Hi All,


As winter has shown up here in Ontario, the rear brakes on my F150 have been locking up fairly frequently. Its gotten to the point where its become a real safety issue. Shouldn't my ABS help avoid this?

Thanks.

 

what year truck do u have?? do you know if you have a.b,s??

 

Do they only lock up on the first few stops after the truck sits for a while? could be a rust layer on the rotors.

 

Truck is a 2000 XL. And yes, they only lock up for the first few stops in the morning typically. But I have also had them lock up on my after driving for an hour or so on the highway then getting on the brakes to take the off ramp. It can be real scary at 70 miles an hour.

 

It almost sounds like either the rear tires are getting absolutely no traction whatsoever or the proportioning valve is screwed up.

 

sounds like a seizing up caliper if they are disk brakes.

 

Sounds to me like you might just be seeing the side effects of some semi- or full metalic brake shoes if you have drums on the back. Another thing drums do is lock up if the shoes are saturated with brake fluid from a leaking wheel cylinder. The tell tale sign of this is a wet line on the inside of your tire after being parked for a period of time. If you have discs on the back, could be a problem from salt getting in and rusting sliders or caliper pistons. Full metalic pads may react the same as shoes after sitting in a humid enviroment . If you are not hauling heavy loads, sometimes it is better to use a cheaper less metalic brake component out back. Just my two cents.