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Home >> Ford >> 2003 >> Excursion 5.4 L, 4WD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 3 (Engine Controls - System & Component Testing - 7.3L Diesel) >> Engine Performance Diagnostic Procedures >> Test 11: Crankcase Pressure Test >> Purpose
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Test 11: Crankcase Pressure Test: Purpose

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This test is performed to measure crankcase pressure. Crankcase pressure is an indication of how well cylinders are sealing.

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