Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
2012 Lexus GX 460FACTORY OEM SERVICE PROCEDURE
Throttle Body: Removal: Removal
- REMOVE LOWER FRONT BUMPER COVER . Refer to REMOVAL - Step 6
- REMOVE NO. 1 ENGINE UNDER COVER SUB-ASSEMBLY . Refer to REMOVAL - Step 7
- DRAIN ENGINE COOLANT . Refer to REPLACEMENT - Step 5
- REMOVE V-BANK COVER SUB-ASSEMBLY . Refer to REMOVAL - Step 15
- REMOVE AIR CLEANER CAP AND HOSE . Refer to REMOVAL - Step 23
- REMOVE THROTTLE BODY ASSEMBLY
- Disconnect the No. 4 water by-pass hose and No. 12 water by-pass hose.
- Disconnect the throttle position sensor and control motor connector.
- Remove the 4 bolts, throttle body and gasket.
- Remove the No. 12 water by-pass hose from the throttle body.
- Remove the No. 4 water by-pass hose from the throttle body.
Factory Service Tools
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
Disclosure: Verified tool recommendations may earn an affiliate commission at no cost to you.
When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.