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F150 STX 2005 4.6L - Fuel Pump swap

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Old 07-28-2016, 01:53 PM
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Question F150 STX 2005 4.6L - Fuel Pump swap

Howdy!

So I have been trying to get my fuel pump and gauge working correctly, Previously it had always been showing a Full tank then slightly tapper off to 3/4 a tank (which really meant empty, So dropped the Gas tank pulled the Fuel Pump assembly out and replaced the Pump and Fuel Filter, Reattached all fuel lines and connections. After all the fuel lines filled back up it finally started and 5-10 cranks. Then It immediately dropped to showing LOW FUEL in the LCD.

At this point I was like sweet! fixed it, drove it down the road and put 12 gals in to see if it changed or anything on the float assembly had moved up. Drove it around an extra few miles around the Block and still show's LOW FUEL. Even this morning after letting it sit it had not changed.

My guess is that the connector to the fuel pump assembly is not sending data back to the gauge.

Any ways if you can advise me on something or a thread that I have over looked feel free to post away. Ill be checking the ground wires tonight to see if its just a bad connection or the pins are not connecting correctly.

Here are a few pictures to help someone else down the road:

This was a F**kin hard to do by yourself by the way.




















Old 07-29-2016, 10:53 AM
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Lightbulb Fix - Cable connection pins not fully connected

I was able to check the ground and lead wires and had power, after looking at the connector it was inserted but not really secured, I was able to reconnect the line and it is now reading correct fuel levels!

Picture attached with connect that was loose. Also added some Dielectric grease to help seal that connection as best I could.





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