my Acura MDX YF3 (2022-Present) has a coolant leak how to find it

Symptoms

• Dashboard warning light for low coolant.
• Visible coolant pooling under the vehicle.
• Sweet smell of coolant inside or outside the vehicle.
• Overheating engine or temperature gauge reading higher than normal.
• Low coolant level in the reservoir.

Diagnostic Steps

1. Visual Inspection:

   • Check the ground underneath the vehicle for any signs of coolant leakage.
   • Look for wet spots on the engine components, hoses, and undercarriage.

2. Check Coolant Level:

   • Open the hood and inspect the coolant reservoir; ensure that the coolant level is above the minimum mark.
   • If low, top off with the appropriate coolant type (check owner’s manual for specifications).

3. Pressure Test:

   • Use a coolant pressure tester to pressurize the cooling system. This will help identify any leaks that may not be visible.
   • If coolant leaks out, identify the source (hoses, radiator, water pump, etc.).

4. Inspect Components:

   • Hoses: Check all radiator and heater hoses for cracks, bulges, or loose connections.
   • Radiator: Inspect the radiator for damage or corrosion.
   • Water Pump: Look for signs of coolant seeping from the water pump weep hole.
   • Thermostat Housing: Ensure the thermostat is fitted correctly and not leaking.

5. Scan for Error Codes:

   • Use an OBD-II scanner to check for any related error codes that might indicate cooling system issues.

Repair Instructions

1. Tools Required:

   • Coolant pressure tester
   • OBD-II scanner
   • Socket set
   • Torque wrench
   • Screwdrivers
   • Hose clamp pliers
   • Replacement parts (hoses, radiator, water pump, etc. as needed)
   • Coolant

2. Repair Steps:

   • If a hose is leaking:
     • Loosen the hose clamps using a screwdriver or pliers.
     • Remove the hose and replace it with a new one.
     • Reattach and tighten the hose clamps to specified torque.
   • If the radiator is leaking:
     • Drain coolant using the drain plug.
     • Remove the radiator by disconnecting hoses, electrical connectors, and mounting bolts.
     • Install the new radiator by reversing the removal steps.
   • If the water pump is leaking:
     • Drain the coolant.
     • Remove the drive belt and detach the water pump from the engine.
     • Install the new water pump with a new gasket and torque to specifications.
   • Refill the cooling system with the appropriate coolant and check for leaks.

Safety Warnings

• Always allow the engine to cool down before opening the coolant reservoir or performing repairs.
• Wear gloves and safety goggles when handling coolant, as it is toxic and can be harmful to pets and the environment.
• Ensure the vehicle is on a flat surface and securely supported when working underneath.