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Home >> Ford >> 2002 >> Taurus SES, 3.0 S >> Repair and Diagnosis >> External Pages >> Different car >> Section 979 (Noise, Vibration & Harshness) >> Description And Operation >> Noise, Vibration And Harshness (NVH) >> Glossary of Terms >> Drive Engine Run-Up (DERU) Test

Drive Engine Run-Up (DERU) Test

WARNING: This page is about a different car, the 2003 Mercury Sable and 2003 Ford Taurus. However, it is still accessible from the selected car via links, so may be relevant.

The operation of the engine through the normal rpm range with the vehicle standing still, the brakes applied and the transmission engaged. This test is used for noise and vibration checks.

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