how to troubleshoot Ram 1500 DT (2019-Present) coolant leak

Solution

1. Preparation

• Gather necessary tools and parts.
• Ensure the engine is cool before starting work.
• Disconnect the battery to prevent electrical issues.

2. Visual Inspection and Identification

• Tools Required: Flashlight, inspection mirror
• Carefully inspect the coolant reservoir, hoses, radiator, and water pump for visible leaks.
• Look for any signs of coolant staining on the engine or components.

3. Pressure Testing

• Tools Required: Cooling system pressure tester
• Attach the pressure tester to the coolant reservoir.
• Pump the tester to the manufacturer’s specified pressure (usually around 15-20 psi).
• Observe for any drops in pressure, which indicates a leak.

4. Repair or Replace Leaking Components

• If the coolant reservoir is damaged, replace it with a new one.
• For leaking hoses, replace them with new hoses, ensuring proper clamps are used.
• If the radiator is leaking, remove it and install a new radiator.
• For water pump leaks, drain coolant, remove the water pump, and install a new one with a new gasket.
• If the intake manifold gasket is leaking, remove the intake manifold and replace the gasket, ensuring proper torque specifications during reassembly.

5. Refill and Bleed the Cooling System

• Refill the cooling system with the manufacturer's specified coolant mixture.
• Tools Required: Funnel, coolant
• Start the engine and allow it to reach operating temperature while checking for leaks.
• Bleed the cooling system of any trapped air by opening the bleed valve or running the heater on high.