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Home >> Ford >> 2003 >> Excursion 7.3 F, 4WD >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - System & Component Testing - 7.3L Diesel >> Engine Performance Diagnostic Procedures >> Test 1: Visual Engine/Chassis Inspection >> Recommended Procedure
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Recommended Procedure

  1. Check for disconnected or pinched manifold absolute pressure sensor hose. Inspect fuel system, including fuel tank and fuel lines for kinks, bends and leakage. Repair as necessary. Check oil lines and high pressure oil pump for leaks. Repair as necessary.
  2. Inspect cooling system. Check radiator and heater hoses for leaks. Check all wiring harness connectors for damaged pins, corrosion and loose wires. Repair connectors as necessary. On Excursion and F250-550, check intercooler and wastegate control solenoid for damage or kinked hoses. Replace hoses as necessary.