Losing a sensor?
My old man's pick up had a similar issues we finally ended up finding some wires had been cut close to were the main harness for the rear of the truck connects. Check behind the drives side fender well there should be a big connector there, make sure it is good and tight. May want to disconnect and make sure no FOD is in there.
Just a thought.....
Just a thought.....
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Diesel Enthusiast
Joined: Feb 2011
Posts: 470
Likes: 29
From: Alaska
When mine did that, it turned out to be the speed sensor in the rear axle. The ABS box behind the glove box has an OBD function. Taped to a wire bundle below it you will find a single wire with a connector going nowhere. Grounding that wire will make the ABS light flash. The number of flashes are codes for faults it has detected.
Diesel Enthusiast
Joined: Jul 2010
Posts: 313
Likes: 26
From: South Carolina
When mine did that, it turned out to be the speed sensor in the rear axle. The ABS box behind the glove box has an OBD function. Taped to a wire bundle below it you will find a single wire with a connector going nowhere. Grounding that wire will make the ABS light flash. The number of flashes are codes for faults it has detected.
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