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z Check transmission fluid level. Repair as necessary. z Check secondary ignition system. See TEST JB: SECONDARY IGNITION under SYSTEM TESTS in z Check air intake system. See TEST HU: AIR INTAKE SYSTEM under SYSTEM TESTS in SELF- z Check fuel delivery system. See TEST HC: FUEL DELIVERY SYSTEM under SYSTEM TESTS in z Check exhaust system for restriction. See TEST HF: CATALYST EFFICIENCY MONITOR & z Check engine mechanical condition. Check compression, camshaft, valve train components, etc. and z If no problems are indicated, return to SYMPTOM DIAGNOSIS to identify any additional symptoms or VEHICLE FAILS EMISSIONS/EMISSIONS COMPLIANCE z Check fuel delivery system. See TEST HC: FUEL DELIVERY SYSTEM under SYSTEM TESTS in z Check emission related systems. See TEST HX: EVAPORATIVE EMISSION MONITOR & INTERMITTENTS INTERMITTENT PROBLEM DIAGNOSIS Intermittent diagnostic techniques help find and isolate root causes of intermittent faults associated with EEC z Customary mechanical system tests and inspections DO NOT reveal a problem. Mechanical component z Technical Service Bulletins (TSBs) have been reviewed. z QUICK TEST and associated SYSTEM TESTS have been completed without finding a fault, and TEST PROCEDURES Recreating Fault
2003 Ford Pickup F150 2003 ENGINE PERFORMANCE Trouble Shooting - No Codes - Bi-Fuel - Gasoline/LPG
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