Air front calipers 1 side sticking on and unable to remove pads
Hi I have a 2001 Man le 160c 7.5tonne recovery truck which has a similar problem as the truck is rarely used & every time I go to move it the front brakes seem to stick on but most times they free them selves when rocking the truck backwards & forwards but will need inspected before I drive it but unsure with commercial vehicles if they will just need a good clean with a power drill & wire brush & callipers pistons some oil ?? unsure if the callipers pistons screw in or just push in ,I have drove it for 2 miles & I could feel the front brakes were still hanging on , please advise
SOURCE: brake sticking on new caliper
If install done correctly, proper lube etc, and still sticking, I'd change flex line to caliper.
SOURCE: Changing Rear brake pads 2005 dodge grand caravan
There are 2 bolts on the "inside" on the caliper towards the bottom they use an allen wrench socket.
SOURCE: 1994 GMC pickup front brakes are sticking.
By "sticking" I am assuming that you mean that the brakes are staying applied (calipers are not releasing)and burning the brake pads and rotors up.
The most common cause of this is brake hoses.
The hoses that connect your calipers to the steel brake lines have an inner lining and a reinforced outer "shell". sometimes the inner lining tears loose from the outer shell inside the hose. (It cannot be seen by "looking" at the hose.) The inner lining then starts to act similar to a "heart valve" where it allows fluid to be pushed down into the caliper, then collapses inside the hose, blocking the fluid from returning to the master cylinder when the pedal is released. This can happen just because of the age of the hose, but is more commonly caused by someone allowing the caliper to hang by the hose while replacing the brake pads without using anything to support the weight of the caliper.
To diagnose this condition, raise and support the vehicle and remove the wheels. Make sure that the transmission is in "Park" (Automatic Transmission) or "Neutral" (Manual Transmission) and apply the parking brake. Then start the engine and apply the service brake. (Press HARD on the pedal) Shut the engine off, release the service brake and open the bleeder screws on the calipers. If brake fluid squirts out of the bleeder screw under pressure, then the hoses are the cause of the calipers not releasing.
Testimonial: "I don't think I would have ever considered the brake lines. I've never seen one go bad. Your help is greatly appreciated!"
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