Here's a step-by-step guide:
1. Gather Your Supplies:
* Throttle body cleaner: Use a specifically designed throttle body cleaner, *not* brake cleaner or carburetor cleaner. These can damage sensors.
* Clean rags or shop towels: You'll need several.
* Screwdriver (likely Phillips): To remove the air intake hose.
* Small brush (optional): A stiff-bristled brush can help remove stubborn deposits.
* Protective eyewear: Throttle body cleaner can spray.
* Gloves (optional): To protect your hands.
2. Access the Throttle Body:
* Disconnect the negative battery cable.
* Locate the throttle body: It's usually located on the intake manifold, where the air intake hose connects to the engine. It's a large, rectangular housing with a butterfly valve inside.
* Remove the air intake hose: Disconnect the clamps holding the air intake hose to the throttle body. You might need a screwdriver.
* Remove any electrical connectors: There may be sensors or other connectors attached to the throttle body. Carefully disconnect them and set them aside. Take pictures if you're unsure how they connect.
3. Clean the Throttle Body:
* Inspect the throttle body: Note the amount of buildup.
* Spray the throttle body cleaner: Hold the can upright and spray the cleaner onto the throttle plate and the surrounding areas. Let it soak for a few minutes. Don't spray directly into the throttle body bore, but focus on the surfaces around the plate.
* Use a brush (optional): Gently scrub away stubborn deposits using the small brush.
* Wipe clean: Use clean rags to wipe away the cleaner and loosened debris. Pay attention to getting around the throttle plate and ensuring it moves freely.
4. Reassembly:
* Inspect the throttle plate: Make sure it moves freely and smoothly. If it's stiff, gently work it back and forth a few times.
* Reconnect electrical connectors: Carefully reconnect any electrical connectors you removed.
* Reattach the air intake hose: Secure the hose clamps firmly.
* Reconnect the negative battery cable.
5. Start the Engine and Check:
* Start the engine and let it run for a few minutes. Listen for any unusual sounds or rough running. If the engine runs rough, there may be other issues besides a dirty throttle body.
Important Considerations:
* Avoid spraying cleaner directly onto any sensors.
* Don't use excessive force when cleaning or moving the throttle plate.
* If you are uncomfortable performing this task yourself, take your vehicle to a qualified mechanic. This is a relatively simple procedure, but incorrect technique can cause damage.
This procedure is a general guide. Refer to your 1995 Ford Ranger repair manual for specific instructions and diagrams if possible. The location and exact procedure might vary slightly depending on your specific engine. Remember to always prioritize safety and proceed with caution.
