Fuel Inlet Testing

For a temporary fuel flow test to check for fuel inlet air leaks or inlet restrictions, assemble a "T" with barbed fittings that will allow you to remove the hose easily. Put a clear plastic hose with nylon webbing on one side of the "T" and install on the fuel filter barb. Onthe other side, install the fuel hose. Install a vacuum gauge at the third fitting that reads from 0 to 30 inches Hg. The vacuum should NOT be above about 2 inches Hg when running. Also, look for air bubbles!

*Please refer to appropriate

Manual for test values throughout the RPM range. **Complete Fuel Module assy, if low pressure pump needs to be replaced, complete pump must be ordered.