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Figure 1-45.-Radiator pressure cap. -

Mityvac MV4560 Radiator/Cooling System and Pressure Test Kit

$60.00


Radiator Pressure Tester - Sears

Pump the cylinder handle of the radiator pressure tester while watching the psi gauge. Do not exceed the psi pressure listed on the radiator cap. Internal seals or weak hoses can burst if too much pressure is applied. Once the desired pressure is obtained, gently rest the pressure tester on the frame rail or radiator rail. Visually inspect all around the radiator and around the bottom of the engine area under the vehicle for any visible signs of dripping or leaking. This tester under pressure will reveal any small leaks and help you identify the failed component. Heater cores, part of the cooling system, are internal between the firewall and floorboard on the passenger side of the car. You won't be able to see the hoses or the core leak under a pressure test, but you'll be able to smell coolant inside the passenger cab of the vehicle.


Each radiator cap has a specific amount of pressure that it will hold. The radiator cap pressure rating system shows a range of pressures that the individual cap has been tested for. Even with a cap that is properly rated, it may be necessary to do a physical radiator cap pressure check to determine the maximum pressure that the cap will hold. For the best chance of using the proper radiator cap and parts, always check your vehicle manual and resources from the manufacture to determine what type of radiator cap should be used with your vehicle. Select your caps and other parts accordingly.

Understanding Radiator Cap Pressure Ratings - CarsDirect

Place of Origin: China
Brand Name: BOWShine
Certification: CE
Model Number: AMT003
Voltage: Radiator Pressure Tester Kit Auto Repair Tool
Power: Radiator Pressure Tester Kit Auto Repair Tool

Radiator Pressure Tester Kit - Harbor Freight Tools


Each radiator cap has a specific amount of pressure that it will hold. The radiator cap pressure rating system shows a range of pressures that the individual cap has been tested for. Even with a cap that is properly rated, it may be necessary to do a physical radiator cap pressure check to determine the maximum pressure that the cap will hold. For the best chance of using the proper radiator cap and parts, always check your vehicle manual and resources from the manufacture to determine what type of radiator cap should be used with your vehicle. Select your caps and other parts accordingly.

Radiator Pressure Check
Remove the radiator cap (before the engine gets hot and the cooling system is under pressure) and look for bubbles that may indicate a blown headgasket, cracked head, or some other problem that allows combustion pressure to get into the cooling system. A cooling system pressure tester will provide the same information.