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2008 ForTwo odor, chasing fuel leak (bad fuel pump)

7358 Views 12 Replies 3 Participants Last post by  den458, 
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Revisited my 2008 ForTwo with an odor / fuel leak, after it having sat since about last September. Sad the recall didn’t address fuel leaks yet. Started & drove the car into my garage (so as not to annoy neighbors), now up on jack-stands, up doubly-safe with solid cinder blocks under the tires, emergency brake pulled hard. Engine ran not more than 2 minutes. Gas odor returned. Rear portion of undertray off with 4 screws. I saw nothing wet, but could see a faint residue where maybe something has leaked in the past. Started the car for 10 seconds then off, nothing wet. Restarted the car for 60 seconds then off. Fuel slowly seeping down on the passenger-side forward-corner of the fuel tank & dripping onto my floor. Took a movie with my phone. Turned on a large fan to blow air rearward out of my garage. Reviewing steps for tank removal next so I can see the issue. Tank shows half-full BTW, bummer. Update to follow.
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My $0.02...

The charcoal canister and its associated hoses/valves?

Possibly the now almost empty tank does not have a high enough level of fuel to seep out of a crack or fitting?

A plastic fitting on the fuel pump is a known weakness... it tends to snap off. I forget if it is the outlet or return line... I'd be tempted to wiggle them a bit and see what happens.
:shrug:
~toaster
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den458 said:
If I conclude its the (weak-link) connector, I'll consider my repair options, like conventional fuel hose & hose clamps. Thoughts?
Click to expand...

The rigid plastic hose is likely preformed, but the quick release connector is likely a standard automotive part. My ford truck uses them on the fuel filter. Try NAPA.

I believe inside the fitting is a replaceable O-ring... again a NAPA part.

~toaster
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See the photos in this post by jsenka for the typical spot where the break occurs:

https://www.smartcarofamerica.com/forums/f353/fuel-leak-77546/#post921290

~toaster
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