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How to Replace Transmission Speed Sensor 1994-2000 Ford F-150
How to Replace Transmission Output Speed Sensor 1997-2003 Ford F-150
Created on:
Tools used
Socket Extensions
Flat Blade Screwdriver
8mm Socket
Ratchet
Needle nose pliers
1. Removing the Transmission Output Speed Sensor
Disconnect the speed sensor wiring harness
Remove the 8mm bolt from the speed sensor
Turn the sensor to break it free
If needed, pry out the sensor with pliers or a flat blade screwdriver
2. Installing the Transmission Output Speed Sensor
Insert the sensor into the transmission
Tighten the 8mm bolt to the sensor
Connect the wiring harness
Hi, I'm Mike from 1A Auto. We've been selling auto parts for over 30 years. We're dedicated to delivering quality auto parts, expert customer service, fast and free shipping, all backed by our 100% satisfaction guarantee. Visit us at 1AAuto.com, your trusted source for quality auto parts.
Right here on the driver's side on the side of the transmission is your output speed sensor, and it has a connector on it which has a tab on the top and the bottom, which you're going to want to disconnect first. This one the tab is actually broken off at the top, so it looks like somebody has been here before or it, or it's just a little brittle. But on the bottom, you just want to pry the tab down just slightly, and it'll slide right off.
On the sensor itself, there's an eight millimeter bolt in the bottom of it which you can access with an eight millimeter socket. Usa a 6” extension and a 3/8” ratchet to remove it. Once you get it loose, it will spin right out by hand. At this point, you might be able to turn the sensor so that it breaks free from its grip. This one's a little stuck.
Now you can see that we're using some pliers and possibly a screwdriver. Usually one of these will work. If not, you can use a small pry bar and pry against the transmission, or just kind of turn it 90 degrees and hopefully pop it’ll out. All right, so now we have the new sensor, and we're just going to slide it right in the hole. It's going to take a little bit of force to get it in. You can try turning it. All right, now we'll take our bolt and thread it in by hand. You always want to start it by hand so you don't accidentally cross thread it into the hole. Now you can take your eight millimeter socket, your extension, and ratchet and tighten it up. You don't have to get too crazy with it. Just kind of tighten it with your wrist. As soon as you start moving your elbow, you're probably putting too much force on it. Now we can snap the connector back on just like that. The job is done.
Thanks for watching. Visit us at 1AAuto.com for quality auto parts, fast and free shipping, and the best customer service in the industry.
Tools used
Pry Bar
8mm Socket
Ratchet
VSA92946
In Stock
Product Reviews
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Good replacement part
Bruce
July 30, 2022
Quick delivery. Never needed to install part as it seems some critter chewed the wires off at the connector. Ended up only needing to replace pigtail (apparently a common problem whe u live in the country).
good part
Kevin
December 23, 2022
worked great
Mike
May 31, 2023
I bought 3 different ones . one made the Speedo quit working. the other one was too small in diameter to fit in the hole.
Johnathan
April 29, 2024
perfect fit
Vehicle Speed Sensor
Charlene
May 21, 2024
This Vehicle Speed Sensor is just what I needed.
Customer Q&A
Okay can you send me a photo of where the speed sensors located on the transmission of a 1997 Lincoln Town Car Executive it would be greatly appreciated?August 18, 2019
Thomas H
10
Thank you for your inquiry, but unfortunately we do not have any diagrams available that show where this part mounts exactly.
August 19, 2019
T I
which side drivers or pass side sensor on?November 5, 2020
Flamond G
10
It was on the drivers side of the transmission for my 1995 Ford F-150.
November 5, 2020
Brooks R
10
Mine was located on rear end on top left hand side or drivers side of axle
November 5, 2020
R J
10
Written and video installation instructions are found on the product page under the "How-To & Tools" tab.
We're constantly adding new installation video instructions. If we do not have one for your vehicle on the product listing page, please check again at a later time or check our Video Library to see similar repairs here: https://www.1aauto.com/videos
November 5, 2020
Ricale A
10
The shown VSS is located on the drivers side at about the middle of the case. It is posible to also have the earlier style VSS on the drivers side of the tail housing.
November 6, 2020
RAY D
After I drive my '97 Expedition (5.4) 30-45 mins., the O/D light at the end of the shifter starts blinking and it shifts hard. Is this a faulty speed sensor?December 22, 2022
Russ L
10
There could be multiple reasons why you're having this particular problem. We suggest taking your vehicle to a nearby reputable shop to identify the cause. Once you know the cause, we'll be happy to see if we carry the parts and how-to videos needed for your repair.
December 23, 2022
Andra M
10
It can be. It can also be a ABS problem, or brakes. It can also be a differential problem. There may be metal particles in your differential. Check for leaking brakes, metal in the differential. Change the differential fluid. Check the ABS error codes.
December 24, 2022
Kevin R
Does this part fit "late 1999 Ford F-250" with 4R100 ? The bracket looks wrong " looks like this is the vss sensors for rear differential" also this part is only listed up too 1999 and that's not correct. A 2000 output shaft sensor fits perfectlyJanuary 22, 2023
Raymond T
10
This part is listed to be the correct Output Speed Sensor for all 1999 Ford F250 Trucks with an Automatic Transmission.
January 24, 2023
Jessica D
Hello, I have a Ford F150, 6 speed. mod. 2013 4x4, series 1FTW1EF8DKF45515 and it is failing, the scanner says it isthe speed sensor, do they have those spare parts and where are they placed, I understand that there are 2 sensors?September 11, 2023
Jorge P
10
There are multiple speed sensors in the vehicle. We would not have exact locations on your application. We would suggest getting the vehicle properly diagnosed to confirm which specific sensor is needed to be replaced prior to placing an order.
September 13, 2023
Jessica D
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