If you indeed have no oil pressure, then the oil pump is probably bad. But saying that, are you sure you have no pressure? The oil pressure sending unit can be bad or disconnected. Also the pressure gage can be bad. An oil pressure test will verify if you indeed have no pressure. Not sure of the engine size but I know on a 2.3l the timing belt can be suspect to although rare if the engine is running ok, and if there is truly no oil pressure you should hear the lifters banging/ and or bottom end knock.
How do u fix a misfire
Trouble code P1409 means: EGR Vacuum Regulator Solenoid Circuit
How do you fix an airlock in a 2002 ford explorer gas tank.
were is the vocuum hose at on a 91 ford ranger at on 91 ford ranger xlt 4x4 4.0
change it
change the thermostat
You get somebody else to do it.
is it the push rod you are talking about? there is more then one rod. ether way it will be over $1,000
Trouble code P0171 means: Fuel System Too Lean (Cylinder Bank 1)
by a new one
you have to go to the car fix to remove it
You don't fix it, you just replace it.