Rear brake lock up.
#1
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Rear brake lock up '91 W250
The rear brakes on my W250 keep locking up. Even on dry pavement. My dad bought it new the summer of '91, and as far as I know he had the same problems. The tires had flat spots with the steel belts showing when I bought it from him.
I replaced the MC as it was leaking when I got it home and other than locking up frequently, they seem to be in great shape. The pedal is very firm, not mushy at all. Could the ABS valve be bad? It never happens when I have a load in the bed of course. It can get pretty scary when running light on wet pavement though which happens a lot in Oregon.
The ABS light never comes on by the way, but the bulb is good.
Any ideas?
I replaced the MC as it was leaking when I got it home and other than locking up frequently, they seem to be in great shape. The pedal is very firm, not mushy at all. Could the ABS valve be bad? It never happens when I have a load in the bed of course. It can get pretty scary when running light on wet pavement though which happens a lot in Oregon.
The ABS light never comes on by the way, but the bulb is good.
Any ideas?
#2
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The rear brakes on my W250 keep locking up. Even on dry pavement. My dad bought it new the summer of '91, and as far as I know he had the same problems. The tires had flat spots with the steel belts showing when I bought it from him.
I replaced the MC as it was leaking when I got it home and other than locking up frequently, they seem to be in great shape. The pedal is very firm, not mushy at all. Could the ABS valve be bad? It never happens when I have a load in the bed of course. It can get pretty scary when running light on wet pavement though which happens a lot in Oregon.
The ABS light never comes on by the way, but the bulb is good.
Any ideas?
I replaced the MC as it was leaking when I got it home and other than locking up frequently, they seem to be in great shape. The pedal is very firm, not mushy at all. Could the ABS valve be bad? It never happens when I have a load in the bed of course. It can get pretty scary when running light on wet pavement though which happens a lot in Oregon.
The ABS light never comes on by the way, but the bulb is good.
Any ideas?
Check the anti lock module behind the glove box and see if it has been disconnected...Mark
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That in it's self won't cause the locking though.
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Had a couple of girls run across a busy street (not in a crossing) and caused quite a few squealing tires. Caused my left rear to lock up and stayed that way for a few seconds even after I had released the pedal. The truck has about 78,900 on the odometer.
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I would open the drums and look in the self adjusters.
Better yet. Try this first.... https://www.dieseltruckresource.com/...ctures-207170/
Better yet. Try this first.... https://www.dieseltruckresource.com/...ctures-207170/
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I would open the drums and look in the self adjusters.
Better yet. Try this first.... https://www.dieseltruckresource.com/...ctures-207170/
Better yet. Try this first.... https://www.dieseltruckresource.com/...ctures-207170/
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