is this causing the abs sensor to go off?
Thread Starter
Burning Brakes
Joined: Aug 2003
Posts: 944
Likes: 0
From: Mesa Az
is this causing the abs sensor to go off?
following the two steel brake lines up to the brake cylinder - right in between the front brake line and rear brake line is a broken plug that connects to a wire of some type. would this broken plug cause the abs sensor to go off? autozone doesn't even know what the part is, and my ALDL port (is that what it is called) shows only code 12.
sorry if description is bad i just bought the car and am learning lots of things on it fast. btw. it is a 91 conv.
sorry if description is bad i just bought the car and am learning lots of things on it fast. btw. it is a 91 conv.
Drifting
Joined: Jul 2000
Posts: 1,298
Likes: 0
From: Jupiter Sunny Florida
Re: is this causing the abs sensor to go off? (mistaben)
Sounds to me like the proportioning valve switch wire. It isn't an ABS problem and with it disconnected the "brake" light will not come on if there is a failure in the hydraulic brake system.
I would get it fixed ASAP.
PS, stay away from "Autozone", and go to a good shop or GM dealership!
I would get it fixed ASAP.
PS, stay away from "Autozone", and go to a good shop or GM dealership!
Cruising
Joined: Jun 2003
Posts: 13
Likes: 0
From: Manchester NH
Re: is this causing the abs sensor to go off? (mistaben)
Bring it in and have it fixed- don't mess w/ brakes! My daily driver (94 G Am) had a broken sensor wire which was a fairly cheap fix ( $40 aside from the $90 dignostic). Do you have the BRAKE warning vs. the ABS warning?
Thread Starter
Burning Brakes
Joined: Aug 2003
Posts: 944
Likes: 0
From: Mesa Az
Re: is this causing the abs sensor to go off? (gybonz)
brake light on top of the tach parts comes on at start up. ABS on the right dash part just comes on stays on. so does the low oil light, but the sensor has been removed.
Race Director
Joined: Sep 2001
Posts: 14,680
Likes: 752
From: NEwhere Ohio
Re: is this causing the abs sensor to go off? (mistaben)
On my 93 car, I found the inductive sensor on the rear hubs to have all kinds of gunk/metal filings sticking to it (must be a magnet).
With a rear wheel removed, it was easy to remove the sensor (one screw) pull it out and clean it off.
Cleaning off both rear wheel lock-up sensors seemed to prevent the cars ABS light from going off as much during normal driving.
THe front ABS sensors are unaccessible, as they are integral with the hub/bearing assembly.
With a rear wheel removed, it was easy to remove the sensor (one screw) pull it out and clean it off.
Cleaning off both rear wheel lock-up sensors seemed to prevent the cars ABS light from going off as much during normal driving.
THe front ABS sensors are unaccessible, as they are integral with the hub/bearing assembly.
Le Mans Master
Joined: Jul 2002
Posts: 5,818
Likes: 2
From: Alive and well in Burlington NC
Re: is this causing the abs sensor to go off? (Q1KSLVR)
Sounds to me like the proportioning valve switch wire. It isn't an ABS problem and with it disconnected the "brake" light will not come on if there is a failure in the hydraulic brake system. I would get it fixed ASAP.
Is your ABS light on constantly? The unit will self test at around 3 MPH. The light will come on briefly and the ABS unit will "moan".
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Pro
Joined: Aug 2002
Posts: 715
Likes: 0
From: Warner Robins GA
Re: is this causing the abs sensor to go off? (mistaben)
I'd be willing to bet that you have a bad sensor.
When I first bought my 88, my ABS light would come on as soon as I started moving. Since the ABS module is pretty much non servicable (to people like me), I started with the wheel sensors.
You'll need to take the rear wheels off to get to the rear sensors, but only one bolt holds it in. Pull it out and clean it. On mine, one of my rear sensors visibly had the notch on the end broken off somehow. I was able to access and remove my front sensors by just turning the wheels and removing the bolt. All four of them were covered with dirt and stuff, which I cleaned, but replacing the one that was broken fixed my problem.
When I first bought my 88, my ABS light would come on as soon as I started moving. Since the ABS module is pretty much non servicable (to people like me), I started with the wheel sensors.
You'll need to take the rear wheels off to get to the rear sensors, but only one bolt holds it in. Pull it out and clean it. On mine, one of my rear sensors visibly had the notch on the end broken off somehow. I was able to access and remove my front sensors by just turning the wheels and removing the bolt. All four of them were covered with dirt and stuff, which I cleaned, but replacing the one that was broken fixed my problem.
Race Director
Joined: Sep 2001
Posts: 14,680
Likes: 752
From: NEwhere Ohio
Re: is this causing the abs sensor to go off? (mistaben)
the moaning noise at about 4 mph is a normally self-check of the ABS.
When I first heard it, i thought it was a bad wheel bearing, ujoint or something.
When I first heard it, i thought it was a bad wheel bearing, ujoint or something.
