1999 Chevy S-10 brake light

Tiny
KLJHOUSE
  • MEMBER
  • 1999 CHEVROLET S-10
  • 6 CYL
  • 4WD
  • AUTOMATIC
  • 100,000 MILES
Brake light on, pedal sinks to floor, has little braking.
brake fluid level good ! No leaks at lines or all four wheels.
no fluid on inside brake pedal rod under dash.
breifly unplugged hose on booster and heard suction noise and plugged back in. I had replaced a front hub approx 500 miles earlier and everything appeared to be working just fine after that repair and than 500 miles later light comes and soft brake pedal and decreased braking.
Wednesday, July 16th, 2008 AT 9:52 PM

1 Reply

Tiny
MHPAUTOS
  • MECHANIC
  • 31,937 POSTS
Hi there,

If you have bleed the system and you have a sinking pedal (with no fluid loss) you may have a faulty master cylinder, they can fail internally and by-pass fluid causing the soft pedal. Have this check out first.

Mark (mhpautos)
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Thursday, July 17th, 2008 AT 1:37 AM

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