I would have to say a front hub/wheel bearing would more than likely be the culprit you can further narrow it down to left or right by noticing if it gets louder when turning left or right at speed turn vehicle left which puts stress on right bearing if it gets louder bearing is bad same applies for turning right good luck
Yes , a 1994 Mercury Sable is a front wheel drive vehicle
On a 2002 Mercury Sable the radiator is at the front of the engine compartment
On a 2004 Mercury Sable : The battery is in the drivers side of the engine compartment at the front
front of the motor
Mercury Sables are front-wheel drive.
On a 2001 Mercury Sable : The battery is located in the front of the engine compartment , on the drivers side
In a 1998 Mercury Sable : The transaxle is the transmission on your front wheel drive Mercury Sable it is located in the engine compartment , on the drivers side , bolted to the engine
On a Mercury Sable : firewall 1-----2-----3 4-----5-----6 front of vehicle > driver
firewall 1-----2-----3 4-----5-----6 front of Mercury Sable > driver
On a Mercury Sable , V6 : firewall 1-----2-----3 4-----5-----6 front of vehicle > driver
On a 2001 Mercury Sable : No , just front wheel drive according to my Consumer Guide book
On a Mercury Sable V6 engine : firewall 1-----2-----3 4-----5-----6 front of vehicle > driver