I had mine done a couple years ago. If I can remember right, it was about $250.
In the back of the engine.
My auto lamp light sensor is not working on my Mercury Sable 2002. Why?
location of engine cooling fan sensor
on the dash
On the transmission.
you do have an ( 02 ) sensor on the exhaust system
P0340 means Camshaft Position Sensor Your cam position sensor or the wiring leading to it has gone bad. It will cause occasional rough running and hard starting until it is replaced. If you live in a county that does emissions testing, your car WILL FAIL unless it is fixed.
2005 sable fuel filter?
The critical piece of information is missing from the original question: which sensor of the dozens of sensors in the typical Taurus / Sable
lower right front of the engine
You can find the wiring diagram for a relay position for a 1997 Mercury Sable in the owner's manual. You can also check local auto stores.
No, it's a switch that has to be replaced (common part on a lot of cars). Some cars have more than one so you must specify which sensor you need at the parts supply place.