Final steps to my 5.4 swap, please help with fuel system. - Mustang Boards

Modular 4.6L Tech For all your 1996-2005+ 2V, 3V, and 4V modular motor needs.

Thread Tools Search this Thread
Old 04-10-2015, 11:49 PM
Thread Starter
Join Date: Jul 2011
Posts: 36
Default Final steps to my 5.4 swap, please help with fuel system.

I have been working on and off for 4 years on a 5.4 swap. The car is a 1998 GT, and I have placed neatly a 2002 expedition 5.4. I had the engine running, and did a break in phase. I was loosing oil pressure, and had a clutch squeak issue. So I pulled the motor, upgraded the oil pump, and replaced all the clutch moving parts.

Dropped the motor back in last week, it is now 100% back together! No nuts or bolts left, lol.

Go to start it up today, and nothing. I am getting no fuel at the fuel lines on the rail.

- Checked the interrupt button, and it is pressed in, tapped it till it popped up, then pushed it down.
- Checked the 20a fuse in the engine bay and it is good.
- Cut off the fuel filter (did not have ford connectors, instead it was a previous hack job). The lines were totally dry.
- With the lines disconnected, I had the key turned to the on position, and no fuel came out, nor did I hear the pump.
- Tried to turn it over, with the line held in a bucket and nothing.
- Unplugged the plug under the gas tank, and checked all the pins for power, while my GF cycled the key from off to on, while I was testing. I looked for full and micro voltage, and saw no fluctuation.
- I can feel the relay in the passenger side wheelwell clicking when the key is turned to on. (it clicks more than once per keyturn, it is not simply, on click, off click. It clicks maybe 3 times or 4 every cycle.)
- I can see voltage at the plug on the bottom of the emergency button.

I still do not have voltage at the plug under the bumper at the gas tank... To test the fuel pump, is there a way that I can hook the battery up to the plug harness and force the pump to come on, to check its operation? Will I break the pump with battery amps? Does anyone see anything above that stands out, including the clicking relay, I do not have another mustang around to compare it to?

Here are some vids just for show! I got a lot of help on these forums when I did the build, including a great seller that gave me some awesome parts! Perhaps this is the final challenge!!!

Pre-tune, first start,
Post tune, Pre break in.

Help me make one more video when it's done!!!
Reply With Quote

Related Topics
Thread Thread Starter Forum Replies Last Post
need help on fuel system Redrum V6 Tech Forums 9 05-19-2008 08:15 AM
Air/fuel gauge Question. Please help. Troyzstang Modular 4.6L Tech 27 05-01-2006 10:12 AM
first steps TEXASPAUL Modular 4.6L Tech 9 12-20-2005 10:49 PM
shaving weight write-up (rear seat removal steps) ColoradoStang General Tech Forum 0 08-26-2005 01:43 PM
What are the first steps in tuning my stang TEXASPAUL V6 Tech Forums 27 07-14-2005 11:24 AM

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

Featured Sponsors
Vendor Directory

All times are GMT -7. The time now is 08:32 AM.

© 2018 MH Sub I, LLC dba Internet Brands
We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to and affiliated sites.