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.
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HOMESERVICE MANUALSBUICK2005ALLURE (CANADA) V6-3.8LREPAIR AND DIAGNOSISDIAGRAMSEXPLODED VIEWSENGINETIMING COMPONENTSSYSTEM DIAGRAM
2005 Buick Allure (CANADA) V6-3.8L
System Diagram
2005 Buick Allure (CANADA) V6-3.8LSECTION System Diagram
Timing Components
100 - Engine Block
101 - Cylinder Head Locator Pins
102 - Starter Motor Heat Shield Bolt - Large
103 - Starter Motor Heat Shield Bolt - Small
104 - Starter Motor Heat Shield
105 - Knock Sensor
106 - Engine Block Expansion Plug
107 - Engine Front Cover Locator Pins
107 - Engine Front Cover Locator Pins
108 - Engine Block Coolant Drain Plug
109 - Timing Chain Dampener
110 - Engine Block Oil Gallery Plug - Front
111 - Engine Mount Strut Access Hole Plug
112 - Engine Mount Strut Bracket Stud
113 - Engine Block Oil Gallery Plug - Right
128 - Connecting Rod Bearing Cap Bolt
129 - Connecting Rod Bearing Cap
130 - Connecting Rod Bearing
131 - Connecting Rod
132 - Piston Pin Retainer
133 - Piston Pin
134 - Piston
135 - Piston Oil Control Ring
136 - Piston Compression Ring
137 - Piston Compression Ring
138 - Drive Belt Idler Pulley Bracket Bolt - Lower - Supercharger
139 - Drive Belt Idler Pulley - Lower - Supercharger
140 - Drive Belt Idler Pulley Bolt - Lower - Supercharger
141 - Drive Bolt Idler Pulley Bracket - Lower - Supercharger
230 - Camshaft Bearing - 1 & 4
230 - Camshaft Bearing - 1 & 4
231 - Camshaft Bearing - 2 & 3
232 - Camshaft
233 - Camshaft Key
234 - Camshaft Thrust Plate
235 - Camshaft Thrust Plate Bolt
236 - Balance Shaft Drive Gear
237 - Camshaft Sprocket
238 - Camshaft Position Sensor Magnet
239 - Timing Chain
240 - Camshaft Sprocket Bolt
241 - Crankshaft Sprocket
242 - Balance Shaft Rear Bushing
243 - Balance Shaft
244 - Balance Shaft Gear Pin
245 - Balance Shaft Retainer
246 - Balance Shaft Retainer Bolt
247 - Balance Shaft Driven Gear
248 - Balance Shaft Gear Bolt
405 - Oil Pump Screen Bolt
406 - Oil Pump Screen
407 - Oil Pump Screen Gasket
416 - Oil Level Indicator Tube
417 - Oil Level Indicator
418 - Oil Level Indicator Tube Nut
419 - Oil Level Indicator Tube Seal
547 - Transmission Locator Pin
548 - Crankshaft Rear Oil Seal Housing Gasket
549 - Crankshaft Rear Oil Seal Housing
550 - Crankshaft Rear Oil Seal Housing Bolt
RENDER: 1.0x
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.