Fuel Leak - Ford Powerstroke Diesel Forum
 
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post #1 of 3 Old 01-25-2014, 06:32 AM Thread Starter
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Fuel Leak

I've got a 2002 7.3 that has developed a very small fuel leak. 190,000+ miles and just had the fuel pump replaced. Since replacing the pump I started noticing I could smell raw fuel while waiting for the "wait to start: light to go out, especially on these cold mornings when the heater blower would already be on. Finally noticed a very small amount of fuel had dripped off the back of the motor and started looking. The area around the filter on top of the motor is the wettest but I can not find the source. I've looked with just the switch on and with the truck running but can't find where it is coming from. Anybody got any ideas? Gasket on the filter housing, trash in the water separator valve, small crack.....I'm at a loss.
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post #2 of 3 Old 01-25-2014, 11:08 AM
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I use paper towel to narrow down the source sometimes. Stick some around, some under the filter, some by the lines, small pieces under things like the return (regulator) line. Turn the key to On and see where it first appears (pump only runs for @15sec w/each cycle though). The common places are the drain valve, fpr, cap, and the steel lines have retaining clips that chafe through (ft dr side, rear pass attached to the heads). Hopefully. you'll see fuel soaked paper somewhere...
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post #3 of 3 Old 01-25-2014, 12:39 PM Thread Starter
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Quote:
Originally Posted by NoRalPh View Post
I use paper towel to narrow down the source sometimes. Stick some around, some under the filter, some by the lines, small pieces under things like the return (regulator) line. Turn the key to On and see where it first appears (pump only runs for @15sec w/each cycle though). The common places are the drain valve, fpr, cap, and the steel lines have retaining clips that chafe through (ft dr side, rear pass attached to the heads). Hopefully. you'll see fuel soaked paper somewhere...
I'll try that. I've also got what looks like maybe a spoonful of standing fuel on top of the motor way down deep behind that filter housing. Guess I better soak that up first.
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