Starting problem think it is fuel filter but not sure have blown filter out twice but problem keeps occuring would it be the pump? once it starts it runs well. Its a mitsubishi triton dual cab ute mk 2003 petrol v6

Thanks for choosing FixYa and welcome to the site. Listen to hear if you can hear the fuel pump kicking on when you first turn the key. You should hear a humming sound for a second or two. If you do, it is working, If not, it is not working. If so, check your fuel pump fuse, relay, and shut off button if you have one. It could also be bad fuel injectors. You can pour fuel into the intake, if it starts, you have a fuel issue. If it doesn't, it shouldn't be fuel related then. If these all check out, if you don't have inside power, it is a connection problem with the battery or a bad battery. If you have power and there is a clicking sound, clean the battery terminals and post, check the connection. Make sure the battery is good. If you turn the key and there is nothing, you have a bad starter or starter solenoid. Check your ignition fuse also. If the starter is not getting the correct amount of power from the battery, it won't start. Make sure the alternator isn't draining the battery as well.