1994 Ford Explorer Sport. Have changed the fuel pump and it worked for a couple of months. It quit yesterday, waited 5 minutes and then it started and then 10 minutes later quit again. The next day it started and has been running since. Do you know why it would stop?
Next time it does that do below to determine if its a fuel or spark problem
Get a helper disconnect a sparkplug wire or 2 and ground it to the engine at least 3/16 away from ground -have helper crank engine over-do you have a snapping blue spark? If so-you have a fuel related problem, Do you hear the fuel pump come On when you turn key on? If not check fuel pump fuse and fuel pump relay if so, check the fuel pressure to rule out the fuel filter/fuel pump/pressure regulator and listen to the injector/s are they pulsing or hook up a noid light. No snapping blue spark continue to troubleshoot the ignition system-power input to the coil/coil packs, coil's resistances, distributor pick-up coil, ignition control module, cam and crank sensors and computer Note: If it doesn't apply disregard it.