Answer to: car heats up then stalls. wait 20 minutes and will start again.Twenty minutes is a long time when diagnosing a no start problem. The two critical things to determine when it shuts down are ignition spark and fuel pressure. No spark narrows the problem to the ignition system. No or low fuel pressure narrows it down to pump and fuel lines. No fuel pressure could be an electrical problem, but low pressure is definitely pump or fuel lines. If you hear the pump run when cranking, the electrical problem is eliminated. The diagnostics for either of these problems go in different directions, so it's important to know which. One quick test which eliminates a rare problem: Open the fuel fill cap and try to start. The fuel tank vent is electrically operated. If the vent is closed or stopped up, the pump will run until the vacuum pressure in the tank makes it impossible to maintain pressure.
Answer to: Where is the fuel filter for gas line on a 4x4?It would help to know what model year and manufacturer, when you ask a question like this. A lot of late model cars and trucks, going back to 2003 or so, do not have a serviceable fuel filter. The strainer in the fuel tank is all there is. The real problem with getting water in the fuel is the water is never clean. You also get a lot of rust and dirt along with it. If this is the problem, the only solution is to clean the tank and start over.