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 MANUALSCHEVROLET2006TRAILBLAZER 4WD V8-5.3L VIN MREPAIR AND DIAGNOSISDIAGRAMSEXPLODED VIEWSENGINELOWER ENGINE ASSEMBLY
2006 Chevrolet TrailBlazer 4WD V8-5.3L VIN M
Lower Engine Assembly
2006 Chevrolet TrailBlazer 4WD V8-5.3L VIN MSECTION Lower Engine Assembly
Disassembled Views
Lower Engine Assembly:
100 - Engine Block
102 - Bolt
103 - Connecting Rod Cap
104 - Connecting Rod Bearings
105 - Connecting Rod
106 - Piston Pin
107 - Piston
108 - Piston Rings
109 - Retainer
120 - Crankshaft Thrust Bearing
120 - Crankshaft Thrust Bearing
121 - Crankshaft Main Bearing
121 - Crankshaft Main Bearing
122 - Crankshaft Sprocket Key
124 - Crankshaft
126 - Crankshaft Bearing Cap
127 - Bolt - M8
128 - Stud - M10
129 - Bolt - M10
400 - Oil Pan
401 - Cover - Right
402 - Bolt
403 - Nut
404 - Nut
405 - Bolt
406 - O-Ring
407 - Oil Pump Screen
425 - Crankshaft Oil Deflector
426 - Oil Pan Gasket
427 - Bolt
428 - Oil Pan Baffle
429 - O-Ring
430 - Oil Pan Drain Plug
431 - Cover - Left
432 - Bolt
434 - Bolt
436 - Oil Filter Bypass Valve
437 - Oil Filter
438 - Oil Filter Fitting
439 - Bolt
445 - Oil Filter Tube Gasket
446 - Bolt
447 - Oil Filter Tube
448 - Oil Filter Tube Gasket
449 - Plug
453 - Bolt
455 - Oil Pressure Relief Valve
RENDER: 1.0x
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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.