How can I tell is my vehicle has an overdrive drum speed sensor?

JASONLANTZ1

MEMBER
1997 FORD EXPLORER
6 CYL
4WD
AUTOMATIC
241,200 MILES

How do you tell if the transmission has an overdrive drum speed sensor in it or not? I am looking to buy a transmission because my transmission is going out and I need to know this before I get one. Any help would be great. Thank you.

Wednesday, January 7th, 2009 AT 8:49 PM

3 Replies

JGAROFALO

MECHANIC
489 POSTS

If the transmission has a large switch with a multi-wire connector on the left side where the shift linkage enters the case, you will also have several other connectors, and an O/D drum speed sensor. If not, it will be the older A4LD transmission, which does not have that sensor.

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Thursday, January 8th, 2009 AT 2:28 PM

KEVIN BRAMLETT

MEMBER
1 POST

So you are saying that if I have a bunch of wires rite where the shift linkage is on the transmission, then I have a overdrive drum sensor? I have searched and searched for this sensor on my truck.

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Wednesday, January 20th, 2021 AT 4:03 AM

ASEMASTER6371

MECHANIC
52,797 POSTS

Good afternoon,

I attached a picture for you of the available transmissions offered for the year of your truck.

https://www.2carpros.com/articles/automatic-transmission-problems

If you have the 5R55, you have that sensor. If you do not have that transmission, then no, you do not have that sensor.

Roy

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