ABS Light Stays ON ????

[LTJDS]

My good friend and co-worker at the Fire Station is having a prblem with his ABS light staying On.
He has a 2002 SD 4x4 w/ the 7.3L PSD. Lifted 6" and runnin' 22" Weld Rims.
The problem has not been consistent with the time that the lift and rims were installed. Trying to narrow down the possible causes, one of "his" Mech said A/C Drain water was interfering with his sensors ??? sounds like BS
I had a 2x4 2002 7.3L and had no similar problems... anyway
Any suggestions on what to check or if he can pull a code at the dealer would be great to know. Anyone ever have a similar problem on a 7.3L 4x4,
& what it took to remedy the situation would help us head in the right direction. Thanks Fellas'

[Rob]

have him ohm the wheel speed sensor to make sure it isnt bad, or just replace it, they are pretty inexpensive, it is located on top of the rear end, he may have a broken wire or something along the harness running to the sensor. if not the sensor, it may be the ABS control module, they can get a little $$$, not sure if they have to be programmed or not.

[Sabre2th]

As Rwalker said, most likely the speed sensor. They have a tendancy to go out, sometimes just loose connection, especially with lifts....
Tom

[LTJDS]

Hey yall thanks for all the info , that gives us a great place to START..

[Diesel Nick]

Well another thing if you have something to pull the codes odbII you can check to see if there is a code if it says no communication with abs control module then you know your module is bad. Hope that helps.

[lilredpowerstroke]

Hey John are his hub assembilies going bad. Mine did the same thing and then the assembly started to really make squeeling noises so I changed it out and viola the light went out. Just another option to look at.

[LTJDS]

Hey TJ and all others who have responded
You guys Rock Out !!! Thanks Again for all the great info.
PS: I love this site as i am sure you all do too..... b-safe and thanks a million.

[Rob]

hey bud, if it ends up being a speed sensor i found a website that had some for sale, they were new in box and were no more than 30 bucks, just to give you an idea of what they cost. im sure the local Napa or autozone will have the same price.