Throttle Body: Remove/Install/Overhaul: Overhaul
- To remove injector from throttle body, remove 2 mounting screws and lift off injector cover.WARNING: To prevent personal injury and damage to injector, do not use more than about 70 psi to remove injector.
- Unplug injector coupler. Slide injector grommet from throttle body. Place shop towel over injector. To remove injector, apply compressed air (less than 70 psi) into fuel inlet port of throttle body. DO NOT soak injector in any type of solvent or cleaner.
- Remove throttle position sensor, fuel pressure regulator and idle speed control solenoid valve from throttle body. See Fig 1 . Remove attaching screws and separate upper and lower bodies.
- DO NOT soak any electrical device or air valve in solvent or other cleaner. DO NOT put drills or wires into passages. Clean upper and lower passages with compressed air only.
- Assemble upper and lower bodies with new gasket. Install and tighten 2 upper-to-lower body attaching screws to 31 INCH lbs. (3.5 N.m). Install fuel pressure regulator with new "O" ring and tighten mounting screws to 31 INCH lbs. (3.5 N.m).
- Install idle speed control solenoid valve with new gasket and tighten mounting screws to 31 INCH lbs. (3.5 N.m).
- Apply thin coat of fuel to new injector "O" rings. Install "O" rings on injector. Insert injector into throttle body. Carefully install wiring harness to injector.
- Apply thread locking compound to mounting screws and install injector cover. Tighten screws to 17 INCH lbs. (2 N.m).
- Install throttle position sensor so its adjusting holes slightly cover mounting bolt holes. See Fig 2 . Turn sensor so mounting holes align. Install sensor mounting bolts and finger tighten only. Clamp wiring harness securely to side of throttle body.