Car has fuel in the fuel rail and new sparkplugs, but car just cranks and does not start. I think it is the fuel pump but am not sure
May 26, 2008 at 4:55 PM
1998 Ford Mustang Engine not starting
1998 FORD MUSTANG
NGD05
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When you turn key to run-do you hear the fuel pump-if so check fuel pressure and comeback with the readings. If not could be a fuse/fuel pump relay/inertia switch and computer.
Or do below immediately when it acts up
If the engine's condition is in tip top shape-do below to determine if its fuel or spark problem that's if its cranking over and refuses to start
Get a carb cleaner and spray into the carb or the throttle body on an EFI. Did it start and die? If not disconnect a sparkplug wire or 2 and ground it to the engine -have helper crank engine over-do you have a snapping blue spark? If so-you have a fuel problem, check the fuel pressure to rule out the fuel pump/pressure regulator and listen to the injector/s are they pulsing or hook up a noid light.
If both fuel and spark is present-check the valve and ignition timing, this will lead you to problems with compression and valves opening and closing at the wrong time
Or do below immediately when it acts up
If the engine's condition is in tip top shape-do below to determine if its fuel or spark problem that's if its cranking over and refuses to start
Get a carb cleaner and spray into the carb or the throttle body on an EFI. Did it start and die? If not disconnect a sparkplug wire or 2 and ground it to the engine -have helper crank engine over-do you have a snapping blue spark? If so-you have a fuel problem, check the fuel pressure to rule out the fuel pump/pressure regulator and listen to the injector/s are they pulsing or hook up a noid light.
If both fuel and spark is present-check the valve and ignition timing, this will lead you to problems with compression and valves opening and closing at the wrong time
May 26, 2008 at 5:17 PM
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