I have never come across a 1999 Explorer that had a cabin air filter. I am looking at the Ford online service manual right now, and I don't see a listing for it, nor do I see a picture of it anywhere in the diagram. All indications are that vehicle never came equipped with one.
My 1999 Ford Explorer Does in deed have a cabin filter, it is located behind the glove compartment.
An 08 F150 Harley Edition does have a cabin air filter located on it. Furthermore, the F180 Harley Edition has a fuel filter located in the engine compartment.
Front of engine on the drivers side. under the engine block if it is a factory installed oil filter it is a white out of place object.
NoNo
On a 1995 Ford Explorer : The fuel filter is underneath the vehicle , below the drivers door , mounted on the frame rail
Above the skid plate, facing diagonally upwards
It is a 19mm nut located on the lower back side of the oil pan. The oil filter is in the front.
I believe that one is under the car near the gas tank.
I don't think there is one. I just looked in the glovebox manual for my 2003 Limited and could find no mention of one
The only easy way is to use a high performance air filter like a K&N.
It is above and on the inboard side of the fuel tank.
I also can't mine either. I think it's in the gas tank. I followed the gas line from the gas tank to the motor and not filter.
I would recommend that you keep the hood of your jeep firmly closed at all times and drive to the nearest oil change store where they have people who are trained to locate and change your oil filter. If asked politely they will also show you what it looks like, what it does and where it is located. Future questions concerning your specific jeep should include a sentence such as: Where is the oil filter located for a 2001 Jeep Grand Cherokee Limited with (your engine) sized engine. This would give someone enough information to actually give you a good answer.