I cleaned my throttle body today and figured I would snap a few pics to do a write-up for the site since there isn't one on this subject yet. My Jeep was running sluggishly and had a rough idle to the point that I thought the Jeep was going to shut off. So here it goes...
8mm Socket or Flathead Screwdriver
E10 (Reverse TORX) Socket
Throttle Body Cleaner (Spray types are easier to use)
1. Using a 10mm socket disconnect the negative battery terminal first and then disconnect the positive battery terminal.
2. Slide the red clip on the plug at the intake air temp sensor and unclip the plug from the sensor.
3. Use an 8mm socket or a flathead screwdriver to loosen the clamp that secures the intake tube to the throttle body and pull the intake tube away from the throttle body assembly.
4. Unclip the throttle body harness from the lower portion of the throttle body.
5. Remove the 4 TORX head bolts on the throttle body using the E10 Reverse TORX socket and seperate the throttle body from the engine. As you can see from the picture below, the front side of the butterfly has some residue on it.
I would recommend not removing the o-ring that seperates the throttle body from the intake manifold as some people have stretched the o-ring when removing it which causes it to seat improperly when reinstalling the throttle body. FYI, the o-ring is $24 at your local dealer!
This image shows what your dirty throttle body probably looks like.
6. Using your throttle body cleaner of choice and shop towels clean the butterfly and surrounding area. I used CRC Throttle Body Cleaner since I had a can in the shed but many people swear by Seafoam.
7. Reinstall all of the parts in reverse order of how you removed them. Torque the throttle body bolts to 65 in/lbs or 5.5 ft/lbs. Start the Jeep to verify that everything is back in working order and you are finished!