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bob

bob 8/5/2017

2003 Buick Century Custom 6 Cyl 3.10L

Brakes

brakes fade to floor.

I replaced frond disks &pads and bleed brakes, on test ride light stayed on and brake pedal has little pressure. I bled brakes again . no change I disconnected vacume line to booster and brakes were firm. replacing line caused original problem to reemerge.

1 Answer


Jimm

Jimm 8/6/2017

If you pump the pedal and it goes firm but slowly drops while you hold it, there may have an additional leak somewhere or you could have a bad master cylinder, or faulty power brake booster.

Try these on-line resources for the replacement parts: www.autopartswarehouse.com, www.partsgeek.com, www.rockauto.com, www.partstrain.com, www.autoanything.com - to list a few.

They (RockAuto) list the replacement power brake booster from around $107.00 and the brake master cylinder from around $37.00 for your vehicle.

Power brake booster = AC DELCO part #14PB4104 - or it's equivalent
Brake master cylinder = RAYBESTOS part #MC390401 - or it's equivalent

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