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Old 02-21-2003, 09:45 AM   #1
TC70C10
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Join Date: Nov 2001
Location: Harvest, AL 35749
Posts: 337
Question Brake Diagnosis

On my 81 K5 4x4 I've noticed my brakes acting funny the last couple of days. After I've come to a complete stop at a stop light I noticed the pedal will start moving towards the floor. The brakes also seem softer. Checked pads and shoes last night. They look fine. No leaks at wheel cylinder, brake lines or master cylinder.

My Ford buddy thinks the master cylinder is going out. They're only about 30 bucks, but I don't like to fix it if it ain't broke.

The problem could also be the check valve on the power booster or the other valve coming off the rear of the intake.

Anyone had similar problems??

Thanks
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1981 K5 Blazer 305, 4spd, 4x4, 4" Lift, custom bumpers, Warn 9.5 Ti Winch
1995 T10 Blazer 4.3L 4x4 (Son's)
2004 GMC Envoy 4.2L 2WD
2005 GMC Sierra Crew Cab Z71 4x4 5.3L
240 Fun Finder Travel Trailer

Harvest, AL 35749
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