By Jose A Cabrera (Jcabrera) on Monday, August 20, 2001 - 01:04 pm: Edit

ABS acting up
One more problem/question from me. I recently changed my rotors and brake pads (front and rear). I have drilled rotors and Kevlar pads.
When driving slowly, under 10 MPH and I press the brake pedal, it feels like if the ABS was engaged (pulsing feeling), it also occurs when moving slow and turning the wheels at the same time. Any suggestions please!

By Perrone Ford on Monday, August 20, 2001 - 02:16 pm: Edit

Jose,

I've had this on the RR. Bleeding my brakes helped a lot but maybe there is something else triggering your ABS. I've heard that wheel bearings wearing can cause issues with this too.

-P

By Axel Haakonsen (Axel) on Monday, August 20, 2001 - 05:46 pm: Edit

I can't see how bleeding your brakes would have any effect on the ABS system, but it won't hurt anything, either.
A more likely culprit is an unseated ABS sensor, or a sensor that is going bad. I have had this happen twice, cleaning and reseating the sensors has fixed the problem.

By Jose A Cabrera (Jcabrera) on Tuesday, August 21, 2001 - 06:38 am: Edit

Any other suggestions fro me?

By Danno on Tuesday, August 21, 2001 - 02:45 pm: Edit

save yourself from future complaints and disable the ABS by pulling the fuses...

By Alex Schubow (Alex) on Tuesday, August 21, 2001 - 02:50 pm: Edit

A word of warning about pulling the ABS fuse on 96+ vehicles - it is likely to set off your check engine light with a code P1317. My fuse would be long gone if it wasn't for this pesky problem. PITA

Alex

By Danno on Tuesday, August 21, 2001 - 03:30 pm: Edit

yep...got the Check Engine and Anti-Lock lights on... what is code P1317?

Danno

By Alex Schubow (Alex) on Tuesday, August 21, 2001 - 04:51 pm: Edit

Rough road sensor. Its a BS code and can be safely ignored, but of course you won't know if there is another code that might otherwise trigger the MIL because it's already on. Basically it means the GEMS ECU ain't talking to the ABS ECU. That's a mouthful of acronyms.

Yep--if you have a 96+ disco you're cursed with the ABS, AFAIK.

Alex

By milan on Wednesday, August 22, 2001 - 08:37 am: Edit

I have a 96 disco and I pulled the plug on the module. I get the ABS light but no Check Engine light. I think it is because the circuits from GEMS to ABS are intact but the ABS does not respond. When you pull the fuse, the circuit is broken, hence the check engine light.

By Jose A Cabrera (Jcabrera) on Wednesday, August 22, 2001 - 04:49 pm: Edit

Problem fixed.
It turns out that the front right & left ABS sensor were loose from off-roading on last trip. They were removed and put back and no problem now. Thank you all!!!! Let's do Pismo!!!

By Alex Schubow (Alex) on Wednesday, August 22, 2001 - 05:19 pm: Edit

Milan,

I will have to give that a try. Lately, I'm no fan of ABS. We'll see how it goes.

Alex

By Moe on Wednesday, August 22, 2001 - 07:13 pm: Edit

"I pulled the plug on the module" and after off-roading it can be plugged back in and you have ABS again. Ideally the 'hot' wire(s) would be run to a dash switch that could be easily switched on or off. If anyone knows the key wires, let us know.

By rose (Rose) on Thursday, August 23, 2001 - 02:01 am: Edit

Don't listen to those idiots about disconnecting your ABS. ABS is a major breakthrough in automotive technology. Car manufacturers spend big $ improving their ABS systems. Are these morons smarter than the car manufacturers? I dont think so.

You probably loosened a speed sensor when you replaced your rotors. Go back and check all your sensors again.

By Alex Schubow (Alex) on Thursday, August 23, 2001 - 02:08 am: Edit

Time for a sarcastic rant...

Yeah, and while you're at it, don't even consider modifying anything from stock. Car manufacturers spent years and millions of dollars on research designing every aspect of their cars to be JUST SO. You'd be a goddman fool to fuck with it. You don't know what the fuck you're doing anyway, and they do. So if you made any mods, get in your garage quick and return it to stock. Then send all that worthless fucking crap to me before your vehicle spontaneously combusts.

End of sarcastic rant.

ASSHOLE

Alex

By Danno on Thursday, August 23, 2001 - 03:30 am: Edit

Alex, tell me how you really feel? hehehe

Milan, thanks for the tip...

plain and simple the ABS on D1's suck. have you read the post about how the guy's ABS kicked in and he slammed into a car infront of him when he had plenty of room to stop? it's happened to me in the rain and snow where i started breaking WAY before an interrsection, then the ABS kicks in and into the intersection i go. not too fun...

car manufacturers smarter than us morons??? can you explain the Ford Pinto or even the Pontiac Aztec? WTF??? hehehe

Danno

By Jorge P. Gutierrez, Jr. (Jpg2esq) on Thursday, August 23, 2001 - 04:11 am: Edit

ok enough ranting. Can some one guide me step by step how to locate and check the sensors on the Disco. I don't want to disconnect the system but the abs is running crazy. For example..do I have to take the wheel off to check the sensor etc?

By Alex Schubow (Alex) on Thursday, August 23, 2001 - 04:34 am: Edit

You can leave the wheels on. The front sensors are inserted into the top of the swivel housing. Just follow the black-jacketed abs wire harness. Pry the sensor out a little bit and then push it back in.

The rear sensors are inserted into the back end of the hub. Again, follow the ABS wiring, pry out a little and push in.

Alex

By Discosaurus (Discosaurus) on Thursday, August 23, 2001 - 05:44 am: Edit

Anybody who thinks ABS is the shit, all the time, hasn't offroaded very much. Goddamm ABS will wreck you, sometimes.

