ABS light on
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Junior User
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ABS light on
My ABS light came on the other day. I also heard the ABS unit pulsing without touching the brakes. I checked the codes and the scanner comes up with nothing. I do have a caliper that is sticking that I am replacing this weekend. I am not sure if that could be the cause? I also had my bed loose on the truck to install a gooseneck hitch last weekend. Maybe I hit a wire? What else should I check?
FTE Leadership Emeritus
Joined: Jul 2002
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From: Long Island USA
If the ABS unit is pulsing, it's seeing a wheel not spinning, but not finding any wiring issues on power-up.
Sounds like a bad wheel bearing, actually.
But like cartmanea said, you really need a scanner that can read ABS codes, otherwise it's a crap-shoot.
Sounds like a bad wheel bearing, actually.
But like cartmanea said, you really need a scanner that can read ABS codes, otherwise it's a crap-shoot.
Lead Driver
Joined: Jun 2007
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From: Corvallis, OR
Not really that will read ABS codes. Auto Enginuity reads them, its about $340 and very useful. You might try going to your state's section here and seeing if someone local to you would be willing to scan it. Other than that, dealership and $80-100 to scan. You could also check with a few brake shops, some have scanners that rear ABS codes and will charge you like $25.
FTE Leadership Emeritus
Joined: Jul 2002
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From: Long Island USA
What year and what engine is the truck?
Does the speedometer bounce? If so, it's the rear sensor getting dirty or going bad.
Also, you might want to actually pull the front ABS sensors, check if they are covered in metal, and that they are actually fully seated into the unitized wheel bearing.
Otherwise, it might be worth getting the ABS codes read and reporting back here to figure out what to do next.
Does the speedometer bounce? If so, it's the rear sensor getting dirty or going bad.
Also, you might want to actually pull the front ABS sensors, check if they are covered in metal, and that they are actually fully seated into the unitized wheel bearing.
Otherwise, it might be worth getting the ABS codes read and reporting back here to figure out what to do next.
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I had the the truck scanned. I found a shop in the area that didn't charge me for it.
There is a fault in the RF speed sensor. They didn't give me the code #.
2006 F-250 4x4 6.0l diesel crew cab
Can i test the ohms on it to see if it is bad? Could is be dirty?
There is a fault in the RF speed sensor. They didn't give me the code #.
2006 F-250 4x4 6.0l diesel crew cab
Can i test the ohms on it to see if it is bad? Could is be dirty?
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From: Scio, OR
It might help if you got the actual code. It appears there are two. One for circuit failure, one for signal erratic/missing.
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I checked the wire for resistance last night and didn't get anything. I cam going to double check since it is hard to get to the male pins in the plug.
Elder User
Joined: Dec 2008
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From: North Carolina
Well that's what I did wrong, lol where were you when I was doing this?
Tons of corrosion was the real problem. It was time to replace the bearing anyway.
Tons of corrosion was the real problem. It was time to replace the bearing anyway.
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