The owner manual states, unless the diff has been submerged in water, it never needs to be changed.
Yes.
I believe the lower balljoints can be changed , but the upper control arm assembly with the balljoint has to be changed
Are you talking about the rear differential? Yes, you should. All fluids will have to be changed at certain intervals.
According to the 2001 Mercury Mountaineer maintenance schedule ( every 60,000 miles ) for what Ford states as NORMAL service You can view the 2001 Mercury Mountaineer scheduled maintenance guide ( as well as the owners manual ) online at : www . motorcraft service . com ( no spaces ) Click on Owner Guides
They have a sealed transmission you dont have to fill it. The fluid should be changed around 100,000 and it has to be done by a dealer.
It's fairly simple to find out if your horn fuses need replacing on our 2001 Mercury Mountaineer. If the fuse is blown, the horn will no longer sound.
Check your connection or ground wire. Also check your spark plugs
According to the 1996 Mercury Mystique Scheduled Maintenance Guide : The timing belt for the 2.0 liter four cylinder engine is changed at : ( 60,000 mile intervals )
Transmission fluid is low or viscosity is degrading. Add a bottle of lubricant restorer (cheap) or have the fluid changed. (not so cheap)
Keyless entry codes for most makes and models can be obtained from a dealership with the VIN number and identification. If the code has been changed by a third party then the dealership will not be able to retrieve it.?æ
at 60,000 mile intervals
Never changed one on a Mountaineer but have chnged them on several other vehicles. Follow the upper radiator hose to where it connects to the gooseneck which is held to the engine with two bolts (usually). After draining the radiator and removing the upper radiator hose from the gooseneck, remove the bolts from the gooseneck and the thermostat should be just underneath. The gooseneck is also called the thermostat housing.