The O/D OFF light in your dash indicates that the OVERDRIVE on your
transaxle ( transmission ) has been switched off ( you don't mention which
year this is , but if the light is flashing that would indicate that a problem has
been detected )
the computer for a 1993 ls mercury sable is by the top of the engine on the pasinger side a black box is on it you only have to unplug it
There is a thermostat on all cars.
On a 2001 Mercury Sable : No , just front wheel drive according to my Consumer Guide book
Yes.
I think the GS is 3.8 liter engine and the LS is 3.0, but don't quote me on that.
On a Mercury Sable , V6 engine : firewall 1-----2-----3 4-----5-----6 front of vehicle > driver
Regular unleaded , 87 octane
I have a 2001 mercury sable LS premium DOHC 24V engine and usually around 70 I'm at 2500-3000 RPM's
Turn the headlight switch on and pull it towards you.
According to the 2000 Mercury Sable Owner Guide : Motorcraft MERCON automatic transmission fluid is used as the power steering fluid
The O/D OFF light in your dash indicates that the OVERDRIVE on your transaxle ( transmission ) has been switched off ( you don't mention which year this is , but if the light is flashing that would indicate that a problem has been detected )
Below and to the left of the steering wheel , by the brake pedal ( it has a cover on it )