'03 Chevy Pickup with spongy brakes

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01-06-2006, 11:24 AM

#11

offshoredrillin

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Re: '03 Chevy Pickup with spongy brakes

Quote:

Originally Posted by Chris Sunkin

The master cylinder is sometimes the culprit but pretty unlikely with a vehicle this new.

If the brakes have been bled, and you replaced fluid, did you use DOT 3 or silicone? GM uses DOT 3 make sure you didnt combine fuilds as well....

01-06-2006, 11:44 AM

#12

Ted G

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Re: '03 Chevy Pickup with spongy brakes

Quote:

Originally Posted by Lmarth

The reason I ask is that I had an ABS "mis-fire" problem on our Expedition where the ABS would engage on every stop. The brake pedal would pulse and just before coming to a stop, the pedal would drop almost to the floor. The vehichle wasn't safe to drive that way so I pulled the ABS fuse and got a normal pedal.

This is also prevalent on the Tahoe/Sub, but it will cause a buzzing through the pedal when it happens. It is due to corrosion under the frt wheel sensors and a recall has been issued in northern (salt) states for it.

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