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Topic: Rear Brake Problem

in Forum: C4 Handling Components


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Rear Brake Problem (1/7)
 3/16/19 9:35pm
Gus
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Joined: 3/16/2019
Posts: 4

When backing rear brakes lock up (not always) - I can drive forward a few feet, then reverse again about 5 to 10 feet and the rear brakes lock up - this only happens when I feather the brakes- if I apply no pedal no lockup
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Re: Rear Brake Problem (2/7)
 3/17/19 11:44am
Black Shark
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Black 1979 L-82 Black 1996 LT1 Black 1999 Coupe


Joined: 3/20/2009
Posts: 598

Take the time to service and inspect the brakes on every wheel.
 
This includes removing the calipers from mount, maintenance inspection, sanding off surface rust and corrosion on caliper slide areas, using correct amount of lube in caliper slide locations, re-assemble.
Road test.
Costs nothing but time.
Will probably fix the problem for free.
 
If not, bring it to a pro.
Re: Rear Brake Problem (3/7)
 3/18/19 7:43pm
Adams' Apple
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Duncanville, TX - USA

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Posts: 2201

Chances are one(or both) of the calipers is missing a bolt, and when you go into reverse, then hit the brake, the caliper is rotating into the wheel, locking the wheel down. When you pull forward, the caliper turns back to where it should be, and works properly. See it all the time. Get the rear in the air, pull the wheels, and you'll likely find one of the caliper bolts are gone....and prolly see some gouging on the inside of the rim. Thumbs Up

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Re: Rear Brake Problem (4/7)
 3/21/19 9:56am
Barn find
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Lakeville, MA - USA

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Joined: 4/19/2014
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I have also heard of the rubber brake lines causing that problem. If they are old replace them.
Re: Rear Brake Problem (5/7)
 3/22/19 8:33am
Gus
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Posts: 4

It was a missing bolt on the mount bracket
Re: Rear Brake Problem (6/7)
 3/22/19 8:47am
Gus
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Posts: 4

It turned out to be exactly what you said-had slight scuff on the inside of rim but no problem-after inspection of full brake system found only one bolt under torqued-All is well Thanks
Re: Rear Brake Problem (7/7)
 3/22/19 8:55am
Gus
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Joined: 3/16/2019
Posts: 4

Found a missing bolt on the mount bracket-after full inspection of brake system all is well-Thanks
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