View Full Version : Shoud i replace input speed sensor on 2002 deville 140k

01-27-09, 09:52 PM
No sure if thoses sensors are failing on that model year like they used to on 96 to 99 models
i have the engine out for head job right now

any ideas guys


02-01-09, 09:12 PM
According to my tranny guy it's actually pretty common. However, it's in the center of the trans and the tranny pretty much has to be torn down to get to it.

The week my car was getting the trans rebuilt, there was another DTS in there getting the speed sensor changed. Mine is an 01 and his was an 02. His bill was pretty close to mine.

If it isn't broke I wouldn't mess with it.

02-01-09, 10:15 PM
i've had a problem with mine. all i lost was my OD so i'm just trying to get through until spring

02-03-09, 12:02 AM
Thank you for the reply guys

i decided not to replace just for the simple fact that the drive sprocket was replaced at 90K. They would have removed the sensor and re installed it adjusting the clearance.

That sensor has to be a certain distance from the gear.
with time the magnet wears out because of the fluid hitting and the gap gets bigger.
instead of re-adjusting the gap people replace them just to be safe.

i know they call it the $2000 sensor :bonkers: