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Home >> Ford >> 2003 >> Pickup F150, 4D Pickup, 4.2 2, Automatic >> Repair and Diagnosis >> Engine Performance >> Specifications >> Engine Controls - Service & Adjustment Specifications >> Mechanical Checks >> Engine Compression >> Diesel Engines

Diesel Engines

NOTE: On diesel engines, a mechanical compression testing procedure is not available from manufacturer.

To diagnose possible cylinder compression loss, perform CRANKCASE PRESSURE TEST under ENGINE PERFORMANCE DIAGNOSIS in appropriate SYSTEM & COMPONENT TESTS - DIESEL article and/or KOER CYLINDER CONTRIBUTION SELF-TEST under QUICK TEST in appropriate SELF-DIAGNOSTICS - DIESEL article.