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Home >> Ford >> 2004 >> Mustang Mach 1, Standard >> Repair and Diagnosis (Single Page) >> General Information >> OEM General Information >> Noise, Vibration & Harshness >> Description And Operation >> Noise, Vibration And Harshness (NVH) >> Glossary of Terms >> Neutral Engine Run-Up (NERU) Test

Neutral Engine Run-Up (NERU) Test

The operation of the engine through the normal rpm range with the vehicle standing still and the transmission disengaged. This test is used to identify engine related vibrations.