Bad week--first my brakes crunched ("chop-chop-chop-CRUNCH"), then transmission went. Replaced the transmission and front brakes. Also adjusted back wheel bearings. Now every third time I hit the brakes, especially if I pump them, the front wheels shudder and honk like a goose or "boing" like springs snapping. If I stay on the brake it feels like I go over a few big bumps and then it smooths out. If I back off, it happens again the next time.
My mechanic drove it and says the ABS system is compensating for something, but the ABS light doesn't go on, so the computer can't tell us where. He took the wheels apart to make sure the trans guy didn't get grease on the rakes, but he couldn't find anything. He says to baby it for a few days, til I smooth out the high points on the new brakes, and see if that helps.
Can I continue to drive it? If the ABS quits, can I still stop? Are there any magic solutions? Thanks for your help!
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Re: 95 Ford Windstar brake or ABS chatter
The ABS antilock braking system will if a fault occures? light up indicator light on dash but this means ABS is none operational thereby you will still be able to stop as if car not fitted with system i am conserned at your comment having to pump brake pedal? why? too much travel on pedal? but will pump up harder?? when you replaced front brakes? were the pads and discs replaced? did you bleed the brakes hydraulc system after ? from what you've said i am sure the ABS is working but a sensor /s is sensing premature brake lock up on either front or rear? so if you are certain front brakes ok? thencheck rears? if rear brakes are drums ? remove and inspect for wear or possible contamination ie cyl leaking fluid on shoes would cause brakes to adhese to drum on application also grabbing ? hope this helps some?
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Red lite comes on at startup to ck. system. If amber lite stays on, ck. brake fluid level and see if emergency brake is partly up. This shows problem with anti lock system if it stays on, not main brake system. If all is ok with this but still stays on Have ABS system checked. Haynes repair manual, 95-2003 Windstar, all models.
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.
Make sure the pads are installed correctly. There is an inner and an outer. make sure the hardware is lubricated with some brake lube. For the ABS/Traction lights, you will need a scan tool to find out what is going on.
not all cars but some do when you take off the rotor itself there is little brake pads just inside this is how your emergency brakes work and if you have this then this is probably why you are having the crunching noice because one of the pads is cracked inside