No getting enough fuel to run

240,000 MILES • 4.7L • V8 • 4WD • AUTOMATIC
Avatar
RANDYALLAN
  • MEMBER
  • 1 POST
Pump runs up to pressure stops will not start again until you turn it off and back on. not enough fuel for it to run.
Jun 22, 2020 at 8:17 AM
Avatar
KASEKENNY
  • ✓Experienced Mechanic
  • 18,907 POSTS
Do you know what the actual pressure is when you turn the key on? You said it runs up to pressure but I am just wondering what the actual PSI number is.

This sounds like a pump which is why we need to start with a pressure test if we have not done that.

https://www.2carpros.com/articles/how-to-check-fuel-system-pressure-and-regulator

Let me know what you find and we can go from there. Thanks
Jun 22, 2020 at 9:43 AM
Avatar
RANDYALLAN
  • MEMBER
  • 1 POST
I have not done a pressure test yet. i replaced the fuel pump.
Jun 23, 2020 at 4:45 AM
Avatar
KASEKENNY
  • ✓Experienced Mechanic
  • 18,907 POSTS
Okay. Then I would suggest we start with the basics and get the pressure just so we don't make an assumption and miss something. Let me know if you have questions on this. Thanks
Jun 23, 2020 at 1:00 PM
Avatar
STEVE W.
  • ✓Experienced Mechanic
  • 15,366 POSTS
It sounds like the poster is saying the pump turns on to prime, then doesn't come back on when the engine is turning over to start? Is that correct? Does it act like it wants to start at all or nothing? If nothing, does it have a tachometer and is that moving while you are cranking the engine over?
Jun 23, 2020 at 1:06 PM
Avatar
STRAILER
  • ✓Experienced Mechanic
  • 55,540 POSTS
When you replace the pump did you do the relay? Here is a guide to help test it and the relay location as well in the diagrams below:

https://www.2carpros.com/articles/how-to-check-an-electrical-relay-and-wiring-control-circuit

Check out the diagrams (below). Please let us know what happens.
Jun 25, 2020 at 3:24 AM
Add a reply
Join 2CarPros for free, one of the most advanced car repair communities on the internet. From first-time drivers to seasoned mechanics, everyone is welcome to reply, share details, and get better answers. You can add a temporary image or video first; uploads are limited to 20 MB.

Frequently Asked Problems for This Vehicle