Speedometer doesn’t work 4.6 swapped
- Thread starter Petericaza
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So I do have an older trans in my car so that would explain why the speedo won’t work and the obd reads like 10 mph on the highway?
wmburns
SN Certified Technician
Just wondering. Did you read all the information provided in the T45 tail shaft swap thread?
T-45 Tail Shaft Swap
T-45 Tail Shaft Swap
Please feel free to hit me up with any corrections I have overlooked... This write up is for the T-45 tail shaft swap. I had to change my tail shaft due to the magnetic speed sensor (found in the 99+ models) as appose to the gear driven sensor (96-98 models). Car getting the tail shaft swap...
www.allfordmustangs.com
There is also a possibility that an extended range SpeedCal can change the signal to one that a 1999+ PCM can understand. A normal SpeedCal changes a new style to an older VSS style.
Mustang Speedometer Gear & Correction - LMR.com
Did you just install a new set of gears? Correct your speedometer with the correct speedometer gear.
lmr.com
1994-2004 Mustang Speedometer Gears & Mustang Speed Correction
If your Stang's speedometer is off, repair it with a new 1994-2004 Mustang speedometer gear or Mustang speed correction system.
lmr.com
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Yes I did I was looking for an easier route that didn’t have me changing the tail shaft however that seems like the way I need to go because the speed cals are no longer available. I don’t know where I will find a tail shaftJust wondering. Did you read all the information provided in the T45 tail shaft swap thread?
T-45 Tail Shaft Swap
T-45 Tail Shaft Swap
Please feel free to hit me up with any corrections I have overlooked... This write up is for the T-45 tail shaft swap. I had to change my tail shaft due to the magnetic speed sensor (found in the 99+ models) as appose to the gear driven sensor (96-98 models). Car getting the tail shaft swap...
There is also a possibility that an extended range SpeedCal can change the signal to one that a 1999+ PCM can understand. A normal SpeedCal changes a new style to an older VSS style.
Mustang Speedometer Gear & Correction - LMR.com
Did you just install a new set of gears? Correct your speedometer with the correct speedometer gear.1994-2004 Mustang Speedometer Gears & Mustang Speed Correction
If your Stang's speedometer is off, repair it with a new 1994-2004 Mustang speedometer gear or Mustang speed correction system.
OneSick99GT
Active Member
I had the same issue in my 99 gt manual. The speed sensor for mine was on the driver side underneath the car right where the driver seat would be. The magnetic diode gets weak over time. Usually you notice the speed needle bouncing from max speed to zero or intermittently working before it fails. 5 dollar part and it fixed mine.
wmburns
SN Certified Technician
Try searching car-part.com looking for a manual transmission from a 1999-2001 model year Mustang GT. This will give you an idea of what a whole T45 from a salvage yard unit might cost.
Another option is to get a whole transmission from a 2002+ model year manual transmission Mustang GT which will be a Tremec TR-3650
Yet another option is to reach out to a professional rebuilder. Here's some examples.
Trans Gear Performance, Inc
Ford Mustang T45 5-Speed Transmission | eBay
We have listed a Ford Mustang T45 5-Speed manual transmission. Our warranty is 12 months unlimited miles. The warranty unit will be repaired or replaced if it cannot be repaired.
rover.ebay.com
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I have the totally wrong sensor a vss so the whole tail shaft most likely will need to be changed
Will do that right nowTry searching car-part.com looking for a manual transmission from a 1999-2001 model year Mustang GT. This will give you an idea of what a whole T45 from a salvage yard unit might cost.
Another option is to get a whole transmission from a 2002+ model year manual transmission Mustang GT which will be a Tremec TR-3650
Yet another option is to reach out to a professional rebuilder. Here's some examples.
Trans Gear Performance, Inc
Ford Mustang T45 5-Speed Transmission | eBay
We have listed a Ford Mustang T45 5-Speed manual transmission. Our warranty is 12 months unlimited miles. The warranty unit will be repaired or replaced if it cannot be repaired.rover.ebay.com
Also I can do the tail shaft swap right?Try searching car-part.com looking for a manual transmission from a 1999-2001 model year Mustang GT. This will give you an idea of what a whole T45 from a salvage yard unit might cost.
Another option is to get a whole transmission from a 2002+ model year manual transmission Mustang GT which will be a Tremec TR-3650
Yet another option is to reach out to a professional rebuilder. Here's some examples.
Trans Gear Performance, Inc
Ford Mustang T45 5-Speed Transmission | eBay
We have listed a Ford Mustang T45 5-Speed manual transmission. Our warranty is 12 months unlimited miles. The warranty unit will be repaired or replaced if it cannot be repaired.rover.ebay.com
