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diagnosing fuel leak

Toasty

Toasty

New member
So i'm going over scenarios in my head on where the leak is on my newly installed fuel pump assembly... i wont be able to dig into it until tonight, but i'm going through things in my head because... well just because i am...

first thing, is it leaked when i filled the tank full of fuel, car was NOT running.

anyway ... it's possible that it's leaking around the o-ring, since we re-used the old one.

beyond that, is there any chance that fuel was pushed up either of the 3 fuel line connectors and leaked there (would only be possible if one of the lines wasnt fully seated)


please post up any thoughts... any thoughts at all!
 
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My bet is on the o-ring seal. I've seen it happen on a few cars. I think one, we replacet it 3 times before we got it to seal properly.
 
i think i got it licked. --

when i took the pump back out, it certainly looked like the o-ring was half out of place, not in the rim where it belonged. i thouroughly inspected the gasket for any signs of damage, but didnt find any. so a little bit of lubrication, and i pushed that sucker back in the hole and put the snap ring back in place. i used my gas can and filled the tank all the way up, and it didnt come out anywhere. --but i was still getting the DTC indicating low tank pressure. stupid me decided to try and swap the one from the old pump assembly to the new one. OOPS! -- removing the one from the newly installed pump resulted in a mini fuel geiser there for a second... i guess it is holding pressure at the seal after all. :o but swapping the sensor didnt fix it. :th_scratchhead: sooo... as much as i didnt want to, made mini geiser again to put the new sensor back on... then went and dug for a tiny jeweler's screwdriver and bent the connectors on the female plug so they made better contact (apparently probing the wires with my voltmeter spaced out the connector too much.) No more SES light!!!!


so after the mini geiser, there was a bit of room left in the top of the tank again. so after getting the top of the tank cleaned up, and getting things straightened out, i drove down a few blocks to the gas station to top of the tank again to check for leaks. (also checked before filling up to see if driving/braking made any sloshing leaks... none) Filled the tank back up (about a gallon fit) and NO LEAKS YAAAAY

I'm gonna test it out on the commute to work tomorrow-- should still be full enough to see any potential leaks i think.
 
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