I have a problem with my 98 Mitsubishi Montero Sport that no one can seem to solve. It is not getting enough gas shall we say. You can push the gas pedal down and it does about 10 miles an hour down the road. I noticed that the loss of power was a gradual thing. Mechanics have checked everything, cat conv, fuel pump and filter, throttle bore, changed the o ring in the gas line, and even changed the computer. It ran great for about 5 or 10 mins after the computer was changed, then went right back to the same problem. Got really hot too. Any suggestions?

SOURCE: changing brakes mits. monero spt. 4wd 2000

it is easy to change even you can change it your just going to take off the front wheel then you will see the break panel there's a bolt holding the break pad loose it so can pull the break pad out... or more or less even a driveway mechanic can do this for less cost...

SOURCE: Changing transmission filter on Mitsubishi

FIRST YOU HAVE TO UNBOLT THE TRANSMISSION PAN ON THE BOTTOM OF THE TRANSMISSION. THERE WILL BE FLUID IN IT SO BE CAREFUL NO TO SPILL IT. AFTER THE PAN IS OFF YOU WILL SEE THE FILTER ON THE BOTTOM OF THE VALVE BODY. IT MAY BE BOLTED ON AS WELL. HOPE THIS HELPS. LET ME KNOW. GOOD LUCK

SOURCE: 93 mitsubishi diamante, starts runs for 5 mins

Check all of the cables near intake. Make sure all of the sensors are pluged in.  Since if sensors have plugs that are loose than you could have a problem of inconsistent runing. 

SOURCE: 98-Mitsubhi Eclipse - 2.4 SOHC fuel pump issues

You could desrupt pump if try to configure relay module is located inside the fuel reservoir.

SOURCE: I have a 98 Montero Sport with low rpm engine stalls...

spark plug cable is lose or one spark plug is faulty.