To fix the rear wiper on a Mercury Mountaineer, first check the wiper blade for wear or damage and replace it if necessary. Next, inspect the wiper motor and fuse; replace the fuse if it's blown and test the motor for functionality. If the motor is not working, it may need to be replaced. Additionally, ensure the wiper arm is properly attached and not loose.
I have mercury mountaineer 4x4 03 had grinding noise easy fix remove the shaft which connects the transmission to the rear end
replace it.
Sure
you need to change your thermostat
Try replacing the upstream O2 sensor
spray your door latches with wd40.
Check the fuses under the hood on the driver's side.
Its the blend door. It happened on my 98 Mercury Mountaineer. The motor shaft and the door have separated there is an easy fix look up blend door fix for 98 Mercury Mountaineer it just needs a small finishing nail and done
The wiper motor is a non repairable part, just replace it.
The first thing to do is check your fuses. It may be a very simple fix.
I have a 1998 Mountaineer and had the same problem. There was dust in the electrical connections. All the dealer did was blow it out and charge me an outragous service fee
The rear wiper sometimes stop in cycle. Try turning on the switch and then gently move the arm slowing to trigger the motor.