HPX install, now overflow tube leaking fuel - Ford Powerstroke Diesel Forum
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post #1 of 6 Old 01-06-2019, 10:41 AM Thread Starter
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HPX install, now overflow tube leaking fuel

So, I did the high pressure oil crossover install yesterday. In the first startup after install I found I didn't have the connections tight enough and squirted oil all over the engine bay. Using a spray degreaser I cleaned up everything, wiped down, and then used a spray bottle with hot water to clean off the degreaser. So, tightened the HPX connectors on the new line and a cleaner bay I started it up and the HPX was not leaking. I gave it a few minutes to idle and backed it up to clean the mess on the ground, I walked back to the truck and noticed a dripping that turned out to be fuel. I looked under and there's what appears to be an "overflow drain tube" at the bottom of the truck dripping diesel fuel. I took it for a ten minute drive and it is still dripping.

It was not doing this before the install. Is this just the ECM relearning or something? Has anybody else seen this?
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post #2 of 6 Old 01-06-2019, 10:47 AM
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This is the 3/8" metal tube, against the motor, and seen over the top of the pass side ft tire?

If so, that's your Filter Housing Drain (mostly for purging Water) and something that is Not computer controlled. Simple fix/replacement, a common issue for us -> Welcome to guzzle's PSD Fuel Filter Drain Valve Repair Web Page

I'm thinking coincidence...
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post #3 of 6 Old 01-06-2019, 10:59 AM
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Wiping it down you may have opened the fuel bowl drain valve.

Look for the yellow lever, one way is open, one way is closed.
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post #4 of 6 Old 01-06-2019, 11:48 AM
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Quote:
Originally Posted by ars5147 View Post
Wiping it down you may have opened the fuel bowl drain valve.

Look for the yellow lever, one way is open, one way is closed.
GOOD THOUGHT right there...
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post #5 of 6 Old 01-06-2019, 04:01 PM Thread Starter
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Those are great ideas, thank you both. I cycled the valve open and closed and will see if that clears up the issue tomorrow. If not, I will checkout that o-ring kit.

Thank you again!
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post #6 of 6 Old 01-07-2019, 10:07 AM Thread Starter
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Yes, that valve must have been just slightly open when I was cleaning. No more leaking, thanks!
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