new to this so here goes my multi has developed a problem its a 105 jtd occasionally stutters when accelarating but has developed a fuel problem when it gets to half a tank you can bet it will just konk out now and again when it does this i turn on the key and the pump primes the system again do this a couple of times till you hear the fuel return in the tank and it will start once the fuel gets to the injectors has anyone had this problem or no how to cure it is there any hoses in the sender unitwhich can let air in