Question about Ford Expedition
Hello, This problem can be either the starter Relay or the Ignition switch. There should be a small wire on the starter Relay. Disconnect this wire, its nickname is the "Tickler" and then reconnect the Battery. If the Battery arcs and the starter spins, then the internal parts of the starter Relay are fried. You need a new starter Relay. The Relay should need to get a signal from the "Tickler" to work.
If the starter does not turn when you reconnect the battery, you need to test the "Tickler" wire for power. Use a testlight or a Voltmeter and see if the wire has power and do not move the Ignition switch from the position when it was messing up. There should not be power in this wire. If there is power there, then the Ignition switch is messed up. If this is a newer car or truck; one of the Interlock switches at the top of the Brake lever under the dash can be crushed or out of position. If this is a stick-shift, there can be an Interlock contact on the clutch pedal lever.
Most of the time the Interlocks will be cutout switches, the Pos+ power is originating from somewhere else like the Ignition switch. But sometimes the Pos+ and Neg wires can both be in the Interlock and when the Interlock breaks, the wrong wires connect. So before taking apart the plastic cover on the steering column to get at the Ignition switch, make sure the Interlocks are not broken.
I hope my solution is very helpful in solving the problem.
Posted on Apr 02, 2011
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Posted on Jan 02, 2017
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