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 MANUALSCHEVROLET2009TRAILBLAZER 4WD L6-4.2LPARTS AND LABORENGINE, COOLING AND EXHAUSTENGINELABOR TIMES
2009 Chevrolet TrailBlazer 4WD L6-4.2L
Engine: Labor Times
2009 Chevrolet TrailBlazer 4WD L6-4.2LSECTION Labor Times
| Standard Hours | Manufacturer Warranty Hours | Skill Level | Notes | |
| Diagnose/Test | ||||
| Oil Leak, Diagnosis | 1.0 | 0.5 | B | |
| Replace | ||||
| Complete Assembly Without Transfer Of Parts | 18.8 | 12.6 | B | Does Not Include: Transfer Of Any Part Of Engine Or Replacement Of Optional Equipment. |
| NOTE | ||||
| With Tank Shield, Add | 0.5 | 0.4 | B | |
| With Full Time 4WD, Add | 0.2 | 0.1 | B | |
| Complete Assembly With Transfer Of Parts | 21.3 | 14.1 | B | Includes: Transfer Of Fuel & Electrical Components. Does Not Include: Transfer Of Optional Equipment. |
| NOTE | ||||
| With Tank Shield, Add | 0.5 | 0.4 | B | |
| With Full Time 4WD, Add | 0.2 | 0.1 | B | |
| Long Block | 25.3 | 0.0 | B | Includes: R&I Engine And Transfer All Necessary Components. |
| NOTE | ||||
| With Tank Shield, Add | 0.5 | 0.0 | B | |
| With Full Time 4WD, Add | 0.2 | 0.0 | B | |
| Short Block | 28.3 | 0.0 | A | Includes: R&I Engine And Transfer All Necessary Components. |
| NOTE | ||||
| With Tank Shield, Add | 0.5 | 0.0 | A | |
| With Full Time 4WD, Add | 0.2 | 0.0 | A | |
| To Grind Valves, Add | 1.6 | 0.0 | A | |
| Overhaul/Rebuild | 38.3 | 0.0 | A | Includes: Disassemble & Clean Engine. Ridge Ream & Hone Cylinders, R&I Engine, Inspect All Necessary Components, Grind Valves And Tune-Up. |
| NOTE | ||||
| With Tank Shield, Add | 0.5 | 0.0 | A | |
| With Full Time 4WD, Add | 0.2 | 0.0 | A |
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.