Centinel System – Repair Manual – 011-030   EGR Valve Coolant Lines

WARNING  Do not remove the pressure cap from a hot engine. Wait until the coolant temperature is below 50°C [120°F] before removing the pressure cap. Heated coolant spray or steam can cause personal injury.

WARNING  Coolant is toxic. Keep away from children and pets. If not reused, dispose of in accordance with local environmental regulations.

• Drain the cooling system. Refer to Procedure 008-018.
• Remove the air intake piping. Refer to the OEM service manual.
• Remove the heat shield. Refer to Procedure 011-032.

Disconnect the EGR valve coolant supply (bottom) and return (top) lines.

WARNING  When using solvents, acids, or alkaline materials for cleaning, follow the manufacturer’s recommendations for use. Wear goggles and protective clothing to reduce the possibility of personal injury.

WARNING  Wear appropriate eye and face protection when using compressed air. Flying debris and dirt can cause personal injury.

Clean the EGR valve coolant lines with solvent.

Dry with compressed air.

Inspect the EGR valve coolant lines and rubber grommets for cracks or damage.

Replace the lines, if cracks or damage is found.

Connect the EGR valve coolant lines making sure the sealing washers are in place on the banjo connector.

Tighten the EGR valve coolant line nut and capscrew.

• Install the heat shield. Refer to Procedure 011-032.
• Install the air intake piping. Refer to the OEM service manual.
• Fill the engine cooling system. Refer to Procedure 008-018.
• Start and operate the engine. Check for leaks.