ABS engaging on Dry Pavement? - Page 3 - Ranger-Forums - The Ultimate Ford Ranger Resource


Drivetrain Tech General discussion of drivetrain for the Ford Ranger.

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  #51  
Old 11-08-2006
04 EDGE
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Quote:
Originally Posted by INT3RC3PTOR
no, our trucks measure speed at the t-case..or trany..i think its the t-case

maybe 2wd its the rear end
wrong

theres 3 sensors, one at each front wheel and one in the rear axle housing.
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  #52  
Old 11-08-2006
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I just got a new hub today from Ford and it came with a new ABS wheel speed sensor. One of these days if the programmer does not fix it Mark we can install my old one on your truck its the same one, if I remember correctly it is and see what happens.
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  #53  
Old 11-08-2006
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Alright sounds good
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  #54  
Old 11-08-2006
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Quote:
Originally Posted by 04 EDGE
and the rear ABS sensor is also the speedo sensor there is no seperate sensor for the rear, whoever told you that dosent know what there talking about.
The source of the raw vehicle speed pulse varies by year:

98~2000 use the same diff housing sensor for the rear axle ABS and for the raw VSS pulse. Speedometer correction for tire size is done in the GEM for RABS or in the 4WABS Module for 4WABS.

2001~current have the rear diff ABS sensor but there is a separate Output Shaft Speed sensor on the transmission that supplies the raw vehicle speed pulse to the PCM. The OSS reads a tooth wheel on the output shaft. Speedometer correction for tire size and axle ratio is done in the PCM.

95?~97 also have the rear axle ABS sensor but use a gear driven VSS signal generator on the trans or transfer case. Speedometer correction for tire size and axle ratio is done by interchangeable gears similar to a speedometer cable.


ABS:

RABS trucks use only the single diff housing ABS sensor. 4WABS adds individual sensors at each front wheel. All Rangers have had standard 4WABS since 2001.
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  #55  
Old 11-08-2006
04 EDGE
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you enjoy correcting me dont you bob
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  #56  
Old 11-08-2006
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Originally Posted by 04 EDGE
you enjoy correcting me dont you bob
Not at all. Just pointing out that Ford did it differently in different years.
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  #57  
Old 11-08-2006
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yeah all i see anymore is crown victoria's, police interceptors.
they get somewhat booring to work on, the cops are hard on them.
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  #58  
Old 11-08-2006
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Bob - do you think its the sensors? Maybe getting a rust build-up?
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  #59  
Old 11-08-2006
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Originally Posted by 01xltranger4x4
Bob - do you think its the sensors? Maybe getting a rust build-up?
I don't have a clue but I'd look into Mark's suggestion. It sounds like he's seen a lot of them.
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  #60  
Old 11-08-2006
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Quote:
2001~current have the rear diff ABS sensor but there is a separate Output Shaft Speed sensor on the transmission that supplies the raw vehicle speed pulse to the PCM. The OSS reads a tooth wheel on the output shaft. Speedometer correction for tire size and axle ratio is done in the PCM.
i knew i was kinda right :P ...
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  #61  
Old 11-09-2006
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^ oh quiet Andy, your alaways "kinda right" haha j/m man!
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  #62  
Old 11-09-2006
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yeah yeah.. haha
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  #63  
Old 11-02-2008
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Sorry to bring up an old thread but I think this is pretty much my problem (ABS engaging on flat roads and slow speeds). So how can I disable the ABS or what is the best way to take a look at the ABS sensors to clean them? I am not sure what they look like or where exactly they are located. Any help would be appreciated. Also if anyone found a fix for this please let me know. Oh yeah I am running 31's on steel wheels.
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  #64  
Old 11-03-2008
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pull the fuse...just don't ride peoples A$$es and you will be fine lol
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  #65  
Old 11-04-2008
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Originally Posted by 99offroadrngr View Post
pull the fuse...just don't ride peoples A$$es and you will be fine lol
I tried but the OD light would blink and shift pretty bad also I lost the speedo. I think its a fail safe so you can't mess with mileage (odometer would not spin). Anyone else have this happen when they pulled the #14 fuse in the cab box?
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  #66  
Old 11-20-2008
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I have this problem to I went to a local repair shop to try and get it fixed they replaced the front left sensor and the rear sensor and it cost me $450 dollars. a week later it was doing it again, took it back got the front right cleaned off and still does it. I guess I just have to live with it.
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