Diesel Oxidation Catalyst (DOC) Installation

The DOC must be installed in the correct sequence to ensure proper figment.

1. Install all DOC mounting hardware to the engine and brackets - hand tight only.

2. Torque the DOC bracket to the oil pan - 30 ft–lbs (40 Nm).

3. Torque the DOC to engine block bracket - 18 ft-lbs (25 Nm).

4. Torque the DOC to the oil pan bracket - 18 ft-lbs (25 Nm).

5. Torque the DOC to the exhaust elbow - 18 ft-lbs (25 Nm).

6. Torque the exhaust elbow to the exhaust manifold - 18 ft-lbs (25 Nm).

   DOC Torque Sequence

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