spedometer issue
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5th Gear
Joined: Sep 2022
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spedometer issue
hey so on my 1992 f250 7.3 the speedometer doesn't work properly it goes back and forth about 20 mph difference constantly so I never know how fast I'm truly going. what is the most likely cause of this? and is it hard to fix? Thanks!
Logistics Pro
Joined: Nov 2013
Posts: 3,928
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From: Mojave, Ca
This is one of those problems where it's easier to throw a part at it than diagnose it.
on the rear axle housing, on top the center section, there's a black sensor with 1 harness connection and 1 10mm screw holding it on. That's the vehicle speed sensor. Replacement sensors are about $20, or cheaper if you get it from rock auto.
If you change that sensor out and you're still having problems, then you'll need to use a multimeter and find where the high resistance/problem is coming from.
on the rear axle housing, on top the center section, there's a black sensor with 1 harness connection and 1 10mm screw holding it on. That's the vehicle speed sensor. Replacement sensors are about $20, or cheaper if you get it from rock auto.
If you change that sensor out and you're still having problems, then you'll need to use a multimeter and find where the high resistance/problem is coming from.
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5th Gear
Joined: Sep 2022
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I just changed the vss sensor now the truck dosent shift
i ain't rite
Joined: Mar 2005
Posts: 65,562
Likes: 5,600
From: Marlboro Mental Hospital.
motorcraft part or aftermarket? when i comes to sensors for fords, i always use motorcraft.
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