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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 8B: Fuel Pressure Test >> Recommended Procedure (Econoline)
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Recommended Procedure (Econoline)

WARNING: This page is about a different variant/trim than selected.

If necessary, remove generator and bracket to access pipe plug. Remove 1/8" pipe plug from top front of right cylinder head. See Figure. Install fuel pressure gauge. Start engine. Check fuel pressure with a full load on engine. DO NOT brake torque engine for more than 10 seconds. If fuel pressure is 45-80 psi (310-552 kPa), fuel pressure is okay. If fuel pressure is not 45-80 psi (310-552 kPa), replace right fuel check valve. Check valve is located in rear of right cylinder head between fuel inlet line and cylinder head.

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