Hey folks,

I was wondering if anyone is familiar with clearing the gas tank venting system on an S coupe.

My gas gauge had seemingly been reading WAY LOW. I have always pumped my gas with the "handle retention" clip engaged on the max setting with no problems.

Apparently, after 253K, there is now apparently a problem. Happens at different stations, so not believed to be related to flow rate when handle retention clip is engaged on high.

If I slow pump it (control by hand) and listen to the pitch of the fuel filling, I can easily get another 3+ gallons into the car.

Anyone out there with experience? I've never had to do this on any of my other rides.

Thanks

 

Sounds like a canister purge valve sticking closed or maybe time for a new canister. The charcoal may be plugged to the point that the vapors cannot pass through fast enough.

 

I would think the canister purge valve sticking closed would through a handy code so I wouldn't have to think about it. I'll go after the charcoal canister first, but obviously check both while I have it on a lift to replace the last of the 4 LCAs on my Saturn and my former 95 SC2

Thank you as always, sir.