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2000 expedition starter engaging on its own

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Old Feb 19, 2013 | 04:38 PM
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2000 expedition starter engaging on its own

after starting the truck at times the the starter will engage then disengage we've replaced the starter, silenoid, and ignition switch still does it. any ideas?
 
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Old Feb 19, 2013 | 08:11 PM
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Do you mean to say that while the engine is running, the starter will just power up and engage the engine all on it's own?
 
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Old Feb 19, 2013 | 09:16 PM
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Originally Posted by alloro
Do you mean to say that while the engine is running, the starter will just power up and engage the engine all on it's own?
Yes that's exactly what's happening. The truck will be running, and the starter will re-engage itself and attempt to start the truck again. It sounds just like when you turn the key to start the vehicle when it's already running, except no one is turning the key, it's engaging on it's own.

Sorry for the misspellings in previous post. My husband was on my account
 
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Old Feb 20, 2013 | 05:31 AM
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Is this truck equipped with any remote starter?
 
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Old Feb 20, 2013 | 05:57 AM
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Originally Posted by projectSHO89
Is this truck equipped with any remote starter?
Nope. No remote starter.
 
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Old Feb 20, 2013 | 07:37 AM
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How about the history of the problem?
 
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Old Feb 20, 2013 | 09:49 AM
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Originally Posted by projectSHO89
How about the history of the problem?
No real history of it. It had never done it before until Sunday 2/10. Went to start it for church and that's when the problem started. It had never happened before.
 
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Old Feb 20, 2013 | 10:40 AM
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Replace the starter relay, the return spring inside probably broke. I've attached the starter wiring diagram and the relay location page. The relay is just below the #5 in the top row.
 
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Starter Circuit 2000.pdf (20.3 KB, 519 views)
File Type: pdf
Starter Relay Location.pdf (45.1 KB, 756 views)
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Old Feb 20, 2013 | 10:44 AM
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Originally Posted by alloro
Replace the starter relay, the return spring inside probably broke. I've attached the starter wiring diagram and the relay location page. The relay is just below the #5 in the top row.
Thanks! I guess that will be today's project. Hopefully I can get it done before the ice storm hits tonight. Really don't like not having my 4 wheel drive in ice.
 
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Old Feb 20, 2013 | 02:52 PM
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alloro, I am having same problem, is that the solenoid looking thing on the firewall?
I actually am in the process of replacing all devices in starting circuit, starter, battery cable, battery, ect..
 
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Old Feb 20, 2013 | 05:34 PM
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There is no solenoid on the firewall, it's a relay.

Starter relay looks like this:




The solenoid is on top of the starter motor. Even auto parts houses and sellers get it wrong.
 
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Old Feb 20, 2013 | 05:50 PM
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Originally Posted by projectSHO89
There is no solenoid on the firewall, it's a relay.

Starter relay looks like this:




The solenoid is on top of the starter motor. Even auto parts houses and sellers get it wrong.
I thought that was a solenoid. That has been changed. We have that same one on both Ford trucks so I switched them out thinking that may be the issue. It is doing the same thing with either one in, but the F-150 is not doing it at all regardless of which one is in it. Since we know it's not that, what else could it be??
 
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Old Feb 20, 2013 | 07:09 PM
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Thats it, Thanks, Just changed starter, relay and cable. Your right that bolt up top is a BITCH!!!!
 
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Old Feb 20, 2013 | 07:34 PM
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I had this same problem a few years back. I was inside the house and heard a vehicle trying to start. I went outside and it was MINE. After I cut the battery cable it finally stopped. So I replaced the cable and I found out that the battery had a short and that was the cause of the problem
 
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Old Feb 20, 2013 | 08:55 PM
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There is absolutely no way a "battery had a short" could cause this problem. If a battery were indeed shorted, you'd have a whole different set of problems ranging from a dead battery to smoke and fire.
 
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