Rear Brakes lock up...

When I first start out, my rear brakes will lock up the first couple of
times I apply the brakes. They are even more 'sensitive' when it's damp
outside.
Anyone know the cause?
Do they need some type of adjustment?


tia,

--
Mel P.
96 Cherokee

My 01TJ used to do that also. Fricken dangerous in the winter
if you ask me. I remember pulling a double snowmobile trailer
one winter from my cottage, upon the first curve&hill I applied
the brakes and almost lost it. Hope my Rubie doesn't do anything like that.

Mel P. wrote:

> When I first start out, my rear brakes will lock up the first couple of
> times I apply the brakes. They are even more 'sensitive' when it's damp
> outside.
> Anyone know the cause?
> Do they need some type of adjustment?
>
>
> tia,
>

That sounds like pad failure. Once the pads lining the shoes have been
contaminated with water they swell up. This only has to happen once to
kill them because the structure flakes apart so any condensation or
humidity will swell them up again. The heat of use dries them.

I have had this happen a 'lot' in the last 8 or so years of owning
Jeeps, both on the front and rear linings. I have had to change brakes
more often from this than from wear.

Mike
86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
88 Cherokee 235 BFG AT's

"Mel P." wrote:
>
> When I first start out, my rear brakes will lock up the first couple of
> times I apply the brakes. They are even more 'sensitive' when it's damp
> outside.
> Anyone know the cause?
> Do they need some type of adjustment?
>
> tia,
>
> --
> Mel P.
> 96 Cherokee

I've had horrible problems like that with other vehicles. Only happens
when the pads are damp in the morning. As soon as you warm them up, they
work fine. Fix is to replace the shoes with a different composition, ie
NOT the same brand as what is on there. The semi metalic ones should run
better but are more likely to squeak. Can't help you on specific brands.

Mel P. wrote:
> When I first start out, my rear brakes will lock up the first couple of
> times I apply the brakes. They are even more 'sensitive' when it's damp
> outside.
> Anyone know the cause?
> Do they need some type of adjustment?
>
>
> tia,
>

Brakes will stick, if there is oil or grease on them. They can grab
and let go, and make a frightful noise. When you replace the rear
shoes, or have them replaced, pay attention to the axle seals. It
won't take much leakage, to cause the behavior you describe. Might as
well check the bearing clearance too.

As other posters have pointed out, water is also a possible culprit.
In that case, move to Nevada?

Earle

It's moisture as others have stated. I'm not sure if it's a light coat of
rust on the drums, swollen shoes or a combination of both. If they tend to
grab frequently, look for a leaking wheel cylinder. The shoes won't dry out
when they are contaminated by brake fluid.

-Brian

"Mel P." > wrote in message
...
> When I first start out, my rear brakes will lock up the first couple of
> times I apply the brakes. They are even more 'sensitive' when it's damp
> outside.
> Anyone know the cause?
> Do they need some type of adjustment?
>
>
> tia,
>
> --
> Mel P.
> 96 Cherokee
>
>
>
>

Ditto.
God Bless America, Bill O|||||||O
http://www.billhughes.com/

Earle Horton wrote:
>
> Brakes will stick, if there is oil or grease on them. They can grab
> and let go, and make a frightful noise. When you replace the rear
> shoes, or have them replaced, pay attention to the axle seals. It
> won't take much leakage, to cause the behavior you describe. Might as
> well check the bearing clearance too.
>
> As other posters have pointed out, water is also a possible culprit.
> In that case, move to Nevada?
>
> Earle

L.W. ("ßill") Hughes III did pass the time by typing:
> Ditto.

Yep. Just drag the brakes a few feet to warm them up.
Happens all the time on my ZJ when it's rainy or heavy dew.

> Earle Horton wrote:
>>
>> Brakes will stick, if there is oil or grease on them. They can grab
>> and let go, and make a frightful noise. When you replace the rear
>> shoes, or have them replaced, pay attention to the axle seals. It
>> won't take much leakage, to cause the behavior you describe. Might as
>> well check the bearing clearance too.
>>
>> As other posters have pointed out, water is also a possible culprit.
>> In that case, move to Nevada?
>>
>> Earle

You don't understand. Pulling out of the driveway on a snowy morning and
going crosswise on the downhill run to the stop sign is NOT fun.
Especially when it is too slippery to get any bite and try to warm up
the brakes.

DougW wrote:
> L.W. ("ßill") Hughes III did pass the time by typing:
>
>> Ditto.
>
>
> Yep. Just drag the brakes a few feet to warm them up.
> Happens all the time on my ZJ when it's rainy or heavy dew.
>
>
>>Earle Horton wrote:
>>
>>>Brakes will stick, if there is oil or grease on them. They can grab
>>>and let go, and make a frightful noise. When you replace the rear
>>>shoes, or have them replaced, pay attention to the axle seals. It
>>>won't take much leakage, to cause the behavior you describe. Might as
>>>well check the bearing clearance too.
>>>
>>>As other posters have pointed out, water is also a possible culprit.
>>>In that case, move to Nevada?
>>>
>>>Earle
>
>
>
>

Sounds like you need to buy a set of premium quality pads/shoes and trash
the low bid oem type.

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2002 Jeep WJ 4 Liter Automatic
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Sharing is why we are all here....... or should be.
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"RoyJ" > wrote in message
k.net...
> You don't understand. Pulling out of the driveway on a snowy morning and
> going crosswise on the downhill run to the stop sign is NOT fun.
> Especially when it is too slippery to get any bite and try to warm up the
> brakes.
>
> DougW wrote:
>> L.W. ("ßill") Hughes III did pass the time by typing:
>>
>>> Ditto.
>>
>>
>> Yep. Just drag the brakes a few feet to warm them up.
>> Happens all the time on my ZJ when it's rainy or heavy dew.
>>
>>
>>>Earle Horton wrote:
>>>
>>>>Brakes will stick, if there is oil or grease on them. They can grab
>>>>and let go, and make a frightful noise. When you replace the rear
>>>>shoes, or have them replaced, pay attention to the axle seals. It
>>>>won't take much leakage, to cause the behavior you describe. Might as
>>>>well check the bearing clearance too.
>>>>
>>>>As other posters have pointed out, water is also a possible culprit.
>>>>In that case, move to Nevada?
>>>>
>>>>Earle
>>
>>
>>