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Chevrolet Workshop Service and Repair Manuals

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Compression Check > < Drivetrain - 'Service 4WD' Indicator ON/DTC B2725 Set|Page 3839

TrailBlazer 2WD L6-4.2L VIN S (2003)

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2. Install the spark plugs to the engine. Tighten the spark plugs to 18 Nm (13 lb ft).
3. Install the ignition coils. Refer to Ignition Coil Replacement.

Compression Check > < Drivetrain - 'Service 4WD' Indicator ON/DTC B2725 Set|Page 3839