One problem related to other fuel system tank assembly has been reported for the 2008 Toyota 4Runner. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2008 Toyota 4Runner based on all problems reported for the 2008 4Runner.
Hissing sound like pressure loss from gas refill point and limited ability to use gas pumps due to back pressure that shuts down the pump nozzle. Vehicle was stationary at mobile, speedway and irving stations. None responded to putting fuel in the tank without numerous back pressure shutdowns at the pump.