![]() Pressure releasing means the pressure tester can be removed.įix cooling system parts yourself like the radiator, thermostat, coolant reservoir, water pump, and more with many videos for different makes and models in 1A Auto’s video library. Twist the connector counterclockwise and unlock it. Inspect parts like the radiator, upper and lower radiator hoses and hose clamps, water pump, thermostat, heater core hoses/firewall, head gaskets, intake gaskets depending on the engine, and the interior carpet near the firewall for leaks If the level drops significantly, there is a leak. If the system holds pressure at the set pressure on the gauge, check the gauge over a span of 30 minutes and see if the pressure has dropped. Install the tester on the neck of the radiator or the coolant reservoir, and pump until you reach the pressure. The slower the gauge drops, the smaller the leak. Use a radiator pressure tester to test for leaks. If the pressure gauge drops quickly, there is a leak. Most cooling systems’ pressure measures between 13 and 16 psi. The TLRAD Automotive Radiator Pressure Tester Kit comes complete with pressure test adapters, rad cap test adapters, pressure test pump, thermometer & case. Keep pumping the pressure tester to apply pressure to the cooling system without going over the system’s psi number on the radiator cap, which the pressure tester’s gauge measures. ![]() Apply Pressure to the System without Exceeding the System’s psi by Pumping the Tester.Check the Radiator Cap for the System’s psiĬheck the radiator cap to see how much pressure to apply without going over this number.Push down and twist the connector clockwise until you feel it click and it locks in place Tighten the coolant pressure tester to the adapter or the radiator or coolant reservoir. If you need an adapter and your coolant pressure tester kit has one, connect it to the radiator or the coolant reservoir. If applying the tester to the radiator, remove the radiator cap once the system is cool and depressurized. If you plan on removing and fixing a part, add water to not waste coolant since the system will be drained and refilled If the coolant level is low, add water or coolant to raise it. Steps for a Coolant or Radiator Pressure Test
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