1986 Chevy Corvette Brakes, Rattling Valves

1986 CHEVROLET CORVETTE
162,000 MILES • V8 • 2WD • MANUAL
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JCDUDLEY
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  • 1 POST
I have 2 questions. First, I'm hearing a nose in from the brake pedal, sounds like an air leak. It's constant as long as the car is started. Operating the brakes is all manual, no power assist.

Second, I'm hearing the valves rattle a bit usually in 2nd gear and only when I really step on the accelerator. Is this is a function of low octane or something more serious?
Jun 18, 2010 at 9:22 AM
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DOCFIXIT
  • ✓ASE Certified Mechanic
  • 18,828 POSTS
  • ASE Certified Mechanic
Problem is failed diaphram in brake booster ie. HISS replace that and valve rattle will go away and brakes will be back
Jun 18, 2010 at 1:40 PM
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