rear brakes locking
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Elder User
Joined: Dec 2003
Posts: 590
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From: shelocta, pa
rear brakes locking
Hi, i have a 93 F150 4.9L, auto, 2wd with 159,000 miles. I leave it set overnight or several hours the rear brakes lock with even the slightest pressure. I haven't torn it apart yet but i'm thinking a leaking axle or brake cylinder? Any other ideas?
Senior User
Joined: Mar 2005
Posts: 115
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From: Powhatan, Virginia
New shoes? I had a set on my '92 4wd f150 that would do this. They seemed to absorb moisture from the air, more so when it was raining or damp. Other than being contaminated with brake fluid or diffferential grease, the only other thing I can think of is plain old dirt.
Posting Guru
Joined: Jun 2004
Posts: 1,781
Likes: 1
From: Central NY
Moisture is the most common cause of this but your two ideas are also on par. The only way to check this is to pull the drum and see. Mine does the moisture burn every morning in the spring & fall.
Cheers,
Tim
Cheers,
Tim
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