SuperAwesomeGuy
New Member
Getting 10 psi on the rail though what's weird is that the pressure quickly decreases
Sent from my Moto G (5) Plus using Tapatalk
Sent from my Moto G (5) Plus using Tapatalk
Welcome Visitor! Please take a few seconds and Register for our forum. Even if you don't want to post, you can still 'Like' and react to posts.
4 cycles gives me roughly 9 psi of fuel pressure. Filter is new. Pressure bleeds out within 5 seconds after primingIf it doesn't come up after a few priming cycles, first check fuel level, then filter, then make sure the external pump is working, in that order.
You can't test pressure bleed of accurately when it is that low. Get it right, then worry about bleed off. On return style systems it can drop up to 10 PSI from the idle pressure almost immediately and that is acceptable. Then it may bleed another 5 PSI off slowly over a few hours.
If pressure loss is great or faster than that first check for a ruptured FPR, and if that is OK look at replacing the little fuel module near the transfer case. Unlike newer single-pump trucks your pressure check valve is in that unit, not in the tank pump. It's an artifact of the way the system was designed for use with a single or dual tank setup.
Ok. Verify that the fuel pump on the frame is running. I doubt it is, since the tank pump is supposed to produce about 10 PSI, and the frame pump does the rest.4 cycles gives me roughly 9 psi of fuel pressure. Filter is new. Pressure bleeds out within 5 seconds after priming
Sent from my Moto G (5) Plus using Tapatalk
U sure there should be a valve on fuel pump that would cause bleed off so would might answer for both problemsOk. Verify that the fuel pump on the frame is running. I doubt it is, since the tank pump is supposed to produce about 10 PSI, and the frame pump does the rest.
Once you are able to get a proper 35 to 40 PSI you can look at the bleed down rate.
Can we please try that question again, but with more punctuation?U sure there should be a valve on fuel pump that would cause bleed off so would might answer for both problems
Sent from my Moto G (5) Plus using Tapatalk