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Fuel systems are a little bit more complex than they may seem at first. The general concept is as follows, a tank stores the fuel and a pump sends the fuel down a line into the engine. But with a turbo diesel like the 7.3 Powerstroke, you need very high pressure to inject that fuel properly. Putting that amount of pressure on the entire system would be complicated and would lead to a tremendous number of issues. That’s where the 7.3 Powerstroke lift pump comes in. +Read more
A 1997 7.3 Powerstroke lift pump is a lower pressure pump that is tasked with sending the fuel from the fuel tank to a higher pressure injection pump. A properly functioning lift pump for 7.3 Powerstroke will ensure that there is a steady supply of fuel reaching the engine and that everything runs smoothly.
The truck’s fuel system also includes the 7.3 Powerstroke fuel sending unit. The 7.3 fuel sending unit serves a basic but essential function. It measures and reports the amount of gas remaining in the tank. So if your fuel gauge seems faulty, this is likely the cause. Diesel fuel systems have to be pressurized, so a faulty fuel sending unit could lead to major issues if you let your fuel tank run dry.
Problems with a 7.3 lift pump are fairly easy to spot. If enough fuel isn’t reaching the engine, the check engine light will likely switch on. There’s a chance the engine will sputter and struggle as it struggles to get enough diesel. A failing Ford 7.3 lift pump may also create a whining noise that seems to be coming from the fuel tank. Less obvious signs include a decrease in fuel efficiency. If your truck is having these troubles, then it may be time to replace the lift pump in your 7.3 Powerstroke.
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