Where is the transmission Input Speed Sensor located?

2003 FORD E-SERIES VAN
149,000 MILES • 6.8L • V10 • 2WD • AUTOMATIC
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DAMIANXYOUNG
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  • 2 POSTS
Hi all, thanks for taking a look at this issue, ultimately, I'm in need of a photo or diagram showing where this particular sensor is located.

The issue is cruise control stopped working, couple thousand miles later, I noticed the speedometer not moving and stuck at 0 while the van was driving about 30 mph then started working again but seems to have a delay. Accelerating from 0 takes about 3 seconds before the speedometer needle begins to move.

I have already changed the Speed Sensor that is in the rear differential, still no cruise and same lagging speedometer issue.

Thanks a ton for any advice!!!
Sep 15, 2023 at 7:14 PM
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DAMIANXYOUNG
  • MEMBER
  • 2 POSTS
4R100 Transmission I believe, It is the 6.8 L V10.
Sep 16, 2023 at 8:21 AM
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JACOBANDNICKOLAS
  • CERTIFIED EXPERT
  • 110,175 POSTS
Hi,

If this is the 4R100, the turbine shaft sensor (TSS) is toward the top of the transmission housing you may have to lower the transmission a bit to gain access. The output speed sensor (OSS) is at the rear of the transmission.

I attached two pics below. Take a look and let me know if they help. Note: The TSS is basically the input speed sensor.

Take care,

Joe

See pics below.
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Sep 17, 2023 at 2:15 PM
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