stitchrr
Joined:
Oct 2011
milford ma.
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Is there any info on diognosing problem when the abs light is on? i didn't see anything in the tech topic for just the abs.
RJR
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goldwing
Joined:
Aug 2009
North Carolina
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Mine came on when the little brake pressure switch sensor went bad.
The sensor I'm refering to is located on the distribution block/all the metal lines into one block,... its on the fire wall, just under the end of the big metal block at the end of the fill bottle.
I suppose it could be a number of things though.
Of course the first thing to do would be look for any obvious leaks and low fluid level.
T.C:87 5 speed
HOLSET(HE341/HY35W type-D),255 Walbro, No intercooler yet,8lbs boost,Timing @ 9,Low& C.C Plates & SN-95 Bumpsteer Kit, KYB-AGX Struts,Belt driven fan,Custom oil cooler feed,Relocated ECT,Relocated TFI,N/A Hood, showing 178K
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stitchrr
Joined:
Oct 2011
milford ma.
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no leaks. will check the sensor. are these available new?
RJR
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Jeff K
Joined:
Apr 2001
Milwaukee, WI
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^^^^ the brake pressure switch has zero connection with the ABS system. The switch is only connected to the PRC system, which, in turn, isnt connected to the ABS system in any way. Only way the leaking switch could set off the ABS light is if the fluid level dropped due to the leak.
To the OP..... you can run the ABS codes using the ABS test connector in the trunk and watching the ABS light flash out codes. The most common problem is the cables to the wheel sensors breaking internally due to 25 years and hundreds of thousands of miles for flexing. Wheel sensor output and cable integrety can be easily tested using a DMM. I think there are instructions somewhere here or on JTs site (tbirdheratage or something like that). Another common problem is rust on the tone rings or sensors themselves interfering with the magnetic field between the sensors and tone rings. Even loose wheel bearings can set an ABS code as the gap between sensor and tone ring is upset.
Jeff Korn
88 Turbo Coupe: Intake and exhaust mods, T3 turbo at 24 psi, forced air IC, water injection, BPV, Ranger cam, subframes, etc., etc.
86 Tbird 5.0 (original owner): intake, exhaust, valvetrain mods, 100 HP N2O, ignition, gears, suspension, etc., etc.
11 Crown Vic Interceptor
14 Toyota Camry (wifes car)
95 Taurus GL Vulcan winter beater
67 Honda 450 Super Sport - completely customized
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Pete D
Joined:
Apr 2001
Northern OH
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See this about pulling the ABS codes, a good place to start.
http://natomessageboard.com/cgi-bin/ulti...114#000000
Pete Dunham
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goldwing
Joined:
Aug 2009
North Carolina
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Well, that means I have a problem too.
I thought my pressure sensor was the issue.
I never found a new switch by the way. I just plugged it/welded it shut.
T.C:87 5 speed
HOLSET(HE341/HY35W type-D),255 Walbro, No intercooler yet,8lbs boost,Timing @ 9,Low& C.C Plates & SN-95 Bumpsteer Kit, KYB-AGX Struts,Belt driven fan,Custom oil cooler feed,Relocated ECT,Relocated TFI,N/A Hood, showing 178K
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stitchrr
Joined:
Oct 2011
milford ma.
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thank for all the input so far.working on it
RJR
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