92 dodge van rear ABS-brake and ABS lights on/can't reset?
I have replaced all brakes and brake lines.I have brake pressure but not a solid pedal.I assume there is a proper way to bleed this system ,but haven't found it yet! How do you reset the proportional valve and the ABS so the light on the dash is off! I have gravity bleed and assistant bleed, but still have a low brake.Rear brakes are adjusted firm, new roters,calipers.and brake pads on front. Master clyinder clean with new seals!
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Re: 92 dodge van rear ABS-brake and ABS lights on/can't...
Its probably how your bleeding your brakes, but first make sure the bleeding nipples are facing upward. You should bleed diagonaly, front pass wheel then rear driver wheel. Then front driver wheel and rear pass wheel. The abs light has its own computer your have to get it scanned to clear the codes and turn off the light
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You still have air in the brake system and this becomes evident when the operation of the booster allows the pedal to do down as it is compressing the air in the lines more efficiently than what you can do with your foot. Try starting the bleeding procedure but undoing the lines at the master cylinder and priming the unit first to get the air out of both sides of the unit. Tighten the lines and with the help of a assistant start at the longest line first and work back to the shortest. Booster failure will result in no assistance or engine stopping from a massive vacuum leak when the valves are opened. The abs is just a motor driven pump that supplies pressure to the brake system when the wheel sensors come into operation otherwise the brake pedal pressure is operating through the ABS unit to the brakes. (An ABS is only there to keep the brake pressure constant as the sensor opens and closes a valve to stop the wheel skidding . If it is not working then pressure from the pedal may bleed back leaving you with no brakes.)
Hey Stan the man,need your vehicles info.,year,make,model and engine size and Tommy on the spot here will send you a picture diagram of your rear brake assembly.There's a special spring tool you can get at auto parts store to remove and install springs,me got one.
try bleeding your ABS block first, if that doesn not work could need a master or proportioning vavle. Some scan tools are capable of bleeding the ABS system on some vehicles, and some you have to bleed manually.
SOME SPRINTERS HAD RECALLS ON MASTER CYLINDERS YEARS 2006-2009 CHECK DEALER FOR MAYBE RECALL,IAM NOT SURE WHY YOUR BLEEDING THE BRAKES IF YOU HAD OPENED A LINE OR CHANGED A CALIPER THERE MABE AIR IN THE LINES-I ALWAYS USE A PRESSURE BLEEDER OR YOU CAN GRAVITY BLEED SYSTEM BY OPENING EACH BLEEDER SCREW UNTILL GOOD FLOW THEN CLOSEING-IF BLEEDING FOR MUSHY PEDAL CHECK BRAKES AND THICKNESS OF ROTORS-ARE THEIR ANY CODES -IS THE ABS LIGHT ON-IF ALL CHECKS OUT GO TO MASTERCYLINDER
Did you bench bleed the MC before installing it? If not, that's the problem. MUST be bench bled or you'll always have air. If brakes lights are on, the brake switch is out of adjustment OR (since you replaced the MC), the push rod is out of adjustment
first of all make sure master cylinder is full of brake fluid.then you crank car leave foot off brake pedal. watch abs light on dash it should turn off in 10 seconds if not have car towed to garage or dealer. they have to use a scanner to scan the abs brakes if abs light turn off in 3 seconds. then starting bleeding from master bleed the lower brake line fitting at the proportional valve followed by the upper brake line fitting. keep eye on brake fluid in mastercylinder dont let run dry.next prime the abs hydralic modulator.connect the bleeder hose to the rear bleeder valve on the modulator.place the other end into a container partially filled with cleab brake fluid.make sure the end of the hose is submerged.open the bleeder valve slowly about 1/2 to 3/4 turn have an assistant depress the brake pedal and hold it in the depressed position. when the flow of fluid ceases close the bleeder valve.repeat process until no air bubbles are present in the fluid.then tighten the bleed valve securely. start bleeding brakes. your bleeding sequence is right rear - left front - left rear - right front.WARNING IF ALL FAILS YOUR BRAKES DONT FEEL SOLID AND FEEL VERY SPONGY.DONT DRIVE CAR. HAVE IT TOWED TO DEALERSHIP.THEY WILL HAVE TO PRESSURE BLEED YOUR BRAKE SYSTEM.