EGR Cooler Bench Test
WARNING: This page is about a different car, the 2015 RAM 3500 HD and 2015 RAM 2500 HD. However, it is still accessible from the selected car via links, so may be relevant.
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- Remove the EGR cooler and place on a bench for testing. Refer to COOLER, EGR, REMOVAL .
- Install a plug into one of the EGR cooler coolant ports.
- In the opposite port, install the pressure test adapter.NOTE:
The plug and the adapter must have an air tight fit to prevent misdiagnosis.
- Pump up the commercially available pressure tool, while observing the pressure gage.NOTE:
Do not exceed the pressure indicated on the pressure cap of the cooling system.
- Once the EGR cooler has been pressurized, the pressure should remain steady.
- If the EGR cooler does not remain pressurized, the EGR cooler has an internal leak and must be replaced.
- If the EGR cooler holds a steady pressure, then refer to the engine internal leakage inspection. Refer to DIAGNOSIS AND TESTING .