BajaBound Posted May 8, 2008 Share Posted May 8, 2008 Hey gang, just finished my little RMS/FMS and TB project and just for kicks threw some new pads up front. Within a week, my ABS warning light came on along with the red brake light. Upon start up, the ABS light goes out but comes back on after self check the. Just to be sure, I put new pads on the rear but the light(s) must be indicating something more severe. My Pathy friends say it's no big deal and one of them simply took the inidicator lights out of the dash..... The brakes are a tad spongy and may have a very small amount of air in them, but I'm thinking the warning lights are for some else all together. any ideas?? Link to comment Share on other sites More sharing options...
GhostPath Posted May 8, 2008 Share Posted May 8, 2008 Usually it's a bad wheel speed sensor. Link to comment Share on other sites More sharing options...
BajaBound Posted May 8, 2008 Author Share Posted May 8, 2008 (edited) Usually it's a bad wheel speed sensor. Really? ok thanks My next question (and you had to know I was going to ask) is what is a wheel speed sensor and how difficult/expensive is the repair. and thanks again Edited May 8, 2008 by BajaBound Link to comment Share on other sites More sharing options...
GhostPath Posted May 8, 2008 Share Posted May 8, 2008 Okay... will you need an explanation of how ABS works as well? Link to comment Share on other sites More sharing options...
MY1PATH Posted May 8, 2008 Share Posted May 8, 2008 Really? ok thanks My next question (and you had to know I was going to ask) is what is a wheel speed sensor and how difficult/expensive is the repair. and thanks again ABS = Antilock Brake System Locked brake / wheel = a wheel/break that is no longer spinning. If the vehicle is still moving this means the wheel is skidding or sliding locking up = a wheel / brake approacing the locked brake condition ABS control module uses a wheel speed sensor on each wheel so it knows that all wheels are traveling @ the same speed. when you hit the brakes (mostly on slippery condidtions or when you hit them hard in good conditions) it makes sure that none of the wheels lock up. so if you need to stop and one wheel rolls over and oil patch the wheel speed sensor will see that wheel slowing down and the ABS will reduce brake preassure to that wheel while increasing brake preassure to the other wheels. because that wheel did not become locked the vehilce was able to slow down without swerving or pulling. rubber stops you best when its just below flirting with that fine line between slipping (locked) and gripping pavemtent. the ABS controls your bakes to keep you close to that line while trying not to let you cross it. You may have noticed the light comes on (when it was working properly) while brakeing really hard, then again maybe you didn't notice the light because of the reason you were braking really hard. (damn j-walkers) anyway I helped a friend whith is pontiac, the wheel speed sensor was integrated into the wheel bearing, we were actually chaning the bearing but it comes as one unit can do one without the other. For your sake I hope it is simpler than this since I'm gessing changing a wheel bearing on a pathy is a little harder thatn a pontiac G6 Link to comment Share on other sites More sharing options...
Simon Posted May 8, 2008 Share Posted May 8, 2008 Okay......first off.... A WD21 has NO wheel speed sensors. The ABS is rear only. The ABS sensor is on the rear pumpkin. No sensors at the wheels. Secondly, if your brake light is on, and it's NOT because of the e-brake being engaged, you've got a problem. The ABS light simply means that the ABS system is malfunctioning, but regular brakes will work fine, except in the case where you've got an accompanying brake light. You definitely have air in the system, and I've got a suggestion as to where... halfway down the truck, on the passenger side, inner frame rail is the proportioning valve for the braking system. IT needs to be bled when you bleed the system. Start from the rear, bleed the passenger side rear brake, then the drivers side. Then the proportioning valve. Then the front passenger side brake, then the front driver's brake. Always bleed from furthest away from the reservoir, to the closest. By the way, your friend who simply pulled the light, is a moron. Any friend who will tell you to do that on something as important as brakes isn't much of a friend. Link to comment Share on other sites More sharing options...
GrimGreg Posted May 8, 2008 Share Posted May 8, 2008 (edited) By the way, your friend who simply pulled the light, is a moron. Any friend who will tell you to do that on something as important as brakes isn't much of a friend. x2 When you bleed your brakes you might as well get a big bottle of fluid and flush out all the old fluid in the lines. Brake fluid looks like whiskey, not coffee . Edited May 8, 2008 by GrimGreg Link to comment Share on other sites More sharing options...
Simon Posted May 8, 2008 Share Posted May 8, 2008 Good point on the fluid, Ryan. Link to comment Share on other sites More sharing options...
k9sar Posted May 8, 2008 Share Posted May 8, 2008 fluid? I thought it was brake paste. Last time I pulled the calipers to see why they were sticking, I could clearly see the black brake paste. Looked good to me... not like that thin runny sh!t in other cars. Link to comment Share on other sites More sharing options...
purdyboy89 Posted May 8, 2008 Share Posted May 8, 2008 A WD21 has NO wheel speed sensors. The ABS is rear only. The ABS sensor is on the rear pumpkin. No sensors at the wheels. umm, i have all wheel ABS as far as i know. at least im pretty sure thats what the manual said? Link to comment Share on other sites More sharing options...
