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What is fuel pressure for 2003 ford f150 4.2l?

The fuel pressure for a 2003 Ford F-150 with a 4.2L engine should be between 35 and 45 PSI. However, this is a general range. It's crucial to consult your vehicle's repair manual or a reliable online source specific to that year, make, and model for the most accurate specification. Slight variations may exist depending on engine temperature and other operating conditions.