dodge symptoms of low voltage ram pressure fuel

#Dodge symptoms of low voltage ram pressure fuel driver

Actually the long crank comes from a pump that leaks down over a long period of time (night) and takes a short while to build sufficient psi and clear air from the lines.

#Dodge symptoms of low voltage ram pressure fuel driver

That would be what the average driver deduces from logic, but we both know temperature has nothing to do with it. A long crank time that only appears in 'cold mornings', but runs great throughout the day as it 'warms up', and fires right up after it has ran a while.

The numbers vary slightly from oem to oem but that's a good baseline, although they should hold rock steady.Īs you probably already know, a pump that leaks down produces these typical symptoms. This is tbi and tbi should range around 15psi pretty much all times. Walbro does too, but not many if any for low psi systems. Sorry for the premature diagnosis, it could be leaking elsewhere inside the tank.Ĭarter makes good pumps. If i have battery voltage at the pump and and the pump is capable of achieving 50 psi with the return line pinched off, is it safe to assume the only possible cause is a restriction after the pump but before the pressure gauge? Am i accurate in assuming that the fuel pressure regulator works not only off of pressure but flow as well, so that reduced flow will cause low pressure? i just replaced the fuel pump today and verified that the line from the tank was not pinched, nor do the steel lines look kinked.Ĭan i blow compressed air backwards through the supply line into the tank without damaging the fuel pump? I assume a small pressure drop across the fuel filter could be expected. My concern is that i should still be reading 18-20 psi. Its also possible that i may be getting a little more pressure at the throttle body, i swapped back to the original fuel pressure regulator as it gave me a little higher pressure but i changed the location of the fuel pressure gauge at the same time. I do have a compressor, and am planning on replacing the rubber lines from the fuel filter to the throttle body.