Simon Posted May 8, 2008 Share Posted May 8, 2008 Check that manual again my friend. Rear ABS only on WD21's. Link to comment Share on other sites More sharing options...
k9sar Posted May 8, 2008 Share Posted May 8, 2008 standard features on teh 95 LE 4WD: Bucket Seats Center Console Fog Lights Power Heated Mirrors Keyless Entry System Limited Slip Differential Power Antenna Power Brakes Rear Window Defroster Sunroof 3.0L V6 SOHC 12V FI Engine 15 Inch Wheels 4-Speed Automatic Transmission Automatic Locking Hubs Tachometer Alloy Wheels Rear-Wheel ABS Anti-Theft Alarm System Leather Seats Cruise Control Power Steering Remote Trunk Release Tilt Steering Wheel Leather Steering Wheel Trim Air Conditioning Intermittent Windshield Wipers Power Windows Privacy Glass Rear Window Wiper Power Door Locks Roof Rack AM/FM/Cassette/CD Audio System Rear Spoiler Chrome Bumpers Link to comment Share on other sites More sharing options...
adamzan Posted May 8, 2008 Share Posted May 8, 2008 Check that manual again my friend. Rear ABS only on WD21's. Or slam on the brakes on a gravel road and have someone tell you.... Wow k9, the le's came with a cd player? Thats awesome. Link to comment Share on other sites More sharing options...
Simon Posted May 8, 2008 Share Posted May 8, 2008 (edited) Or slam on the brakes on a gravel road and have someone tell you.... Wow k9, the le's came with a cd player? Thats awesome. Yep. A double DIN stereo. Same head unit for the XE/SE/LE in 95, but the LE came with the 2nd unit that was a CD player that plugged directly into the stock head unit. I gave mine to SkinnyPedal. Edited May 8, 2008 by Simon Link to comment Share on other sites More sharing options...
purdyboy89 Posted May 8, 2008 Share Posted May 8, 2008 Check that manual again my friend. Rear ABS only on WD21's. Well damn i thought i was special or something lol at least that explians y my front tires lock so well when im doing burnouts. Link to comment Share on other sites More sharing options...
BajaBound Posted May 9, 2008 Author Share Posted May 9, 2008 (edited) Well damn i thought i was special or something lolat least that explians y my front tires lock so well when im doing burnouts. Mucho thanks folks!!!!! (sorry if that was a remedial question) Edited May 9, 2008 by BajaBound Link to comment Share on other sites More sharing options...
Simon Posted May 9, 2008 Share Posted May 9, 2008 Mucho thanks folks!!!!! (sorry if that was a remedial question) No worries. It only becomes remedial if it's been asked 46578 times, or if YOU have to ask more than once. Link to comment Share on other sites More sharing options...
adamzan Posted May 9, 2008 Share Posted May 9, 2008 No worries. It only becomes remedial if it's been asked 46578 times, or if YOU have to ask more than once. Like the questions about suspension lifts Link to comment Share on other sites More sharing options...
GrimGreg Posted May 9, 2008 Share Posted May 9, 2008 Like the questions about suspension lifts Or any other question you, Kit or Missyota ask.... Link to comment Share on other sites More sharing options...
Simon Posted May 9, 2008 Share Posted May 9, 2008 Or any other question you, Kit or Missyota ask.... Link to comment Share on other sites More sharing options...
LandShark Posted May 9, 2008 Share Posted May 9, 2008 Or any other question you, Kit or Missyota ask.... Win. Link to comment Share on other sites More sharing options...
adamzan Posted May 9, 2008 Share Posted May 9, 2008 (edited) Or any other question you, Kit or Missyota ask.... Hey, at least i don't come up with like 26324653 excuses not to post pics like someone else. Edited May 9, 2008 by redfinder Link to comment Share on other sites More sharing options...
LandShark Posted May 10, 2008 Share Posted May 10, 2008 Hey, at least i don't come up with like 26324653 excuses not to post pics like someone else. LMFAO. Makes you wonder sometimes eh? Link to comment Share on other sites More sharing options...
GrimGreg Posted May 10, 2008 Share Posted May 10, 2008 Hey, at least i don't come up with like 26324653 excuses not to post pics like someone else. Lost me on that one. Link to comment Share on other sites More sharing options...
LandShark Posted May 11, 2008 Share Posted May 11, 2008 Lost me on that one. Name starts with the 11th letter in the alphabet. lol Link to comment Share on other sites More sharing options...
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