This is not a job for a novice as much can be harmed when working with the printed circuit etc. Take it to a garage.
It is easier and cheaper to replace the entire axle. About $80.
The most common reason for all of your dashboard cluster lights to go out is a blown fuse. Change the dashboard cluster light fuse.
Remove the dash cluster to gain access to the back of the cluster to change the bulbs.
If both the speedometer and the odometer work on and off, I would blame the vehicle speed sensor. If only the speedometer is acting up, I would blame the cluster.
If none of them are working, then it will probably be a fuse as you probably won't have any running lights either. If not then, you need to go to a car parts store, and get a repair manual for your car. They cost about $16.00 Or, go to a Public Library.
You must remove the instrument cluster to do so.
How do you change the thermostat in 1999 Mercury Villager
when should i change the timing belt on a mercury villager
To change the thermostat on a 2002 Mercury villager, pull the hose away. If the bolts do not come off, wiggle the fitting to expose the thermostat to be able to change it.
If it is a 3.0 then the answer is yes. Change it at 105,000 miles.
I assume it is the same as the ( 1996 ) Mercury Villager : With engine oil filter change : ( 4.2 US. quarts of 5W-30 engine oil )
You will have to remove the instrument cluster. This may be an LED that should never have failed.
No, you do not have to remove the engine.
There is no way to change gear ratios.
1999 - 2002.
Recommended interval is 105,000 miles..
According to the 1999 Mercury Villager scheduled maintenance guide : ( 105,000 miles ) It doesn't hurt to do it sooner since the engine is an interference engine