Here are some of the most common causes of P0451 in general. If there are other EVAP related trouble codes, concentrate on them first and see if it helps remedy this one. You may also notice the slight smell of gas. Fuel mileage may suffer a bit, and certainly the service engine soon light will come one. Typically, P0451 will not affect the way that your Grand Marquis runs or drives.
P0451 is usually caused by either a bad EVAP pressure sensor, a clogged fuel tank relief valve, EVAP lines, EVAP wiring, or a bad fuel cap…. P0451 is usually caused by either a bad EVAP pressure sensor, a clogged fuel tank relief valve, EVAP lines, EVAP wiring, or a bad fuel cap. It means that your Mercury Grand Marquis‘s EVAP system has a pressure sensor that is malfunctioning in some way.
Packaged with double-layered foam wrap and heavy-gauge corrugated board to ensure product quality at installationLike all OBD-II trouble codes, P0451 has the same meaning for all vehicles.Fit tested on the very same vehicle application for which it was developed verifying first-hand that the design fits properly and can be easily installed.Engineered to stringent tolerances based on our Canadian engineers' in-depth knowledge of the OE part it's designed to replace.Each new fuel tank is road tested to ensure real world performance and to verify that each design meets our high standards for quality.Unit is leak tested after production to ensure product in free from fuel and / or evaporative leaks.
Made with corrosion resistant, OE approved, Ni Terne steel for durability.Lock ring included with each tank to reduce installation time and to ensure a complete repair.Unit is designed to OE fit, form and function requirements accomplished by leveraging our OE fuel system design expertise.Innovative engineering, manufacturing technology and quality control ensure that Spectra Premium fuel tanks meet or exceed the performance of the original equipment they replace.
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