Question about Audi A6

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Replace brake booster

1996 with occassional locked brakes, not locking up while driving but not releasing after stopping. wait for 30 minutes and then can drive again

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  • 66 Answers

It is possible you have a brake hose acting as a check valve. Pump brake pedal until brakes drag and under hood release the line nuts one by one on the brake master cylinder.....if brakes release you have master cylinder problem....if not you have brake hose problem. This symptom is usually experienced when engine warms up ad heats up the aluminum m/c..

Posted on Nov 02, 2013

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Posted on Jan 02, 2017

  • 18 Answers

SOURCE: 1996 HONDA ACCORD FRONT BRAKE LOCK UP AFTER

check that the master cylinder is not locking on with a pressure build up the cyl may need replacing probly does

Posted on May 11, 2009

  • 14036 Answers

SOURCE: Took my 93' Toyota, has 193,000 miles replaced the

THE MASTER CYLINDER NEED TO BE BLED FIRST.BEFORE PUTTING ON THE CAR.TO MANUAL BLEED BRAKE SYSTEM.YOU NEED 2 PEOPLE TO DO A BETTER JOB.YOU FIRST BLEED THE LEFT REAR RIGHT REAR LEFT FRONT AND RIGHT FRONT. WHEN YOU BLEED THE BRAKES.HAVE THE HELPER PUMP BRAKES 3 PUMPS.AND HOLD BRAKE PEDAL IN.YOU NEED A CLEAR BLEEDER HOSE IN A CLEAR BOTTLE HALF WITH CLEAN BRAKE FLUID. WITH BLEEDER HOSE ON BLEEDER SCREW AND OTHER END BLEEDER HOSE IN BOTTLE OF BRAKE FLUID.WHILE HELPER PUMP BRAKE PEDAL HOLD IT IN OPEN BLEEDER SCREW 1/4 TURN ALLOWING AIR BUBBLES LEAVE THE BRAKE SYSTEM.CLOSE THE BLEEDER SCREW BEFORE BRAKE PEDAL RELEASE.HAVE HELPER PUMP BRAKE PEDAL 3 TIMES. WITH PEDAL HELD DOWN OPEN BLEEDER SCREW GETTING AIR OUT OF THE SYSTEM.WHEN YOU SEE SOLID FLUID COMING OUT OF BLEEDER HOSE THE AIR IS OUT THE BRAKE SYSTEM.DONT DRIVE CAR ON HIGHWAY IF YOU STILL CANT GET SOLID BRAKES. HAVE CAR TOWED IN TO BE PRESSURE BLEED.

Posted on Jun 19, 2010

  • 2428 Answers

SOURCE: brakes lock up after driving 10 km

Eighter you have problem to the to the anti lock brake modelue like a connection .Or there it a stuck valve inside BPMV witch is the molelue likely a dump valve witch is suppose to release the pressure .Unpluging the vacuum hose to the vacuum booster control will just disable the power brakeing mode .Try to figure witch wheel or wheels are not releaseing because the anti lock feature should not come into play unless there are extreame brakeing conduitions .See if its not a problem with a caliper sticking

Posted on Apr 23, 2012

  • 747 Answers

SOURCE: 2001 Audi while driving my front brakes lock up, if i wait about 45 mins i can drive again but it will keep locking up.

sounds like pressure is building up at your calipers make sure your brake peddle has no pressure on it and is not sticking to check this just see if you can pull up on it
if it pulls up see what is stopping it from doing so on it's own

Posted on Jul 30, 2012

briarddan
  • 12 Answers

SOURCE: 99 pontiac grand am - brakes are locked-up

Have you checked the emergency brake ? The cable could be locked up. Slowly apply e brake if it feels loose the cable is locked up. You could also have someone watch the cable near the rear wheel to see if it moves .

Posted on Oct 14, 2012

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1 Answer

2005 Hyundai Santa Fe, brakes locking up


Lets narrow this down a bit. You said all 4 wheels lock up. So the problem will will have a part in all 4 wheels. So knowing that, we can forget about the hose, master cylinder, and brake booster theories. It sounds like the ABS module is malfunctioning and surging. The Santa Fe's in the previous year had the same problem and were recalled. The problem with those was the ABS unit. Hope this helps you.

Oct 15, 2012 | 2005 Hyundai Santa Fe

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IT wont let me engauge drive after replacing brake booster


if you change the brake booster you must have knock the brake switch off or out of adjustment that will stop the shift inter lock system from releasing

Jul 07, 2012 | 1997 GMC Safari

1 Answer

Brakes lock up after driving 10 km


Eighter you have problem to the to the anti lock brake modelue like a connection .Or there it a stuck valve inside BPMV witch is the molelue likely a dump valve witch is suppose to release the pressure .Unpluging the vacuum hose to the vacuum booster control will just disable the power brakeing mode .Try to figure witch wheel or wheels are not releaseing because the anti lock feature should not come into play unless there are extreame brakeing conduitions .See if its not a problem with a caliper sticking

Apr 22, 2012 | 2003 Kia Rio

1 Answer

The brakes on all 4 wheels lock up after a short amount of driving.The pedal gets hard and wont release until the car sits for a while or until physically releasing the pressure by cracking the break lines...


CHECK THE BRAKE BOOSTER MAY BE FAULTY
LETING BRAKES SLIGHTLY APPLIED IT HAPPEN
ON ONE OF MY PREVIOUS CAR
TO DIAG PRESS TO GET BRAKES TO LOCK UP TIGHT THEN PARTIALLY UNBOLT
MASTER FROM BOOSTER TO SEE IF BREAKS RELEASED IF THEY DID REPLACE
BOOSTER ASSEMBLY

Jun 08, 2011 | 2002 Kia Rio

1 Answer

I have a 96 isuzu rodeo,3.2 and the brakes will lock up on their own, gradually then it takes about 15 minutes for them to release, any thoughts?


this could be caused by a few things, first you need to jack the truck up you will need all 4 wheels off the ground, put the transmission in neutral and have some one get in the truck and wile turning each wheel have the person in the truck push the brake pedal the wheel should stop instantly then have the person release the brake the brake should release instantly,( do this to each wheel ) if all brakes remain locked ( wont release instantly ) then replace the master cylinder if the both rear brakes wont release instantly replace the brake hose from the frame to the rear differential, if the both front brakes wont release replace master cylinder, if only one front brake wont release open the bleeder on that brake caliper if the wheel releases replace the caliper hose if the brake still wont release with the bleeder open replace the caliper, you should replace the caliper and brake hoses as a pair.

Mar 02, 2011 | 1996 Isuzu Rodeo

2 Answers

Driving and truck pulled hard to the right. stopped did not do it again.then truck seemed to lock up on frt right side.middle of rim smoking. help


The brake caliper locked down,check it to see ,get it to lock up,and open the bleeder screw on the caliper,if the caliper releases the rotor,replace the brake caliper hose,if it does not release,replace the caliper.

Apr 20, 2010 | 1996 Dodge Dakota

2 Answers

Replaced the brake booster how do you adjust for


Possibly the Proportioning valve. its where the lines go after the master. it has a bleeder screw of some sort on it. The pins inside wear out and stick causing uneven pressure. Replace or rebuild it if that be the case. Also chect the master for fluid leaks at the end of the piston where it connects to the booster push rod. If its leaking rebuild or replace it. 

Aug 09, 2009 | 1994 Honda Accord

2 Answers

1996 HONDA ACCORD FRONT BRAKE LOCK UP AFTER


check that the master cylinder is not locking on with a pressure build up the cyl may need replacing probly does

May 11, 2009 | 1996 Honda Accord

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