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1987 - 1996 F150 & Larger F-Series Trucks
Speed sensor question

1987 - 1996 F150 & Larger F-Series Trucks 1987 - 1996 Ford F-150, F-250, F-350 and larger pickups - including the 1997 heavy-duty F250/F350+ trucks

Speed sensor question

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Old

Oct 12, 2010 | 09:51 AM

#1

Duct Tape Racing

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Elder User

Joined: Jul 2010

Posts: 960

Likes: 3

From: Saint Charles, Missouri

Speed sensor question

I recently swaped out my rear axle with one out of a 1989 f150. My truck is a 1994 f150 and it's an 8.8 just like my old one and the speed sensor connects up but for some reason my speedo doesn't work and my odometer doesn't rack mileage. Do I need to buy a connector for an 89 and swap it with the one I have on my truck? Any imput would be amazing! Thank u

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Old

Oct 12, 2010 | 10:42 AM

#2

thechief66

Laughing Gas

Joined: Aug 2010

Posts: 979

Likes: 40

From: Colorado Springs CO

Both those years show to take the same speed sensor (Motorcraft DY1123). Maybe your wiring got damaged during the swap, or the sensor just picked that time to take a dump?

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Old

Oct 12, 2010 | 11:37 AM

#3

TrentB

New User

Joined: Oct 2008

Posts: 4

Likes: 0

check the wiring first. i replaced my sensor and then noticed that the wires were destroyed. i had to run new wires.

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Old

Oct 12, 2010 | 11:46 AM

#4

jpcnorthwood

Senior User

Joined: Feb 2009

Posts: 234

Likes: 0

I just replaced mine and found the wires are in terrible shape. Rewire yours and see if that fixes it.

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Old

Oct 12, 2010 | 12:46 PM

#5

Conanski

FTE Legend

Joined: Jun 2006

Posts: 31,930

Likes: 1,499

From: Ottawa, Ontario

Put the sensor from your old axle into the replacement.. maybe the sensor that's in there is shot.

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change, dy1123, motorcraft, sensor

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