I don't know if it is my brakes or transmission that is sticking?
When I stop then release the brake pedal to go forward I feel like the brakes are locked then release. If I do this on a hill in neutral it does not happen leading me to believe that the drive train is causing this locking feeling. Any ideas?
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Apply service brake pedal three times with a force of approximately 175 lbs.
Fully apply and release parking brake three times. Full application may require two pedal strokes.
Raise and support vehicle, then mark relationship between wheel and axle flange.
Check parking brake pedal assembly for full release as follows:
Turn ignition switch to On position.
If ``Brake\'\' lamp is illuminated, operate manual brake release and pull downward on front parking brake cable to remove slack from pedal assembly.
Remove rear wheel and tire assemblies, then install two lug nuts to retain each rotor assembly.
If two parking brake levers on both calipers are not against lever stops on caliper housings, check for binding in rear cables and/or loosen cables at adjuster until both left and right levers are against their stops.
Tighten parking brake cable at adjuster until either the left or right lever begins to move off the stop, then loosen adjustment until lever moves back barely touching stop.
Operate parking brake several times to check adjustments. A firm pedal feel should be obtained by pumping pedal two full strokes and rear wheels should not rotate forward when parking brake is fully applied.
Install wheel and tire assemblies, aligning marks made in step 3.
Check your bake lights. If they don\'t come on, replace the brake switch (located on the brake pedal arm, under the dash) This is what controls the TCC solenoid off control. The jerk you feel is the transmission downshifting from overdrive to 4th or 3rd, depending on your transmission. If the lights come on, then you need to trace wires to the transmission to the brake switch or ECM.
It sounds like a vac problem with the engine or the brake booster. The brakes should be vac assist and that vacuum comes from the engine. If it were something with the ABS system you should have a warning light on the dash. Nothing in the transmission would affect the brakes.
If the pedal really is going down to the floor you must have air in the system and you are compressing it. It is possible to get a very minor leak that lets air in but very little fluid out. If the pedal is going down to the usual level your servo could be acting up. If you get somebody to run the engine and then stop it and press the brake pedal while you listen under the bonnet you should be able to hear the air rush in when the atmospheric valve opens. If it doesn't you may have a leaking hose or the atmospheric valve is not working properly. Another possibility is seized pistons in your calipers or they are rusted up and sticking. If you jack the car up and get someone to press the brake pedal and see if it locks each wheel in turn, when they take their foot off the pedal you should be able to turn the wheel by hand. If the wheels don't lock when the foot brake is applied or don't unlock when the pedal is released the problem is probably either sticking disc pads or seized pistons.
The air seeping is a dead giveaway. Your power brakes are now manual brakes, but stiffer. The diaphram in the brake booster has torn and the hissing noise is the engine vacuum escaping (you hear it louder when you depress the pedal right?). Replace the booster and you will be fine. The brake lights probably don't work because you can't push the pedal down far enought to release the switch. Please rate. Thanks.
Hello kelley_hornb: My name is Roger and I will help with your problem: If this occurs when you apply the brake pedal? I would look at the brakes. Should your rotors be warped you will have a pulsing feel in the brake pedal when stopping. The harder you push the brake pedal the faster the pulsing feeling.The transmission useually does not cause this feeling or problem. The next time you drive your car. Feel for the sensation when you slow down. As the car gets slower and you can safely let the car stopwith gentle pressure on the pedal. The car should stop with the same pulsing feeling as the car rolls to a stop.Or try putting the car in neutral at 10 mile an hour and gently step on the brake. If you feel the puling then the problem would be the brakes and not the transmission. In doing this you took the transmission out of the equassion. Should you need further help please just ask. Please rate the answer. This way I know it was helpful. Thank You for using Fix Ya. Roger
Release your parking brake :) Just kidding. Next time it does this sluggish thing, Put it in reverse and apply your brake, firmly and safely.then see if its still sluggish going forward. don't hit the brakes or hold then when you dhift to drive but don't dally and give the guy you just backed into a chance to get to you. Kidding. Ok, no more joking Starting out from a forward stop, vehicle feels sluggish. Stop vehilcle and back up a few feet stopping firmly. Now realese foot brake and put in drive, DON'T REAPPLY YOUR BRAKES SHIFTING INTO DRIVE.see if sluggishness is still present. If it is, Your rear brakes may not be fully retracting or they are over adjusting,adjusted. Automatic brake adjusters sometimes like to over do it. If your trans fluid is low, then maybe it can feel funny but not held back. If the back and forth thing provevs to free the brakes then have the brake checked. But seriously, to save embarrassment make sure your parking brake is FULLY RELRASED. Good luck and please let me know if I've helped you.
buy a can of silacone oil and spray it up under and behind the brake pedal its most likly the small switch sticking do not spray front of pedal you could cover this with an old rag to prevent overspray this will solve your problem.adrian