VSS
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Trailering
Joined: Oct 2023
Posts: 22
Likes: 1
VSS
Hello. So I have a 95 f150 with 4r70w. I recently replaced the sensor in the rear and the transmission. Since I've done that the speedometer is bouncing bad never had before. Hard shift from 1-2 is gone. So I put the Old one back in the transmission same. I have to see if I can find the old one on the back diff. What one actually controls the Speedo?
Fleet Owner
Joined: Oct 2005
Posts: 20,783
Likes: 1,751
From: Kentucky
Rear axle VSS is used for the Rear Anti-Lock Brakes (RABS) and the speedometer/odometer like all 1992 and later trucks.
OSS transmission sensor is used for transmission control by the computer (PCM).
OSS transmission sensor is used for transmission control by the computer (PCM).
Hotshot
Joined: Jul 2020
Posts: 10,270
Likes: 2,568
From: Near Salt Lake City
Not all
The 4x4s still have a VSS in the transfer case (up to 97 at least)
The input and output shaft sensors in the trans (like rla2005 said), are just for the trans
Check the plug (connector on that rear axle sensor if a 4x2) for your problem
Check for hair on that magnetic rear axle sensor (excess metal filings)
The 4x4s still have a VSS in the transfer case (up to 97 at least)
The input and output shaft sensors in the trans (like rla2005 said), are just for the trans
Check the plug (connector on that rear axle sensor if a 4x2) for your problem
Check for hair on that magnetic rear axle sensor (excess metal filings)
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