ABS Light
Post Fiend
Joined: Feb 2007
Posts: 5,078
Likes: 0
From: Rural WV
Need more info....was it blinking or steady? Did it come on at startup and stay on or did it come on why driving? What were the conditions? Loaded or towing?
My first impression is that there is an electrical problem somewhere.
My first impression is that there is an electrical problem somewhere.
Elder User
Joined: Feb 2004
Posts: 754
Likes: 0
From: Cedar Springs,MI
It did last winter with about 4000 miles on it. I went up to the dealership and told them the speedo was all over the place. I had not drove the truck in about a month and it sit's in an unheated garage. The dealer said that the speedo acting up is a common thing, no fix other than driving it more.
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Senior User
Joined: Jul 2006
Posts: 136
Likes: 0
I had a similar problem, mine would come on only after driving on log trips – couple hours or more. I just replaced my rear VSS Part # 6L3Z9E731A $74.44. It hasn’t come on since but I haven’t taken a long trip since, so I’ll just wait and see. I talked to a tech (trying to schedule a time, but they were backed up) and he said that they rarely see the front ones go out, for what that’s worth. Its only a 10min job, the sensor sits right on top of the pumpkin you cant miss it. You only need a 10mm (I think) socket. You also might get away with only just cleaning it.
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---------------- 2005 F250 XLT NO MODS
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Brett Foote
Elder User
Joined: Dec 2001
Posts: 578
Likes: 0
From: Massachusetts, USA
I have had a similar problem helping my buddy with his 99 f350 srw. He has replaced the VSS,( the old one looked fried) drained and cleaned the rear diff and for some reason his speedometer likes to sit at 40 mph or work fine?
Any thoughts? Bad cluster? Bad Ground?
Any thoughts? Bad cluster? Bad Ground?
Junior User
Joined: Dec 2007
Posts: 88
Likes: 0
From: Magnolia Texas
Have them check both VSS's. One is in your Tranny and there is one in the Rear Diff. I bought the one in the rear diff at AutoZone for 25$ or so and used a metric size wrench to replace mine. Done in about 15 min. the dealer was going to check both of mine and the cluster...for some ridiculous amount..
I got the trouble shooting from this very forum and it has saved me a lot of $ in mainteneace costs at the dealership!
Mine did the same thing on a trip with a trailer from Birmingham.
I got the trouble shooting from this very forum and it has saved me a lot of $ in mainteneace costs at the dealership!
Mine did the same thing on a trip with a trailer from Birmingham.
Senior User
Joined: Jun 2005
Posts: 261
Likes: 0
I ordered BRAB130 model sensor for the diff... turns out it is the wrong one for mine. I need a 6L3Z9E731-A according to the dealer and you can't get this one at auto zone. Dealer only. Yeah, it is a 10 mm bolt and easy to change. I hope it is this sensor ($85 dealer price) rather than the cluster (again).
I don't think the 6-speed manual has another speed sensor on it?
I don't think the 6-speed manual has another speed sensor on it?