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ABS help

733 Views 10 Replies 5 Participants Last post by  Spitz
On my recent purchase of a 1998 K2500 I have discovered that the ABS brake system is not working. Someone took the ABS fail indicator lamp out of the instrument panel so I didn't know they didn't work. I have no computer codes on the ABS but the light is now on (working).
Some said that the front wheel sensors should read about 1500 ohms each, I tested each side and they are open. They also said if I spin the wheels by hand I should read 250mv AC I think, but I have not had a chance to try this. I seem to have power at the wire terminals, so it appears they should work. Any thoughts on this?
If anyone can steer me in the right direction, I would appreciate any help or leads. The conventional brakes work fine BTW, just no pulsing in the snow/ice on lock - up.
Thanks In Advance
1 - 2 of 11 Posts
Well if both of the senors are open you wont generate anything.. Bad wheel (loose) bearings usually cause these problems.. The coil itself is very very thin wire.
The bad wheel bearing will take out the wire inside of the hubbed housing.. If it gets loose enough that is, sometimes it doesnt take a lot because the clearances arent all that far apart.
1 - 2 of 11 Posts
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