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Old Jan 2, 2025 | 12:32 PM
  #1  
Colton horn's Avatar
Colton horn
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From: College station tx
Speedometer

now my speedometer will only go up to about 40 mph reading even if I'm going faster it won't go higher I assume it's the speed sensor that's in the rear diff needing to be changed it seems pretty accurate up til it gets to about 40 mph then the needle like sticks there and doesn't move any higher the faster I go.......
 
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Old Jan 2, 2025 | 02:02 PM
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udsuth78
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From: Ponca City, OK
You can try cleaning the sensor first. Sometimes it can build up with metal dust that will throw it out of whack.
 
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Old Jan 3, 2025 | 07:26 PM
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Colton horn
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Next

So I just went ahead and put a new speed sensor in the rear diff hoping that would solve my speedometer issue but unfortunately it still won't go over about 40 mph no matter what my actual speed is so where/what should I goto and check next?
 
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Old Jan 3, 2025 | 07:35 PM
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could be a broken tooth in the cluster? Either way, I think the only other thing could be the cluster itself, not sure
 
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Old Jan 3, 2025 | 09:06 PM
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Colton horn
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From: College station tx
Speed sensor

Originally Posted by INFRNL
could be a broken tooth in the cluster? Either way, I think the only other thing could be the cluster itself, not sure
There's not anymore speed sensors anywhere else i.e. transfercase or maybe tranny or could it be a wheel speed sensor doesn't each wheel have one on it also?
 
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Old Jan 3, 2025 | 09:29 PM
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From: VT
Originally Posted by Colton horn
There's not anymore speed sensors anywhere else i.e. transfercase or maybe tranny or could it be a wheel speed sensor doesn't each wheel have one on it also?
On my truck, the front wheel speed sensors affect the speedometer reading. Is the ABS light on?
 
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Old Jan 14, 2025 | 09:27 AM
  #7  
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Colton horn
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From: College station tx
No Abs light

Originally Posted by materthegreater
On my truck, the front wheel speed sensors affect the speedometer reading. Is the ABS light on?
no abs light..when im on the highway it will eventually go above 40 but it goes all the way to whatever it tops out at on the speedometer then just bounces around after that point it's definitely no accurate by any means
 
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