2005 ford Expediton car problem

I have a 2005 ford expedition limited sometimes it will not crank and all the power works i checked the battery and it's fine but i have to go under the car and wigle at this wire next to the starter and when i do it cranks now i'm trying to wiggle the wire under the starter and it will not crank what do i need to do i really don't wanna get a new starter the check engine light is off it's a good car but i want it to run all the time

It sounds like you need to crawl under it and tighten all the wires on the starter. You may have already burnt out the solenoid by leaving the wires lose.

Get a wrench and tighten the nuts on the two terminals where the wires connect to the starter solenoid. Still no cranking, get a jumper wire, connect one end to the S terminal (the terminal with the smaller wire connected) and with key ON, briefly connect the other end to the positive terminal of the battery. If the car cranks, the smaller wire needs to be replaced or repaired.

Still no crank, get a jumper cable (the ones used to jump a car), connect one end to the terminal with the big cable and connect the other end to the positive terminal of the battery. With key ON, again briefly connect the smaller jumper wire to the positive terminal of the battery. If the car cranks, the bigger cable needs to be replaced. Still no crank, the starter has likely failed.

Repair the wiring

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