[Shotimes] ABS light comes and goes

Wed, 25 May 2005 13:23:15 -0400

My problem was weather dependant also in a way.  Started off the light would
come on when it runs a cycle test at 15 or 20 mph can't remember which, but
it did it when it was fairly cold 40f or cooler then started doing it or
warmer and warmer days till it would always come on no matter the outside
temp.  Well after pulling the codes there is a relay for the motor and the
plug connection had built up a ton of corrosion in that connection so when
the plug was warm it would expand and make contact but when cold it
wouldn't.  After chasing this for a bit I found the problem and cleaned it.
When I pulled the plug apart it looked like a battery terminal all nasty and
such.

-A.J.

-----Original Message-----
From: cmichaelo@optonline.net [mailto:cmichaelo@optonline.net] 
Sent: Wednesday, May 25, 2005 1:13 PM
To: Juillerat, Aaron J
Cc: jkoper@frankgates.com; shotimes@autox.team.net
Subject: Re: RE: [Shotimes] ABS light comes and goes

I had a similar problem once.

The abs light wouldn't come on until I drove the car AND stepped on the
brake.  It didn't always happen.  Rainy days sound familiar.

I didn't pay attention to the exact speed at which this happened.  But I can
imagine I was going faster than 15mph.  And I don't remember it happening in
parking lots, driveways, and so on.

The were no codes set.  Ford diagnosed the crap out of it, and threw their
arms up.

The problem started occuring right after Ford did some work on the rear
brakes.  I alwyas suspected the mechanic had done something he shouldn't.
The problem eventually went away after I replaced the rear hubs, which come
with new abs rings.  So somehow the problem was related to these rings.

The old rings looked fine.  I.e., they were rusted but perfectly shaped and
round.

I'm speculating the mechanic did something to change the magnetic properties
of the rings, since the abs sensor senses variations in magnetic response
from the rings.

Did you have any work done on your car around the time where this abs
problem started to occur?

Michael
94MTX,green,BOS+,Koni/Intrax,Baer,Corbeau
SHO items for sale: http://hometown.aol.com/cmichaelo/for_sale.html

----- Original Message -----
From: "Juillerat, Aaron J" <aaronj@autojectors.com>
Date: Wednesday, May 25, 2005 12:14 pm
Subject: RE: [Shotimes] ABS light comes and goes

> Does the light come on as soon as you start the car?  Or does it 
> come on
> after you are over 15mph or so?
> 
> -A.J.
> 
> -----Original Message-----
> From: Paul L Fisher [sho@paul-fisher.com] 
> Sent: Wednesday, May 25, 2005 11:32 AM
> To: jkoper@frankgates.com; shotimes@autox.team.net
> Subject: RE: [Shotimes] ABS light comes and goes
> 
> Bleeding has nothing to do with the ABS light. Have you had the codes
> pulled?
> 
> 
> Paul L Fisher
> 
> Visit my website: http://www.paul-fisher.com
> SHOClub Member: http://www.shoclub.com
> Amsoil dealer: http://www.paul-fisher.com/oil
> 
> -----Original Message-----
> From: shotimes-admin@autox.team.net [shotimes-admin@autox.team.net]
> On Behalf Of Jim Koper
> Sent: Wednesday, May 25, 2005 10:09 AM
> To: shotimes@autox.team.net
> Subject: [Shotimes] ABS light comes and goes
> 
> Over the past year or so my ABS light has come on from time to 
> time. It'll
> stay on for days or weeks at a time, then go away. I thought it 
> might be
> related to a bad brake bleed (I've since rebled) or a particular 
> weathercondition (it came on during a rainy day, but the ABS light 
> does not follow
> any certain weather pattern), or a bad sensor ( I cleaned it, was 
> not bent,
> no teeth missing). The only thing I haven't done is electrically 
> test the
> sensor. Any info on how to do that?
> 
> Years ago when racing (SHOklahoma, 2001) the ABS would kick in a 
> lot when
> entering the hairpin turns. It probably should not have activated 
> at all!
> 
> Does it sound like a bad ABS sensor somewhere? Thanks for any info.
> 
> Jim Koper
> 1992 red on black
> 151,000 miles
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