13 captured repliesDiscussion pagination complete · Source accounts, not a confirmed diagnosis
THIS DISCUSSION / SOURCE-DERIVED OVERVIEW
Discussion summary
YOUR RESEARCHFuel pump
Leading reported evidence
Check ball valve
Suggestion or failed attempt
No successful repair reported for this finding.
0
Reported fixes
0
Unsuccessful attempts
1
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Suggestion
Not sure if it's something to do with the tank level sensor, a check ball valve to keep it from dumping gasoline out if the car rolls, or what.
Leading evidence: 'Check ball valve' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Check ball valve' (1 discussions). For that action, 0 discussions report a resolution and 0 report an unsuccessful attempt. No action has an explicit, attributable resolution report under the current rules. These are forum reports and suggestions, not a confirmed diagnosis.
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Suggestion
It would be safe to retrieve ball and replace tube so it will function as designed.
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Suggestion
And don�t use a vacuum cleaner to suck out the gas!
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13 eligible posts · 0 unverified posts · 1 discussions match the subject in their title or opening post.
Rennlist: 1 discussions
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Generation: 20261027T031046Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources
So having taken my 1999 C2 out of winter hibernation finally, I usually try to drive it to burn off the tank of stabilized fuel as low as possible before filling it with fresh fuel. Well the other day as I'm cruising around I start noticing a rattling noise. Fuel gage indicated a bit below half. Sounded like a ball bouncing around in my fuel tank so drove the mile or so home to investigate. Tore the frunk carpets out in case I left a socket or something in there, but found nothing. Found that I could reproduce the sound by rocking the car side to side. Jacked it up and removed the under panels and carefully listened from below while rocking the car. Definitely coming from the tank area. Could it be a faulty fuel sender or is it the pump? No check engine light, no codes. I'm stumped!
My car's done the same thing as long as I've had it. Sounds like a loose wrench/socket/something rolling around in the tank or trunk area. I only ever hear it when rocking the car back and forth by hand in the garage. Not sure if it's something to do with the tank level sensor, a check ball valve to keep it from dumping gasoline out if the car rolls, or what. Zero symptoms when driving, so I've decided to ignore it.
I don't recall how buoyant the ball is, it may help with leakage on overturn, may also help to keep from overfilling and flooding the charcoal canister on fillup. It would be safe to retrieve ball and replace tube so it will function as designed.
I believe the fuel pump removal procedure - at least to open the top access port - isn�t that hard to do? Hard to see in there maybe, but an LED flashlight an/or an iPhone camera with light might be enough to see what�s in there?
Yes I think I will order a new gasket (only a few pesos) and have a peak. I put it out there to see if anyone had experienced a similar thing and could give a definitive answer so that I could just order parts and do it all in one go but alas...I shall investigate further.
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Hard to see in there maybe, but an LED flashlight an/or an iPhone camera with light might be enough to see what’s in there?"
^^ Just don't use a match or a lighter...
