Question about 1995 Chevrolet Suburban

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I have a 1995 GM Suburban and when I press on the brake I hear noise like air and I have to almost touch the brake all the way to the floor. I was told that it could be the master cyclinder. If it is could I get one at the junkyard?

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If it sounds like rushing air when you hit the brakes I would suspect the vacuum booster first. There is no air venting through the master cylinder but the booster is connected to a vacuum line. Kind of a pain in the *** to change, you have to remove the master cylinder, then get up underneath the dash and remove the bolts which go through the firewall and hold the booster. You may also have to disconnect the actuating rod which connects to the brake pedal arm. I would toss in a new master cylinder too when you put it back together. Do not put a used wear item in your vehicle unless you want to do the job again soon.

Posted on Nov 03, 2010

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