my Cadillac Escalade T1XX (2021-Present) has a coolant leak where should I look

Symptoms

• Coolant puddles under the vehicle
• Low coolant level in the reservoir
• Engine overheating warning light illuminated
• Sweet smell of coolant inside or outside the vehicle
• Steam rising from the engine bay
• Poor engine performance due to overheating

Diagnostic Steps

1. Inspect the coolant reservoir for cracks or leaks.
2. Check all hoses connected to the cooling system for signs of wear or damage.
3. Examine the radiator for leaks or corrosion.
4. Inspect the water pump for leaks around the gasket.
5. Look for any signs of coolant on the engine block or near the head gasket.
6. Use a pressure tester to pressurize the cooling system and identify leaks.

Solution

1. Preparation

• Gather tools and parts needed for the repair.
• Ensure the engine is cool before starting work.
• Disconnect the negative battery terminal to avoid electrical issues.

2. Inspect and Replace Hoses

• Sub-steps:
  1. Identify and inspect all hoses connected to the cooling system.
  2. If a hose is found leaking, loosen the hose clamps using a screwdriver.
  3. Remove the damaged hose and replace it with a new one.
  4. Reattach the hose using the clamps, ensuring a tight fit.
• Tools Required: Screwdriver set, hose clamp pliers.
• Safety Warnings: Always wear gloves and eye protection.

3. Repair or Replace the Radiator

• Sub-steps:
  1. Remove any obstructions to access the radiator.
  2. Inspect the radiator for cracks or leaks.
  3. If damaged, drain the coolant using a catch pan.
  4. Disconnect the upper and lower radiator hoses.
  5. Remove the radiator mounting bolts and lift it out.
  6. Install the new radiator in reverse order and refill coolant.
• Tools Required: Socket set, catch pan.
• Safety Warnings: Ensure the coolant is disposed of properly.

4. Replace Water Pump

• Sub-steps:
  1. Drain the coolant from the system.
  2. Remove the drive belt by loosening the tensioner.
  3. Disconnect the water pump hoses and bolts.
  4. Clean the mounting surface and install the new water pump.
  5. Reattach hoses and drive belt, then refill coolant.
• Tools Required: Socket set, belt tensioner tool.
• Safety Warnings: Follow proper disposal methods for old coolant.