I have a 1980 ford f-100. I am having problems with the front brakes not realeasing when I am driving. Its like they are sticking and wont realease, then when I push the pedal down it makes a sound like air but when I push it down hard and hold it doesn't make the noise.
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Re: Problems with front brakes on 1980 F-100
Its common for older calipers to lock up. try cleaning the slides and lubing them. also when the calipers are off make sure the piston moves by depressing it all the way in. then drive again.
also very rare but you could have a bad brake hose causing pressure to stay inbetween the colapsed hose and caliper. this will keep a slight pressure on the side with a bad hose. but not so common like i said.. checking a bad hose by removing hose from caliper side. fluid should continue to flow out. if nothing flows out after 2 or 3 minutes you have a resriction somewhere. then remove hose from the hard line to see if fluid flows from the brake line. if fluid flows from brake line you have a bad hose. if fluid still does not flow from brake line you have other issues before the brake line. could be bad master.check master the saem way you check hose hopefully its easy. GOOD LUCK
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Vehicle should have been road tested by a reputable repair facility before releasing it to you to make sure there are no noises/problems with the repairs. Sounds like the front brake backing plate may have gotten bent and is rubbing/flexing during driving/braking. Have them recheck the repairs. If backing plate is bent, it is a minor problem with a quick fix and not a safety issue just an annoying issue
Time for a brake Job? Drive a small cheap car hard and you can run the brakes off quick. Real brakes come with real cars and these light cars have small brakes and if run hard or two footed can wear out quickly. Light niose can be rust wiped off the rotor after parked awhile then driven. Some brake rotors are different alloy and rust more than others and even a car just like yours might not do it. If the inspection doesnt find loose or broken brake parts cooked or craked, rim and tire problems can make noise move the tire to the back and the rear on the front run again to see if the problem moves to the rear. replace the broken parts and try again
REPLACE THE FLEX ABLE BRAKE LINE ON THE WHEEL IN QUESTION THE RUBBER ON THE HOSE IS SEVERAL LAYERS THICK AND PRESSURE CAN BUIELD BETWEEN THE LAYERS NOT ALLOWING THE BRAKE TO RELEASE AS NORMAL , THIS CAN BE CHECKED BY JACKING WHEEL OFF GROUND HAVE SOMEONE TO PUSH DOWN ON BRAKE HARD AND LET UP IMMEDIATELY WHEN THEY RELEASE YOU TRY TO TURN THE WHEEL SEE IF THE BRAKE APPEARS TO BE HOLDING , WAIT TEN MINUTES AND SEE IF IT APPEARS TO BE FREE IF SO REPLACE HOSE IF BRAKE STILL HAS IT YOU COULD HAVE OTHER PROBLEM . NOTE THIS IS A FT WHEEL DRIVE I KNOW WHEEL WILL NOT FREEWHEEL BUT YOU STILL SHOULD BE ABLE TO TELL IF BRAKE IS LOCKED IN TEST GIVEN
emergency brake cable may not have been adjusted properly or emergency brake may have been partially engaged without brake light indicating such. Check brake release handle, if it makes no noise as to indicate realease, then it would have to be the e brake adjustment or frozen brake cylanders that when brakes are applied the pressure presses the shoes against the drums but does not release pressure, could be bad cylanders but not likely on both sides at the same time.
If the front end vibrates when you put the brakes on it could be a few different problems. Your need to check the brakes, they may be worn. if the back brakes are worn your front brakes are doing all the stopping. if your brakes are fine then you are looking at the front control arms or the upper and lower ball joints. You can take your car to a brake and front end shop for a free estimate. You are probably looking at about 400 to 1200 dollars.
I hope this helps you out
Hello.Find out what side is applying.You can check this by lifting the front of the vehicle,then having someone apply the brakes.When the pedal is released,both wheels should instantly release.If one wheel wont turn after the brakes are relesased,that is the problem side.If the caliper is not frozen,then it will probably be the rubber brake hose that connects the caliper to the steal brake line.