BrettM
NAXJA Forum User
- Location
- michifornia
I searched a little, and I'll go do some more... but first:
I have a no-start issue with my '88 4.0, and I'm pretty sure it's a fuel issue. When I put the key in the ON position I can clearly hear the fuel pump click on for a few seconds. When I depress the schrader valve on the fuel rail to check pressure, it gives a tiny spurt, about 3 inches for less than 1/2 second, then nothing. If I press it again, nothing. If I turn it off then back on I can get another little spurt out of it.
Question; shouldn't it maintain pressure?
So if I am correct that I have a fuel issue... I replaced the fuel filter a few weeks ago, I can clearly hear the fuel pump working, I already bypassed the ballast resistor.
Question; what else is involved in the fuel system?
I have a no-start issue with my '88 4.0, and I'm pretty sure it's a fuel issue. When I put the key in the ON position I can clearly hear the fuel pump click on for a few seconds. When I depress the schrader valve on the fuel rail to check pressure, it gives a tiny spurt, about 3 inches for less than 1/2 second, then nothing. If I press it again, nothing. If I turn it off then back on I can get another little spurt out of it.
Question; shouldn't it maintain pressure?
So if I am correct that I have a fuel issue... I replaced the fuel filter a few weeks ago, I can clearly hear the fuel pump working, I already bypassed the ballast resistor.
Question; what else is involved in the fuel system?