why does my Cadillac Escalade T1XX (2021-Present) have a coolant leak

Symptoms

• Visible coolant puddles under the vehicle
• Sweet smell of coolant inside or near the engine bay
• Fluctuating engine temperature gauge
• Check engine light illuminated
• Low coolant warning light on the dashboard
• Steam rising from the engine compartment

Diagnostic Steps

1. Inspect the coolant reservoir for cracks or leaks.
2. Check all hoses connected to the radiator and engine for signs of wear or damage.
3. Examine the radiator for leaks or corrosion.
4. Inspect the water pump for signs of coolant seepage.
5. Use a pressure tester to identify leaks in the cooling system.
6. Check the engine block and cylinder head for signs of coolant leaks (e.g., head gasket failure).

Solution

1. Preparation

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

2. Inspect and Replace Hoses

• Sub-steps:
  • Remove any covers obstructing access to the hoses.
  • Disconnect the coolant hoses from the radiator and engine.
  • Inspect hoses for cracks, bulges, or leaks.
  • Replace damaged hoses with new OEM parts.
  • Reconnect hoses securely and ensure clamps are tight.
• Tools Required: Hose clamp pliers, screwdriver.

3. Check and Replace the Water Pump

• Sub-steps:
  • Drain the coolant from the system.
  • Remove any components obstructing access to the water pump (e.g., belts, pulleys).
  • Disconnect the water pump from the engine and remove it.
  • Clean the mounting surface on the engine.
  • Install the new water pump with a new gasket or sealant.
  • Reinstall the components removed earlier.
• Tools Required: Socket set, torque wrench, coolant catch pan.
• Safety Warnings: Allow engine to cool before draining coolant.

4. Repair or Replace the Radiator

• Sub-steps:
  • Drain the coolant from the radiator.
  • Disconnect the radiator from the vehicle (remove mounting bolts and hoses).
  • Inspect for signs of damage or leaks.
  • Replace with a new radiator if damaged; otherwise, repair any minor leaks as necessary.
  • Reinstall the radiator, reconnect hoses, and fill with coolant.
• Tools Required: Socket set, pliers, coolant catch pan.