The VSS is located on the output shaft housing of the transmission on the passenger's side of the vehicle. You can see it by either going down behind the engine to the top of the transmission housing on the passenger's side(an inspection mirror might help). You can also raise the vehicle, pull the right front wheel, and you may be able to see it somewhat at that point.
Have the speed sensor replaced.
why does speedometer come on and off ?
It could be a problem with the speedometer assy, since the two are actually one unit. It could also be a speed sensor which is located in the transmission housing on the the right side output drive axle housing.
it has a speed sensor. its located in the transmission on a 2wd model and in the transfer case of a 4wd model
No, it does not. It's all electronic.
It is located down by the brake pedal....on the left side. its a rectangular shaped black plastic box mounted on the firewall.
Had the same problem off and on in my 1999 Taurus. The speedometer needs to be replaced. The problem is in the speedometer and not the transmission like I was initially led to believe. My mechanic said it wasn't that big of a repair.Coincidentally, the vehicle speed sensor feeds information to both the speedometer and the transmission....See "Related Questions" below for more
Most likely it is the vehicle speed sensor which is located on your tranny!
Yes , one of Ford's websites lists a knock sensor for the 3.4 liter SHO engine in a 1997 Ford Taurus
its located just above the transmission pan usually on the back side of transmission
Is it a 12 valve engine or 24 valve? What do you mean by speedometer sensor? Do you mean Vehicle speed sensor? If so why do you want to change that?
For the DOHC motor look behind the dipstick tube for a single wire sensor.