I don't think that this would be a regulator problem. The regulator has a diaphragm that is held under pressure with a spring. When the pump primes the fuel rail, it sends as much fuel as the pump is able to in the few seconds it is activated. If the regulator is faulty, it won't matter how many times you prime the rail. If it is not holding the pressure it should, then either the spring has weakened or the diaphragm is ruptured. In either of these cases, no amount of priming will bring the pressure up to where it needs to be held. If the regulator was only letting a small amount of fuel to return to the tank when it shouldn't, it wouldn't take several attempts to prime the rail to get it up to the pressure it needs to be at.Hawkeye21 said:Heyya, responding to fold_em83's response. When I start my car, in order for it to start efficiently, I prime the pump, whereas, I turn the ignition to on, then, turn it off, then on again, repeat a third time, then start, car cranks up normally, albeit quickly.
However, when just going from start to crank starting cold, it takes a while. I was thinking the fuel pump seeing as though it may not be putting out enough fuel sometimes, as I have a miss while idling as well. I was just gonna have the gas tank cleaned out, and fuel pump and filter changed to advoid any hassle.
Do you think that would solve anything, or would there be something I should check first, like the pressure regulator? Thanks