### Throttle Body Cleaning on a Subaru Legacy – **Preparation and Safety** – **Gather Tools and Materials:** – Throttle body cleaner (preferably a non-chlorinated type) – Clean lint-free rags or paper towels – Screwdrivers (flathead and Phillips) – Ratchet set and socket sizes (commonly 10mm) – Pliers – Safety goggles and gloves – **Work Area:** – Ensure you are working in a well-ventilated area to avoid inhaling fumes from the cleaner. click here for more details on the download manual…..
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### Throttle Body cleaning on a Subaru Legacy
– **Preparation and Safety**
– **Gather tools and Materials:**
– Throttle body cleaner (preferably a non-chlorinated type)
– Clean lint-free rags or paper towels
– Screwdrivers (flathead and Phillips)
– Ratchet set and socket sizes (commonly 10mm)
– Pliers
– Safety goggles and gloves
– **Work Area:**
– Ensure you are working in a well-ventilated area to avoid inhaling fumes from the cleaner.
– Disconnect the battery by removing the negative terminal to avoid any electrical issues.
– **Accessing the Throttle Body**
– **Locate the Throttle Body:**
– Open the hood and locate the throttle body, which is typically found between the air intake manifold and the intake duct, connected to the engine.
– **Remove the Air Intake Duct:**
– Using a flathead screwdriver, loosen the clamps securing the air intake duct to the throttle body.
– Carefully detach the duct to expose the throttle body.
– **Disconnecting Components**
– **Disconnect Electrical Connections:**
– Unplug the throttle position sensor (TPS) connector and any other electrical connections attached to the throttle body.
– Ensure to handle connectors gently to prevent damage.
– **Remove the Throttle Body:**
– Use the appropriate socket size to remove the bolts securing the throttle body to the intake manifold.
– Gently pull the throttle body away from the manifold, being cautious of any gaskets that may stay attached.
– **Cleaning the Throttle Body**
– **Inspect the Throttle Body:**
– Check for excessive carbon buildup on the throttle plate and inside the housing. Identify any areas that require more attention.
– **Apply Throttle Body Cleaner:**
– spray the throttle body cleaner onto a lint-free rag or directly onto the throttle plate and surrounding areas.
– Use the rag to wipe away carbon deposits and grime, focusing on the throttle plate edges and inside the intake manifold.
– **Open the Throttle Plate:**
– For a thorough clean, gently open the throttle plate by manually moving it with your finger or using a screwdriver to press the throttle mechanism while cleaning.
– Ensure all surfaces, especially around the plate’s edges, are clean and free from debris.
– **Reassembly**
– **Reinstall the Throttle Body:**
– Position the throttle body back onto the intake manifold, ensuring alignment with the gasket.
– Tighten the bolts securely but do not over-torque to avoid damaging the manifold.
– **Reconnect Electrical Connectors:**
– Reattach the throttle position sensor and any other electrical connections that were disconnected.
– **Reattach the Air Intake Duct:**
– Secure the air intake duct back in place and tighten the clamps to ensure a proper seal.
– **Final Checks**
– **Reconnect the Battery:**
– Reattach the negative battery terminal and ensure it is tight.
– **Start the Engine:**
– Start the engine and let it idle for a few minutes. Check for any unusual sounds or warning lights.
– **Test Drive:**
– Take the vehicle for a short test drive to ensure proper throttle response
and engine performance.
– **Clean-Up**
– **Dispose of Used Materials:**
– Dispose of any used rags or cleaning materials properly, following local regulations for hazardous waste.
– **Store Tools:**
– Organize and store all tools and leftover cleaning products for future use.
### Additional Notes
– **Frequency of Cleaning:** It is generally recommended to clean the throttle body every 30,000 to 50,000 miles, or as needed based on performance issues.
– **Warning:** Be cautious with throttle body cleaner; do not spray it directly on electronic components or sensors. Always follow manufacturer guidelines for cleaning.
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