Replaced Fuel Pumps, now won't start.

[ranger58]

So I thought the problem was my tfi, replaced it, moved it, the whole nine yards. Anyways I replaced the in tank pump and the high pressure pump, and fuel filter. When I turn the key you can hear the in tank pump prime. I reset the inertia switch. When I turn the ignition, the engine just turns, so obviously no fuel is getting to the engine. Did I miss a step? Any help is much appreciated.

 

[dave2575]

Is your fuel system primed? You said you can hear the in-tank pump turn on but can you hear the inline pump turn on? It should turn on for a couple seconds. If there both turning on and the system is primed you should be able to check for pressure at the schrader valve on the fuel rail.

priming the fuel system=
If your fuel tank goes empty and you have to put gas in the tank you will have to prime the fuel system. It will take a little while for the fuel to get pumped through the entire fuel system (primed). So you cant just put some gas in and expect it to start right away. To prime the system you have to put enough gas in the tank to pump it through the system (1-2 gallons. trust me on that!) and then turn on the the ignition (key on but not starting) and listen for the HP fuel pump to turn on for a few seconds and then it will turn off on its own, then turn off the ignition and wait a couple seconds, try to listen for a relay under the hood to click off (2-3 seconds after the key is turned off), and then repeat the process(cycle) over and over tell the system is primed (try starting it every few cycles).

 

[Flat Toy]

You said you moved the TFI. If fuel pumps are kicking in I would start checking connections there. Make sure you have the TFI grounded.

 

[ranger58]

The tfi is not the problem, i did that a while ago. The Fuel pumps turn on but i opened the schrader valve and am not getting any pressure when i prime it.

 

[dave2575]

How long did you prime the system? It should take you a few minutes for the system to fully prime. If both pumps are turning on then you will get pressure at the schrader valve once its primed.
And double check your fuel pumps wiring, I cant remember If the terminals are different sized or if its possible to cross the wires on the pump.

 

[ranger58]

I did prime it for a long time, kept doing it and cranking the engine till the battery died and i had to recharge it. I might just rip out all the fuel line and start over. I already have the new pumps (in tank and high pressure) so I might as well rebuild the fuel system and put in new lines, and a pressure regulator. Could that be my problem? Pressure regulator?

 

[dave2575]

Check the FPR by pulling off the vacuum hose and checking if you can see or smell gas inside the vacuum hose, if you do see or smell gas then the FPR is bad.

And as far as wanting to replace everything on the fuel system, I can't say "yes do it" or "no dont do it" its up to you. But what I can say is I have almost replaced my entire fuel system, except for the fuel rail I have replaced=
One fuel pressure regulator, the Two fuel tanks with both senders, the three fuel pumps, the five fuel filters, the six fuel injectors, and all the feed and return high pressure fuel hose.
Now my fuel system is all connected with... (as my girl at the time said "really pretty and shiny") billet aluminum parts with -6an -8an aluminum fittings with Kevlar woven and stainless steel braided high pressure fuel hose.
I paid allot for it and worked even harder on it , but in the end now I have a solid leak free and reliable fuel system.
"out of sight, out of mind" No worries is a beautiful thing!

 

[ranger58]

Ok its all good now, the high pressure pump that I replaced was put on backwards, and therefore no fuel was getting to the engine. There was a rubber stopper that came with the pump that said. "Place new fuel filter this side, and I guess with all the different models this pump fits, it was a bit confusing. All together I replaced all of these things to address my "Overheating" issue which then turned into a "TFI" issue and then into a "Vapor Lock" issue.
Water Pump
Radiator hoses and flush
Thermostat
TFI and relocation kit
In tank fuel pump and strainer
High pressure pump
Fuel filter
Fuel pressure regulator (did this just because) damn little part is expensive.
So with all the work and money that went into this, I pray that it will not have the problem of bogging down when it gets hot outside. But based on what I read in the forums I should have the problem taken care of with the whole fuel thing.

 

[dave2575]

quote dave2575-"And double check your fuel pumps wiring, I cant remember If the terminals are different sized or if its possible to cross the wires on the pump."
glad to hear that U figuerd it out. I thought it had to be the inline pump flowing backwards. Its odd to me that Ford would use a setup that could possibly have the inline pump mounted backwards and even leave enough play in the wiring to allow someone to plug it in while its mounted backwards, I mean how much are they saving by not putting a --> flow--> sticker on there pumps! lol

 

[LilBlueranger1988]

where did you get the pumps at