One problem related to delivery fuel pump has been reported for the 1999 Toyota 4Runner. The most recently reported issues are listed below.
While driving on the freeway at 65 mph vehicle suddenly sputtered and stalled. Consumer's vehicle was almost rear ended by another vehicle in the oncoming traffic, but consumer was able to pull off the freeway. Dealership indicated the failure was due to a faulty sending unit in the fuel tank. It was reading full when the tank was empty. The old style sending unit was obsolete and not available.