Today I drove quite a long ways but the last 50 miles was up a mountain from sea level to about 6000 ft. I did not drive fast or really hard. It’s kind of a gradual incline obviously since it takes 50 miles to go 6000 ft. But anyways at the top I noticed a lacking of power followed by a really loud fuel pump followed by a severe gas smell. I pulled over with the car still running opened my door and immediately saw fuel pouring out of the fuel door. I turned off the car and opened the fuel door and there was a crazy amount of pressure from the fumes blowing past the cap. I opened the cap and it sounded and felt like opening the drain plug on an air compressor. It hissed out fumes for about a minute and I felt the tank and it was hot and sounded like it was boiling. I could also hear air coming from the vents on top of the tank so they aren’t completely closed. This is the first time I have had this happen. I was scared that the tank was close to a dangerous level of pressure with gas fumes inside. The tank was about half full when it happened.
So any ideas on what caused it? Is it a random ok thing? Should I look for a clog in the return line? Because of the loud pump, could it have somehow started pumping too hard and created too much pressure too fast for normal relief? Or...?
So any ideas on what caused it? Is it a random ok thing? Should I look for a clog in the return line? Because of the loud pump, could it have somehow started pumping too hard and created too much pressure too fast for normal relief? Or...?