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2005-2010 Mustang GT Tech Forum

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Unread 10-24-2010   #1 (permalink)
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Default Won't Start, 2007 Mustang GT

Need some input please. Over the last couple days when starting my 2007 GT I would hear a high pitch whine that would go away after the car started. A couple of times the car wouldn't turn over at first. I would just turn the key off and back on then it would start. After running for short time it didnt seem to have any problems when I stopped and re-started. Sometimes the whine would be there, sometimes not.

I was going to check on it but I waited to long now she wont start at all and just clicks loudly. The whine is still there.

Battery is good (all the lights and everything works). I am not getting any engine error codes.

I am about 300 miles away from home so if im going to start shot-gunning parts I would like some input from anyone that has experience with this. Not sure if the battery just doesn't have enough juice, its the starter or the solenoid.

Any help would be appreciated.

Gary
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Unread 10-24-2010   #2 (permalink)
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I would have the battery and starter checked. Also check the cables for corrosion around the battery posts.
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Unread 10-24-2010   #3 (permalink)
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Generally, if the battery is low on juice, you get the normal engine start up sound just very slow and it turns only once or twice, but not enough to kick over, the lights may dim/go out, but usually no clicking.

The clicking is generally the starter unit, but can also be the solenoid. I forget how to test the solenoid as I usually just throw in a starter when I here the clicking, and have never had to do a solenoid, but you can test it before you swap out parts.


Whine = Loose/worn belt, or maybe coming from the starter, and will go away with a new unit?
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Unread 10-24-2010   #4 (permalink)
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The only thing that comes to my mind when you mention the whining is that it could be a timing problem. If your car jumped time, or the belt/chain broke, it isn't going to start. I hope it's your starter or something minor because a timing issue can be expensive in a shop.
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Unread 10-24-2010   #5 (permalink)
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To clarify, the whine was electronic. As soon as the car started it went away. I only heard it when trying to start the car.

I checked the battery, its clean with no corrosion and wires check good. I am thinking its the solenoid or starter but can't really test them out here so I think i'm going to just replace the whole thing.

Thanks for the input guys. Anymore advice would be great though.
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Unread 10-24-2010   #6 (permalink)
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The whine could be the fuel pump.
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