Rear drum applying without pedal

[hwstem]

My passenger side rear brake is applying itself while I drive but only on cold mornings. On my way to school about 6:45 it's around freezing and every 50 yards there is a scratching noise and the one wheel slows down, it seems only to happen when I let off the throttle. By, about 2:30 the noise either stops of maybe does it quietly for a mile then stops. The tempature is about 65 to 70. The mechanic tore it apart and cleaned a lot of dirt and dust out of the drum, the first day after that it was better, but it's back to the same way. I live on a one mile dirt driveway and the truck is a '97 F-350. What could this be?
Thanks,
hwstem

[10secondC]

replace the springs holding the shoes and check that the wheel cylinder is not seized up.

[Wilson7397]

Do you use your emergency brake the night before this happens?


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[hwstem]

Originally Posted by Wilson7397

Do you use your emergency brake the night before this happens?


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I don't use my emergency brake at night.

[hwstem]

Originally Posted by 10secondC

replace the springs holding the shoes and check that the wheel cylinder is not seized up.

I'll have to take a look at them. Thank you!

[Wilson7397]

I have the trouble with my passenger side rear wheel, my emergency brake doesn't release , and drags when I drive sometimes


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[hwstem]

Originally Posted by Wilson7397

I have the trouble with my passenger side rear wheel, my emergency brake doesn't release , and drags when I drive sometimes


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Could it be a bad cable? We had one break on our 2000 F-350 Triton at work this summer.

[vrtclhykr]

I am also looking at this problem. 06' 350 rear passenger side. I beleive it to be a cable issue combined with the return spring. If I an turning or banking left it is very apparent. If I am going to the right te noise goes away. This leads me to think the cable is a big player and has slightly more tension from the frame while going left.


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[10secondC]

Doesn't the 06 have rear disc's?

[BigFuel]

Originally Posted by hwstem

My passenger side rear brake is applying itself while I drive but only on cold mornings. On my way to school about 6:45 it's around freezing and every 50 yards there is a scratching noise and the one wheel slows down, it seems only to happen when I let off the throttle. By, about 2:30 the noise either stops of maybe does it quietly for a mile then stops. The tempature is about 65 to 70. The mechanic tore it apart and cleaned a lot of dirt and dust out of the drum, the first day after that it was better, but it's back to the same way. I live on a one mile dirt driveway and the truck is a '97 F-350. What could this be?
Thanks,
hwstem

Originally Posted by Wilson7397

I have the trouble with my passenger side rear wheel, my emergency brake doesn't release , and drags when I drive sometimes

Originally Posted by vrtclhykr

I am also looking at this problem. 06' 350 rear passenger side. I beleive it to be a cable issue combined with the return spring. If I an turning or banking left it is very apparent. If I am going to the right te noise goes away. This leads me to think the cable is a big player and has slightly more tension from the frame while going left.

Another suggestion, remove the drum and inspect the shoes for grease. At the top, midpoint, and bottom of the shoes should be a patch of anti-seize to make sure the shoes are sliding easily. Next, remove the cable from the parking apply arm and remove from the backing plate. At the other end of the cable disconnect the cable at the equalizer bar too. On one end remove the dust shield (pull it forward on the exposed cable) spray in a little WD-40 and work the cable in and out of the housing for a minute. Repeat till you can feel it acting smoother. Go to the other end and repeat there. Reattach everything and test operation.

Originally Posted by 10secondC

Doesn't the 06 have rear disc's?

Even with disc rears the parking system is still drum based inside the center of the rotor.