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#29969 02/06/2004 8:41 PM | Joined: Oct 2000 Posts: 108 Shop Shark | | Shop Shark Joined: Oct 2000 Posts: 108 | My '84 1/2 ton Suburban is locking up the brakes on the left rear wheel. (It was doing this occasionally earlier last summer, then quit, now it's really bad) When it does this I literally can't go forward. But, if I put it in reverse, back up several feet then, pop it into drive without touching the brake it "pops" kinda loud then (usually) lets go. I don't see a broken return springor anything like that.
Ideas?!
Could it be the wheel cyl? The master cyl.? The Proportioning valve? The power booster? How to check?
I had this same problem on my '51 1/2 ton a few years ago and it turned out to be the master cyl. But, of course that has a single well master cyl. | | |
#29970 02/06/2004 11:23 PM | Joined: Oct 2001 Posts: 3,458 Extreme Gabster | | Extreme Gabster Joined: Oct 2001 Posts: 3,458 | Do you have grease or oil on the brake shoes from a faulty grease seal? Or a leaky brake cylinder? Both of those will cause the brake to stick and lock up.
Another thing that can happen is grooves worn in the backing plate from shoe activity.
Paint & Body Shop moderator
A lone amateur built the Ark. A large group of professionals built the Titanic. | | |
#29971 02/07/2004 11:05 PM | Joined: Oct 2000 Posts: 108 Shop Shark | | Shop Shark Joined: Oct 2000 Posts: 108 | Nope, No leaks at the wheel cyl or the grease seal. | | |
#29972 02/08/2004 7:03 AM | Joined: Oct 2001 Posts: 3,458 Extreme Gabster | | Extreme Gabster Joined: Oct 2001 Posts: 3,458 | It could be a parking brake cable problem.
Paint & Body Shop moderator
A lone amateur built the Ark. A large group of professionals built the Titanic. | | |
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