Question about 1990 Mercedes-Benz E-Class

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Brakes are so loose sometimes feel its not gonna stop then you pump it couple of times and it came back

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If there are no leaks (brake reservoir remains full), then you have air in the brake line and/or a leaking master brake cylinder. Check also the vacuum line to the brake boost.

Please do NOT drive the car until you have repaired the problem.

Posted on Oct 04, 2009

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Posted on Jan 02, 2017

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ABS and Advance track lights go on and off, but sometimes not always the front brakes feel like the are locking up (actually feels like the wheels are gonna fall off) replaced the sensor (in the back) that...


Sometimes if your rear sensors are in the brake backing plates, you will get debris from the Emergency brake pads and this will affect the sensor count. As the wheel revolution is perceived to be different from one rear wheel to the other, the Traction Control system automatically activates and applies the brakes to make the wheel revolution match on both back wheels.

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I have a 1992 izuzu rodeo LS 4x4 v6 and my brakes are having a hard time stopping i have replased the master cylinder the brake pads the rotors iv bled them but it still has a hard time stopping and it...


Check the caliper sliders, they may be seized causing limited brake pad contact. Also check the calipers for siezed pistons.
After bleeding the system, sometimes the proportioning valve will have to be reset manually. You can do this by having an assistant press the brake pedal and open a bleeder screw slightly on one side [ front or rear ] of the system, it may reset. If not, try doing the other side of the system.
If the brake pedal seems to be pushing back against you then either the Brake Booster isn't getting proper vacumn, or is faulty.
If the vehicle has drum rear brakes, make sure they are adjusted properly. If they are set too loose the pedal will feel spongy and low.
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May 01, 2011 | 1992 Isuzu Rodeo

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My brake pedal sinks all the way down and won't come to a complete stop unless I pump the breaks. When I'm stopped at a light the brake pedal is fine at first but it will slowly sink down again. I'll pump...


There could be any number of things wrong from air in the lines to a leak of fluid. In any case you need to get the car to a mechanic as it loss of brakes is very dangerous.

Dec 18, 2010 | 1993 Honda Prelude

1 Answer

Why is the break sometimes high and sometimes low


not sure if you mean while driving or when parked with the ignition off but here are a couple reasons on why the brake pedal may be high and low at different times. If the vehicle is running the brake pedal will feel the same just about every time. If the car is off and you step on the brakes it will get harder and harder to push down since there is no vacuum assist. Another reason would be the brake pad thickness. New brakes the pedal will feel higher where as worn brake pads the pedal may feel lower. Another reason would be if you have air in the brake lines. this will make the pedal feel mushy and soft at first and firm up as you pump the brakes. Hope this helps.

Oct 03, 2010 | 2007 Mercedes-Benz ML500

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Why is the "brake" icon illumiated in my 96 Camaro?


is it the "red" brake warning light? if so, its possible the master cylinder may have an internal leak causing the pedal to be soft. if this is correct you'll need to replace the master cylinder.
If this is the "yellow" brake warning light it the ABS system (anti-lock brake system) you'll need to have a professional inspect this.

Nov 02, 2009 | 1996 Chevrolet Camaro

1 Answer

Hi ! I was on the road and between driving the car lost the brake pressure ! hope ste speed was slow , but hit the car front of me. When the engine stopped the brake feel good when push few times , but the...


most common problems will lies in the master cyclinder become faulty. If the pressure feel spoongy or when you press the pedle all the way to the floor and no brakes or with little brakes, it will be your master cyclinder unit; sometime if you have to pump the brake couple of time to get the brake to work. replace the master cyclinder, fairly cheap. if you do it your self make sure you bleed it properly.

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1 Answer

Transmission leak,sluggish drive, pull


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.






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Rear brakes need adjustment


If you look at the bottom of the rear brake drum you should find a little opening sometimes it has a rubber plug inserted in it. Pull out the plug and use a thin straight screwdriver to feel for the adjuster. The adjuster has a spoked wheel on it thatyou can turn with the screwdriver just turn it a couple of clicks at a time till you feel drag on the wheel whenyou turn it by hand.

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