Jeep Grand Cherokee Forum banner
1-1 of 1 Results
  1. Drivetrain Tech Center
    Hey Guys, My 5.9 was doing something strange I hadn't seen before. A couple of weeks ago it started building up air or vapor pressure in the gas tank. Every time I stopped to put gas in it, as soon as I'd depress the flapper valve with the gas nozzle, it would discharge the pressure. I mean...
1-1 of 1 Results