Engine Cooling System—13.5 L Engine

Turn engine OFF.

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Clean grille screen (A) using a brush or compressed air.

Clean trash from engine compartment shields.

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Use caution when oil-fuel cooler is opened. Steel cooler line may contact air conditioner line when cooler is at a 30° angle. Steel line fitting (C) does not rotate and can cause damage to the line fitting if extended too far.

Release hood latch and raise hood.

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Release air conditioning condenser retaining clips (A) to swing condenser forward for better cleaning access.

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Use compressed air to clean air conditioning condenser (B) using compressed air.

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Release oil-fuel cooler retaining clips (A) to swing cooler (D) forward.

Use compressed air to clean radiator. Straighten any bent radiator fins.

Close air conditioning condenser and oil-fuel cooler and lock the retaining clips.

Gently lower hood and firmly close until hood latch is locked.

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