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Home >> Ford >> 2002 >> Taurus SES, 3.0 S >> Repair and Diagnosis >> External Pages >> Different car >> Section 971 (Noise, Vibration & Harshness -- Excursion & F250-F550 Super Duty) >> 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 Ford Pickup, 2003 Ford F550 Super Duty, 2003 Ford F450 Super Duty, and 2003 Ford Excursion. 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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