My ABS and Traction control have been out for a month now. Wanna fix 'em before winter. I'm gonna take the car to the dealer for the $70 diagnosis, then go from there. I'm betting it'* the ABS control box or the valve/pump assembly. Makes sense, they're the most expensive. B&R Auto Wrecking (our newest member) has both in a 94SE. My question is this.....how common was traction on the SE, and is the pump on the valve assembly below the airbox an indication of traction, or did all cars use the same part? This SE'* pump/valve assembly looks identical to mine, but I guess I should have compared part numbers on both parts while I was out there rooting through the dead cars. Deathrat, can you do your magic on this one, or anyone else? :?: :P :P

No.. I cannot answer it.. but I do however really don't notice that much of a diiference between traction control on and off... well.. a little.. if I want a good launch.. I have to take traction control off and do it manually through the gas peddle. ( not going to WOT right away ), and the car seems to pick up a hell lot quicker in drag condition.. ( eating rice ). However, I find that I can still do burn outs and all while traction control is on.. on the companies PT Looser.. it too has traction control and always seems to work.. the tire doesn't chirp unless I corner hard or take traction off..there is no codes that tells me anything is wrong... am I just too heavy on the gas ???? ( I can't believe I just asked that )

When my traction worked, it worked great. This thing has too much stinkin power for wet or snow, and I'd rather just know the traction will take care of itself. More important than that is the ABS. I know the fault it threw was ABS, and that took out the traction, cuz traction components can't throw an ABS light, so I'm looking for an ABS component failure that is shared by the traction control system.

The unit below the air box is just the ABS pump for the anti-lock brakes. The Traction Control ("NW9") is part of the Channel Plate in the actual transmission.

Ok, I'm gonna argue with the demi-god. The 91-93 Bonnies use applied braking for traction control. The system is the Teves Mark IV Anit-Lock brake system. The EBCM controls the isolation valves (the pump is already at pressure) and sends pressure to the appropriate wheel to prevent slip. It pulses, just like ABS. Kinda just the opposite.

True but are you talking about the Final Drive Traction Control or the ABS Traction Control? :? Sounds like you're talking about the ABS unit.........The Traction Control (switches next to shifter) are for the Transmission'* Channel Plate to adjust valving.

Ok. I didn't know that last part, but now that we're on the same page, go back to my original post, and assume it'* the ABS traction. Will any parts work? Are they the same units, with or without traction? HELP ME DEMI-GOD!

The MOST COMMON failure in the ABS System is the sensors and/or harness. There is 4 wheel speed sensors. Sometimes these sensors get damaged but most times it'* the wiring harness that attaches to them. You can get a "Jumper Wire" harness from the GM dealer. The bad news is most sensors ONLY come with the Hub Bearing Assembly though. Now depending on the ABS Code retrieved depends what needs to be fixed. Usually the main ABS unit hardly ever fails thank god! You can check the wheel sensors yourself by looking at the wire harness that connects to the wheel sensor. Look for unplugged or damaged wires!

Been there with the sensors already. Cleaned contacts, pressure washed the back side of the hubs. I'm just gonna have to drop some cash for the diagnosis. I heard somewhere that the sensors ARE available seperate. Read it somewhere around here in an early post.

I would have to say you have one other choice. Have you flushed your system and done it with a fair amount of pressure? The other big reason for this light is for particulates in the valves. I replaced my master cylinder and when I did it I pumped alot of air and fluid through it basically due to the change. The interesting thing was when I did this the abs light went off. It came back on one other time but since it has stayed off. This solution seemed to work for me.

Ty