged.

Could the brake booster or the master cylinder cause this symptom and how do I trouble shoot these items?
Nov 3, 2010 at 6:46 PM
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MECHTRIX
  • ✓ASE Certified Mechanic
  • 393 POSTS
  • ASE Certified Mechanic
2 things can cause this problem a leaky vacume hose leading to the botom drivers side area of the booster just below the master cyl...but not likely '' most likely'' its the return spring down at the base of pedal its a coil spring with a hook on one end that wraps around the pedal to hold it in the up'' position take a peek at it '' good luck ....hope this helps...mechtrix
May 3, 2011 at 6:50 AM
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