| Author | Message | ||
     Erik Geagan (Geagan) Member Username: Geagan Post Number: 176 Registered: 10-2002 |
The brakes feels like they are "skipping" when she is driving down hill and hitting the brakes at the same time. The anti-lock light is on as well. Any suggestions? | ||
| Bill Bettridge (Billb) Dweb Lounge Member Username: Billb Post Number: 1153 Registered: 02-2002 |
Probably an ABS sesnor bad or out of range. Get this corrected quickly or disconnect the ABS until you do so as it is very easy to lose braking ability. Try to reseat all 4 sensors first by pushing them in as far as they will go. They will then self gap as you drive. Have you had any brake work done lately, or do you have any play in the wheels (wheel bearings?) Bill | ||
| john heath (Jheath6) Member Username: Jheath6 Post Number: 66 Registered: 09-2003 |
get it fixed now it could get worste sometimes when this fails the abs only breaks and you can't stop all the way and end up hitting someone | ||
| Eric Ratermann (Ericrat) Member Username: Ericrat Post Number: 60 Registered: 08-2002 |
Really, pull the fuse till you get it sorted out. | ||
| thom mathie (Muskyman) Senior Member Username: Muskyman Post Number: 352 Registered: 11-2002 |
i agree....pull the fuse or the plug on the ABS unit. the tone ring also gets contaminated and sometimes causes this. good time to go through the swivels and check bearings and lubrication. | ||
| Jesse Lessard (Jlessard) Member Username: Jlessard Post Number: 60 Registered: 10-2002 |
My 96 has been doing this also, I re-seated the right front sensor and it went away for about 2 weeks. Re-seated again last weekend and the problem is gone for now, but I'm thinking it will come back. What is this tone ring that gets contaminated? Also I'v never taken apart the swivels, If its not too hard I can make it my mext weekend project  | ||
| Bill Bettridge (Billb) Dweb Lounge Member Username: Billb Post Number: 1157 Registered: 02-2002 |
Jesse, If it keeps happening with the same sensor - then you probably have a wheel bearing, hub torque, or CV joint issue. Regardless, you're going to have to take it all apart to find out. A good time to clean, examine and readjust everything in the swivel (yes, including swivel preload). Bill | ||
| john heath (Jheath6) Member Username: Jheath6 Post Number: 70 Registered: 09-2003 |
but i can't say enough till you get the time to fix this problem pull the fuse this will get rid of the abs but in this case is a good thing to eliminate it for now. it is better to pull the fuse and just have standard brakes then to confuse the abs sysytem and it never lets your standard breaks work thus not letting you stop and cream someone in front of you and i do mean cream them. | ||
| Erik Geagan (Geagan) Member Username: Geagan Post Number: 179 Registered: 10-2002 |
Just got it fixed. Needed a new sensor. $350.00 (with labor) | ||
| Gregg Gallagher (Gregg_gallagher) New Member Username: Gregg_gallagher Post Number: 13 Registered: 08-2003 |
Which fuses do you pull to disable the anti-lock? I checked the manual and there are two fuses in the fuse panel under the dash and a 30 amp fuse in the engine compartment. Do all three need to be yanked? Never liked the anti-lock system on my D1 anyways....just curious....Gregg | ||
| Bill Bettridge (Billb) Dweb Lounge Member Username: Billb Post Number: 1164 Registered: 02-2002 |
Forget the fuses - disconnect the white round power lead connector at the ABS pump itself (2 wires brown/black - heavy gauge). This will trigger the ABS light, but you can always pull that bulb if you wish. Bill | ||
| Stephen Hawkins (Madmole) New Member Username: Madmole Post Number: 10 Registered: 07-2003 |
Ouch!!!! why so much? is the sensor gold plated? | ||
| Jon Crain (Bird_dog) New Member Username: Bird_dog Post Number: 24 Registered: 05-2003 |
If you have a digital multimeter you can test the resistance between the two sockets on the sensor side of the abs sensor connector. These damn things tend to break right where the sensor meets the cable (at the hub) but it is internal so the break cannot be detected externally: The resistance at the connector should be about 900-1000 ohms (900-1K ohms) if the resistance is correct wiggle the sensor wire where it comes out of the sensor, if the reading does not change it is good (it will fluctuate a bit though) if it is defective you should see 1k ohms drop to open (ie OL or off line) then back to 1k ohms. The front sensor connectors are easily accessible (look for cream or yellow cylindrical connectors in front of the abs pump and right shock tower)the rear connectors are forward of the rear axle attached to the underside of the body (wear goggles). It sounds like alot of trouble but it is fairly simple and should only take 15 min at most. Good Luck and definately disable the ABS until you can determine the root of the problem and before someone gets hurt. | ||
| Erik Geagan (Geagan) Member Username: Geagan Post Number: 180 Registered: 10-2002 |
It was 282.00 for the part, plus labor. My guy is $75.00 an hour. | ||
| mike tamayo (Tamayo_9) New Member Username: Tamayo_9 Post Number: 2 Registered: 08-2003 |
i dont't understand this whole reseating of the sensors. i cannot seem to budge the sensors on my truck. how much force is needed? can someone offer some advice to help me out? i am praying that it is a matter of them being adjusted and not a replacement. thanks | ||
| Al Oliveira (Offroaddisco) Senior Member Username: Offroaddisco Post Number: 1565 Registered: 04-2002 |
Mike, Do you have a D1 or D2? | ||
| Eric (Epuffy) Member Username: Epuffy Post Number: 105 Registered: 07-2003 |
I have a 97 Disco and have the same problem on my truck. I checked for fuses to pull (don't have a manual), and there is one 5 amp fuse under the dash, and 30 and 50 amp fuses under the hood for the ABS pump and ABS valve? Are those the 3 I need to pull? Thanks! | ||
| Bill Bettridge (Billb) Dweb Lounge Member Username: Billb Post Number: 1187 Registered: 02-2002 |
JUST disconnect the two wire connector that powers the ABS pump - that's it. No need to mess with any fuses. Bill | ||
| Eric (Epuffy) Member Username: Epuffy Post Number: 106 Registered: 07-2003 |
Hey Bill, Where is that connector on the ABS pump? All I see is a big connector, with a lot of wires, going into the left side (if looking from the front) of the ABS unit. Is this the same as disconnecting all the fuses? e.g. the "Anti-Lock" will remain on either way, if I pull the fuses, or do it your way? Thanks! Eric | ||
| Eric (Epuffy) Member Username: Epuffy Post Number: 107 Registered: 07-2003 |
oops, i meant "anti-lock" light in the second part of my questions | ||
| Peter Matusov (Pmatusov) Senior Member Username: Pmatusov Post Number: 1107 Registered: 09-2002 |
ouch, an hour to replace the ABS sensor... | ||
| Bill Bettridge (Billb) Dweb Lounge Member Username: Billb Post Number: 1192 Registered: 02-2002 |
Eric, There is another connector that has two large gauge wires going in/out. That is power/ground. Some years it is a round white connector, other years a rectangular black connector. The one you're looking at is the sensor inputs - leave that one alone. Bill |
