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.
Installation (GS400)
Temporarily install fuel pressure pulsation damper(s), NEW pulsation damper gaskets and fuel line. Remove bolts and air tube. Disconnect engine wiring harness clamp from bracket. Disconnect No. 5 ignition coil connector and No. 7 injector connector. Using a torque wrench and Steering Rack Wrench (09617-24011), tighten fuel pressure pulsation dampers to specification. See TORQUE SPECIFICATIONS . To complete installation, reverse removal procedure. Check for fuel leaks.
NO RELATED
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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.