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How-to » Engine » Mechanical, Lubrication & Cooling » How to Pressure Test a Radiator and Cap
 Note: This is a general guide for all vehicles.

How to Pressure Test a Radiator and Cap

PARTS
  • Mirror
TOOLS
  • Flashlight
  • Cooling System Pressure Tester
STEPS
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Safety Tip:
Always wear safety glasses when working on your vehicle. Wear other personal protective equipment (PPE) when necessary, for example latex gloves or closed toe shoes.

1
Open the hood and locate the vehicle's radiator.
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2
Inspect the radiator.
3
Install cooling system pressure tester following tool instructions.
4
Inspect the radiator for leaks.
5
If the radiator is cracked or leaking, it may need to be replaced.
6
If the radiator cap does not hold pressure, it will need to be replaced.
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