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The Ford Expedition is a full-size SUV assembled by the American automaker Ford Motor Company. Introduced as the four-door successor of the two-door Ford Bronco, the Expedition has remained in production since the 1997 model year; it is currently in its third model generation.

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No crank no start issue

Hi everybody, hope everyone having a great day. I need some directions on go about trouble shooting my ford expedition 2003. I went to pick up my son from school last year, while I was waiting, I turn the engine off thinking nothing was wrong. After my son was buckle in, I turn the key to start the car. It crank and came on, only for 2 seconds, then it went dead. I thought must be drain battery, so we walk home from there, I came back with the battery jumper and it did not help. I car remain dead. All lights and signal still shine bright, no anti theft flashes check engine light on and car would not crank or start. So I hammer the starter and tried to listen for fuel pump. Nothing… no changes so I ended up towing it home where I remain working on it. I check sensors, I’ve change alternator and check starter, everything look ok. Finally I had a chance to check the wiring from battery to ground and positive wiring also. I even change the fuse box hoping that be enough. Still nothing. Unplug pcm and plug harness back in one at a time. The first one went in, no change, second one went half way in and I got starter to crank but still no fuel pump. Third harnest got same result. So I jump fuel pump relay and crank the car. Still doesn’t kick on. Now I don’t know what else to do. I’m lost and about to give up on the car but that’s my only transportation. So if anyone out there who has same problems or know how or what to do, please shared your thoughts and help me out. I can’t afford to take it to the shop, I barely making end meets… so I appreciate everyone for their time and efforts. Someday good will come to those who help others… thank you

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Did you ever figure out what was wrong because this is exactly what we are dealing with right now

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Hi @cudang

Here's the starter motor wiring diagram that may help.

Block Image

(click on image)

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3 Yorum:

replace: the right size battery - alternator with chip - starter -all new fuses and relays check motherboard under the fuses -- new ignition switch - new neutral park switch. turn key gages move bells come on but no crank & start i can hear the relays in the fuse box. what am i missing

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@mike4850073

Use a test lamp or a voltmeter to prove that the wiring between all the components in the starter motor circuit is OK

For example:

If the starter relay operates check there is 12V on the yellow/light blue wire at the starter motor.

If OK check the earth on the starter motor is OK.

If they're both OK the solenoid should click and it should connect the battery directly to the starter motor and it should crank the motor

If no voltage at the starter motor yellow/light blue wire, check fuse 101 for voltage. If that is OK check for voltage on pin 30 of the starter relay etc

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Did you check the neutral safety switch to make sure it's in the park try putting it in neutral and then try starting it again see if th

at works there's a shot in the dark

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