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Home >> Ford >> 2022 >> Mustang Mach 1 Premium, Automatic Trans >> Repair and Diagnosis >> Engine Performance >> Fuel Delivery >> Fuel System - General Information - 5.0L 32V Ti-VCT (359KW/486PS) (WU)/5.0L Ti-VCT V8 (343KW/466PS) (MF) >> Diagnosis And Testing >> Fuel System >> Symptom Chart(s) >> Symptom Chart: Fuel System

Symptom Chart: Fuel System

Diagnostics in this service information assume a certain skill level and knowledge of Ford-specific diagnostic practices. REFER to: Diagnostic Trouble Code Charts . for information regarding Ford-specific diagnostic practices.

Symptom Chart 

Condition Possible Sources Actions
Slow to fill Fuel tank filler pipe
Fuel tank filler pipe vent tube, if equipped
EVAPsystem
Fuel tank inlet check valve (part of the fuel tank)
Fuel level vent valve (part of the fuel tank)		 Refer to GO to Pinpoint Test A 
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