I'm trying to fix my dad's truck while he is away. we thought that the problem was the fuel injectors, but i wanna replace the fuel filter and see if there is any change before i go and spend a whole lot of money on new injectorsWhere is the fuel filter located on a 1990 ford f-250 truck with a 4.9 liter engine?it is under the drivers side in the frame rail under the cab ...undo the worm clamp ..have the new filter ready to go..with screw drive gently pop out the hairpin clips and remove the filter and replace with new one make sure you put in the clips right..turn key on and off two or three times to repressurize the system and check for leeks..if truck will not strart hold a propane torch in the intake while someone tries to start,if it runs on propane and quits when you turn it off the injector screens might be full of dirt if the filter bypassed it self..mine did and the filter was pack so full of dirt that it looked like river sediment,,i change my filter every fall nowWhere is the fuel filter located on a 1990 ford f-250 truck with a 4.9 liter engine?check in the lines going from the tank to the engine it may be there if not ask someone to look it up at yopur local parts store.
But the fuel pump is probably in the tank and there is a filter called a sock filter on it as well so you may want to try that as wellWhere is the fuel filter located on a 1990 ford f-250 truck with a 4.9 liter engine?probably in the tankEvery time you diagnose a fuel system a fuel gauge is mandatory. You must be able to meassure flow and pressure. No gauge then you are playing the guessing game and it is very expensive.On my Explorer it's underneath in the back of the wheel well on the passenger side. It is a large thing about the size of an oil filter and they usually run about $50.It should be strapped to the inside of the frame rail just in front of the drivers rear tire, if not there trace the fuel lines from the tank to the engine, if it is there you'll find it!
