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.
2005 Buick Allure (CANADA) V6-3.6LFACTORY OEM SERVICE PROCEDURE
Intake Manifold
Intake Manifold
Intake Manifold:
281 - Clean PCV Hose
283 - Dirty PCV Hose
285 - PCV Hose O-ring Outer/Larger
286 - PCV Hose O-ring Inner/Smaller
503 - Upper Intake Manifold
504 - Lower Intake Manifold
509 - Upper Intake Manifold Bolt - Long
510 - Upper Intake Manifold Bolt - Short
519 - Lower Intake Manifold to Upper Intake Manifold Dowel Pin
521 - Upper Intake Manifold Gasket
522 - Lower Intake Manifold Gasket
523 - Lower Intake Manifold Bolt
532 - Fuel Rail Bolt
560 - Fuel Rail
561 - Fuel Injector
562 - Fuel Injector Retainer
563 - Fuel Injector Upper Seal
564 - Fuel Injector Lower Seal
565 - Fuel Pressure Service Valve Cap
566 - Fuel Pressure Service Valve
571 - Fuel Rail Support Bracket
572 - Fuel Rail Support Bracket Bolt
572 - Fuel Rail Support Bracket Bolt
700 - Fuel Injector Wiring Harness
701 - Throttle Body
702 - Throttle Body Bolt
703 - Throttle Body Gasket
716 - Throttle Body Engine Wiring Harness Clip
744 - EVAP Purge Solenoid
746 - EVAP Purge Solenoid Bolt
750 - EVAP Purge Solenoid Tube - Intake Manifold to EVAP Solenoid
751 - EVAP Purge Solenoid Tube - EVAP Solenoid to Chassis
752 - EVAP Purge Solenoid Bracket
753 - EVAP Purge Solenoid Tube Bracket
754 - EVAP Purge Solenoid Tube Bracket Bolt
756 - Intake Manifold Tuning Valve O-ring
757 - Intake Manifold Tuning Valve Bolt
758 - EVAP Purge Solenoid Tube Clip
759 - EVAP Purge Solenoid Tube Clip
765 - Fuel Injector Wiring Harness Bracket
766 - Fuel Injector Wiring Harness Bracket Bolt
776 - BARO Sensor Bolt
777 - BARO Sensor
778 - BARO Sensor O-ring
799 - Intake Manifold Opening Cover
Fuel Rail
Fuel Rail:
532 - Fuel Rail Bolt
560 - Fuel Rail
561 - Fuel Injector
562 - Fuel Injector Retainer
563 - Fuel Injector Upper Seal
564 - Fuel Injector Lower Seal
565 - Fuel Pressure Service Valve Cap
566 - Fuel Pressure Service Valve
571 - Fuel Rail Bracket
572 - Fuel Rail Bracket Bolt
572 - Fuel Rail Bracket Bolt
700 - Fuel Injector Wiring Harness
765 - Fuel Injector Wiring Harness Bracket
766 - Fuel Injector Wiring Harness Bracket Bolt
Factory Service Tools
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
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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.
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