Hey all.
99 Denali OBS (GMT400) 302k miles. Been trying to sort out an abs issue that im having. Seems to be common and Ive seen posts all over about it. The abs acts up and engages on dry pavement at low speeds when coming to a stop. Really dangerous actually. Almost hit a few things while trying to diagnose.
Anyways, I tried cheap fleabay replacement abs sensors, no difference. Went a head and put two new timken bearings in. They come with new abs sensors installed. Put dielectric grease in the connectors from the abs module and also between the speed sensors and the wire that runs to the module. No difference.
Just got a proper scan went for a drive with the scanner attached. Scanner showed codes relating to the front left wheel speed sensor having issues. While driving, the scanner showed the reported speeds from both front left and right side sensors. The left sensor would show the correct speed intermittently.
So...where could my issue be? Where to start looking? Does GM sell a replacement wire that runs from the speed sensor to the abs module? Is it possible that it is my abs module? I think its a kelsey hayes 310. Is it a bad ground?
Any advise appreciated. I don't mind driving with the abs fuse out but winter is coming and I worry about others driving the truck without abs in bad weather. Thanks in advance and Happy Holidays!
99 Denali OBS (GMT400) 302k miles. Been trying to sort out an abs issue that im having. Seems to be common and Ive seen posts all over about it. The abs acts up and engages on dry pavement at low speeds when coming to a stop. Really dangerous actually. Almost hit a few things while trying to diagnose.
Anyways, I tried cheap fleabay replacement abs sensors, no difference. Went a head and put two new timken bearings in. They come with new abs sensors installed. Put dielectric grease in the connectors from the abs module and also between the speed sensors and the wire that runs to the module. No difference.
Just got a proper scan went for a drive with the scanner attached. Scanner showed codes relating to the front left wheel speed sensor having issues. While driving, the scanner showed the reported speeds from both front left and right side sensors. The left sensor would show the correct speed intermittently.
So...where could my issue be? Where to start looking? Does GM sell a replacement wire that runs from the speed sensor to the abs module? Is it possible that it is my abs module? I think its a kelsey hayes 310. Is it a bad ground?
Any advise appreciated. I don't mind driving with the abs fuse out but winter is coming and I worry about others driving the truck without abs in bad weather. Thanks in advance and Happy Holidays!