Folks,
My car has recently begun leaking -- spewing might be a more appropriate term -- diesel after I'ved filled the tank to full. For the last two fill-ups I (1) left the fuel cap off after parking in the garage and roughly a gallon spilled out on the passenger side and puddled by the driver's side rear tire; (2) put the cap on after filling and parked for a week at the small local airport. During that time I received a call from the airport hazmat crew to report that they cleaned up a diesel spill. (They left their message on my office phone -- how the heck they traced that down is unnervingly Big Brother, but that's an issue for another day.) To give you some idea how much spilled out, I was down a quarter tank at 40 miles. Normally the trip odometer reads 100+ at that point.
Does anyone have insight into potential causes? Since the tank is inside the car body, a rust through or other hole seems far fetched. A fuel line problem would constantly leak rather than when the fuel level is above a certain point. I'm guessing a plugged vent causing a pressure problem, but wouldn't leaving the cap off have equalized pressure? I saw something on the internet about a check valve on the tank. Could that be the culprit? Any suggestions or sharing experience with this problem would be appreciated.
MKJ
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