I just replaced mine last night. Its located in the front right between the grill and the radiator( probably directly inside the hood from where you license plate would go) . we needed a special socket to reach in and remove it . The space is limited when trying to reach down with your hand. This is an edit to the answer above: There are TWO O2 sensors on the car. One (the front one) is located as mentioned above. The rear O2 sensor is located underneath the front passenger side of the car (you will have to jack the car up to replace it).
It's right after the airfilter box
right behind the air filter toward the engine
were is the iac locate on a 1999 mercury mystique
the library should have a shop manual for this vehicle, you can make copies of the right sections :)
on the back of the block behind the intake
check fuses & brake lights switch located on brake pedal
The fuel pump fuse for a 1998 Mercury Mystique is located in the main fuse panel near the hood release. It prevents the fuel circuit from being overloading and damaging the pump.
According to the 1998 Mercury Mystique Owner Guide : ( 61.5 litres / 16.2 U.S. gallons )
A speed sensor on a 1998 Mercury Tracer is located on the transmission housing of the vehicle. It is placed on top in a secure location to safely measure the speed the transaxle spins.
yes
No , coil pack
You can view the 1998 Mercury Mystique owners manual online at : www . motorcraft service . com ( no spaces ) Click on Owner Guides ( The fuse section starts on page 109 ) The owners manual shows the location and diagram