Cleaning throttle body
02 Ranger 4.0 sohc throttle body
Hello warriors. My 02 Ranger has been idling rough and after firing the parts cannon, and finding a leak with a smoke test on the left side, I took the TB apart and lo and behold there are two small O rings on the shaft. I got a diameter of 12 mm on the shaft, so I ordered 13mm OD, 10mm ID 1.5mm thick O rings and see if I can fix the leak. Couldn't find bushings, but someone mentioned those are melted in. A guy in China was selling a rebuild TB on eBay for $104, but I wanted to try this first. The side of the shaft where the cable is, gets way more force on it, so makes sense it would start leaking there. Idle is rough, and I have no other vacuum leaks. 147,000
Last edited by SavageFord17; Feb 16, 2025 at 05:39 PM.
" Idle is rough, and I have no other vacuum leaks. 147,000"
So what are you going to check next? How's the overall condition of the truck?
Plugs and wires?
A dose of Techron before a stint of local driving?
So what are you going to check next? How's the overall condition of the truck?
Plugs and wires?
A dose of Techron before a stint of local driving?
Update: diameter of butterfly shaft is not 12mm. Have to re measure. Got the wrong O rings
Last edited by SavageFord17; Feb 17, 2025 at 01:59 PM.
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