There's a certain relay that can be "switched" off to disable that will not cause the MIL to illuminate. You'll still have the ABS warning light but not the MIL. I forget which it was but it fell out of it's socket on my truck once and did just that 'till I found it.

Alex, BTW, nice rant

keith
discosaurus

By Discosaurus (Discosaurus) on Thursday, August 23, 2001 - 05:49 am: Edit

""plain and simple the ABS on D1's suck. have you read the post about how the guy's ABS kicked in and he slammed into a car infront of him when he had plenty of room to stop? it's happened to me in the rain and snow where i started breaking WAY before an interrsection, then the ABS kicks in and into the intersection i go. not too fun... ""

Actually, that's how it's supposed to work.

Without the ABS, you would probably have slid through the intersection anyway, with all your wheels locked up. When it comes to ABS *ON ROAD*, I sort of agree with that rose guy...factory ABS is better then you, probably even if you're German, drive a "off road" Ferrari and have a last name that starts Schum*****

keith
discosaurus

By Milan on Thursday, August 23, 2001 - 07:52 am: Edit

I disagree with Rose even for on-road driving. I do feel I can stop better than ABS in certain situations and it happens to be the ones that I encounter most. Should I encounter a situation where my disconnected ABS gets me in trouble, all I can say is it is a choice of one evil over another. Besides, the only time I found ABS better was going around a slippery corner too fast and needing to brake. However, the difference was marginal. It still sent the truck straight. ABS will not compensate for real driving errors. It only fools the fools into thinking they're safe. It scares the living daylights out of me that there are idiots out there counting on ABS and other electronic crap to save their asses. If the ABS is so shit-hot how come, your stopping distance increases?

By Discosaurus (Discosaurus) on Thursday, August 23, 2001 - 09:21 am: Edit

Well, to each his own, I guess.

Milan, in which types of on-road conditions do you think you can outbrake ABS ?? The only ones that come to my mind are slow situations with wet snow and in a straight line.

keith
discosaurus

By Danno on Thursday, August 23, 2001 - 11:25 am: Edit

***********Without the ABS, you would probably have slid through the intersection anyway, with all your wheels locked up. When it comes to ABS *ON ROAD*, I sort of agree with that rose guy...factory ABS is better then you, probably even if you're German, drive a "off road" Ferrari and have a last name that starts Schum*****

Keith, it's done this even on dry pavement, and i'm not talking while heavy braking either, just a gradual stop.

By C. Ross on Thursday, August 23, 2001 - 11:32 am: Edit

My 97 is randomly doing this also. We've pulled and cleaned the sensors and it still does it. Yesterday I nearly ran into a busy street b/c of it. When it does it if you'll take your foot off the brake and reapply then it will stop. I've only noticed it in low speed applications, thank goodness. Anyone else have any ideas? BTW, my brake pads were changed about 2 months ago.

Ross

By Milan on Friday, August 24, 2001 - 08:31 am: Edit

Keith,
Maybe each ABS is different. I felt mine sucked. It engages too easily IMO and that's as per factory specs. You're probably right about me being better than ABS mostly at slow speed and in a staright line.

However, my point is that if I'm going too fast to begin with, I will hit something regardless of ABS and at probably the same speed (especially on ice). This will also happen regardless of whether going straight or around a corner. If going too fast around the corner with ABS, the wheels will not lock up but instead of sliding right away, you're not able to scrub off any speed and thus end up spinning out later in the corner. I'd much rather get sliding with wheels locked up and then try to steer when I release the brakes. I'm not sure if I can explain this well - I'm talking about a slide caused by locked up wheels versus one caused by the vehicle loosing traction due to weight transfer and speed. Just a different way the vehicle handles when the slide happens. I'm not saying one is better than the other but I don't like the latter unless induced on purpose.

Like you said: "To each his own.". I just got a little enflamed by the remark that I'm an idiot for disconnecting ABS. If I remember correctly, cars did not used to have ABS to begin with. It was put on vehicles because idiots would not know how to control a slide. I'm definiteluy no Schummy and I don't even claim to be any good. But for the situations I encounter I prefer my foot to ABS. For those I can't predict, who's to say if ABS would be better.

BTW, I can use the ABS quite well, It just requires a different driving style and different judging of surfaces and braking distances. I just don't like it and since I have other vehicles without ABS, I don't feel like complicating my life.

Laters...

By Discosaurus (Discosaurus) on Friday, August 24, 2001 - 09:42 am: Edit

Well, if it's doing it on dry pavement and you're not totally slamming the brake pedal, then something IS wrong with the system ! I don't blame you for disconnecting it !

If ABS is working properly, I think it's great. And, the less skilled the driver, the greater it is !

Do F1 cars use ABS now that the ban on traction control is gone ?? Racers I've talked to have mixed feelings on ABS but most agree it's helpful much of the time. I know F1 never used ABS because of the traction control ban - too easy to use the same system for both

keith
discosaurus

By milan on Friday, August 24, 2001 - 11:47 am: Edit

Keith,
I'm talking strictly ice. On dry/wet roads it's probably better but as I mentioned before, I don't care for it anyhow. Also, when talking F1 or racing in general, I think things change a bit as speeds and distances increase greatly, so a mechanisms that can react and act faster than humans become beneficial. On the other hand I'm very old-fashioned (to a point of technocracy), so I prefer manual transmissions and cable operated throttle on a carb over an electronically shifted, fly-by-wire, EFI contraptions.

By Milan on Friday, August 24, 2001 - 11:48 am: Edit

PS. By ice I meant snow and ice - basically any low friction conditions.