Starting vehicle

1998 FORD EXPEDITION
150,000 MILES • V8 • 4WD • AUTOMATIC
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TSPARKY
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  • 1 POST
98 Expedition 4x4 5.4 - Starting initially cranks but seems like not enough power to turn completely over. Bad Starter? And where is the starter located when facing the vehicle?
Jul 16, 2011 at 4:49 PM
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RASMATAZ
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  • 75,992 POSTS
Cranks but no start condition do below to determine whether it's fuel or spark issue:

Get a helper disconnect a sparkplug wire or 2 and ground it to the engine atleast 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,cap and rotor,distributor pick-up coil, ignition control module, cam and crank sensors and computer Note: If it doesn't apply disregard it and keep testing.
Aug 11, 2011 at 10:44 AM