2002 Ford Explorer Tune-Up

MZBROWNLADY7

MEMBER
2002 FORD EXPLORER
4 CYL
2WD
AUTOMATIC
193,000 MILES

I am wanting to perform a tune-up on the vehicle because I have noticed a decrease in power and it has stalled a few times when at a stop. I am not familiar with the location of the spark plugs and wires on this vehicle. Money is low so I thought I would try to do it myself. I need to know what all I need to do to perform this job. What parts are needed. Can you provide me with instructions? A diagrahm would be really great.

1 Reply

JACOBANDNICKOLAS

MECHANIC
108,217 POSTS

There isn't much to do with this. The spark plugs, ignition wires, PCV valve, a fuel filter, and air filter (if needed) is basically all that needs replaced.

The spark plugs are on the side of the heads. There are three on each side (NOTE: You listed a 4 cylender. I believe you ment a 4.0L V6.) Mark the plug wires at both the coil and the cylenders so you get them back to the correct cylender. Remove the wires, remove the spark plugs, replace the plugs with new ones that are properly gapped, replace the ignition wires, and replace the PCV and air filter if needed. As far as the fuel filter, it is on the frame rail. The new one will have an arrow showing fuel flow direction. Just remove the old and replace it. Point the new one in the correct direction.

If you have other questions or concerns, let me know. I'm sorry, but I don't have diagrams. However, here are a couple "How To's" to help.

https://www.2carpros.com/how_to/how_to_change_my_spark_plugs.htm

https://www.2carpros.com/how_to/change_air_filter.htm

https://www.2carpros.com/how_to/how_to_change_fuel_filter.htm

I hope this helps. Let me know.

Joe