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The ABS light came on in my 1996 Lincoln Town Car. Turns out it was the main 50 amp fuse located in the fuse box under hood. Have you checked the fuse to see if it is blown? If it is blown, replace fuse and the light should go off. If it does not, have it checked at a Ford dealership for any problems.
Hello, If you have a Traction control button on the dash, turn it off and the motor should smooth out. You should look at the ABS sensors and internal parts on the rear brake system.
There are several reasons for your problem. It can be any or all of these. The ABS system counts the turns on each wheel. If there is debris like a deteriorated Emergency brake lining, or dust in the rear wheels, the sensor gets confused and loses count.
When the counts do not match on all 4 wheels, the ABS engages to bring them to be equal. One way is by extra braking on the fastest spinning wheel. This can activate the Traction control feature.
The Traction control feature can CHOKE the air off the engine by activating a flap in the air intake nozzle around the Air cleaner. If you think this is happening you can very temporarily disconnect the Air Intake at the Air Horn allowing your engine to breathe dirty air. Keep all the electric connectors plugged in. The motor should now run smooth.
Most likely you have a shorted wire triggering the blown fuse or a bad ABS sensor. You can run the van with the ABS light on as long as the wheels turn freely.
The Chevrolet/GM autos rely on a Kelsey ABS actuator system that is electronically controlled. I know its hard to describe sounds, but is it possible the crunch is a hum? If the ABS light comes on and goes off after restart it means one of two things. That the ABS controller is going bad or the speed sensors on the wheels have come loose or gone bad. Under your hood there is a fuse compartment that contains the fuse that controls the ABS system on your vehicle. Its a 60 Amp fuse and large.. Look in your owners manual for its location. . Check it with the vehicle OFF to make sure its not blown or cracked. Leave the fuse disconnected and start the car. The ABS light should STAY on as well as the parking brake light. Test your brakes by pressing down on them while the car is in park and not moving.. do you hear the sound. If you DONT hear the sound then the ABS control module is causing the brake pump to work continuously and thus your "noise". YOu can confirm by placing the fuse back in place and then listening to the car about where the drivers door is... do you hear a hum? If so you can leave the fuse disconnected to deactivate the ABS module. The brakes will still function you just WONT have ABS capability. Confirm this with a very slow roll from park or neutral and press brakes to stop. If you dont hear the noise or a hum, reconnect the fuse and take the car for a drive. Turn to the left and right while applying the brake at an intersection.. vehicle in motion slightly. Do you notice that the ABS light or noise occurs turning one way or the other or both? If it comes on during the turn then the ABS sensor in that wheel or both wheels need to be inspected and possibly replaced. Finally, you need to inspect the brake pads for wear..typically however brake pads have WEAR INDICATORS built in and will start to SQUEAL when you apply the brakes telling you time to replace pads. If its a squeal and not a crunch then have pads replaced. Finally, be sure and make sure you dont have any rocks or road debris within the brake area or between teh pads and the rotors. That would be your final area to review for a CRUNCH noise.
There is a sensor at each wheel. If the light came on have it checked by a technician familiar with ABS. The sensor might not be the problem - it could also be the part that it is "sensing." Sometimes a blown fuse will turn the ABS light on. When the ABS is disabled the brakes still function as conventional brakes.
Most likely ABS module needs rebuilding. This can be done for about 300 bucks or less thru ModuleMaster.com. But first be sure no fuses are blown. The proper way to test this is check for power and a ground at the ABS module. A professional can do this for you. Since the light is on your car is operating without the ABS funtion. You can remove the module, wrap the connectors and base assembly to prevent moisture and dirt from fouling them. Then ship the unit. You can still drive the truck. The brake will not have the anti skid capabilities but most old cars dont have this anyways. When the module is returned just plug it bak in and drive. Light should reset itself.
check your fuses. check your fuses. check under the hood on the top row there will be a 60amp fuse i beleive its the second one from the right it controls the abs system its blown. your probably gonna need a new altenator.