The video just shows the engine starting and running normally, so you know the fuel pump and circuit are working properly. I suspect you expect to hear the fuel pump running any time the ignition switch is in the "run" position. In fact, it had better not be running unless you're cranking the engine. If the fuel pump were to run any time the ignition switch is on, that would pose a serious fire hazard if a fuel line got ruptured in a crash. With a break in the fuel line, there can't be any fuel pressure, and with no fuel pressure, the engine will stall. If the fuel pump kept on running, it would dump raw gas on the ground creating a major fire hazard. Instead, the Engine Computer turns the fuel pump relay off when the engine stops running.
Typically you should hear the fuel pump run for at most, one or two seconds after you turn on the ignition switch. That is done to insure fuel pressure is up for starting in case it bled down over days or weeks. After that, the pump doesn't turn on again until the engine is rotating, (cranking or running).
If you're experiencing a long crank time when the engine has been off for a while, it is commonly caused by loss of fuel pressure due to a leaking injector. That is not uncommon at the mileage you listed. The best way to verify this is by watching what happens to fuel pressure after you stop the engine. For the benefit of others researching this topic, here's a link to an article on using a fuel pressure gauge:
https://www.2carpros.com/articles/how-to-check-fuel-system-pressure-and-regulator
Fuel pressure should hold for weeks, but if an injector is leaking, that pressure can bleed down in as little as a few minutes. If that is what you find, an easy work-around is to turn the ignition switch on, wait for the fuel pump to turn off after a few seconds, turn the switch off, then back on again. Wait a few seconds, then crank the engine.
During cranking, the starter motor draws battery voltage down to as low as ten volts. That low voltage also feeds the fuel pump, so it runs slower than normal. Along with that, if fuel pressure was low, what little builds up during cranking is bled off just as fast by the firing injectors. The engine won't run as long as fuel pressure is too low. That results in an unusually-long crank time to get the engine started. By cycling the ignition switch multiple times, it gives the fuel pump more time to build up the pressure before you start cranking the engine.
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Saturday, October 31st, 2020 AT 9:18 PM
