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Old Dec 7, 2003 | 01:43 PM
  #1  
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jimb206
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4WD problem

Yesterday when putting the shift on the fly 4WD **** into 4hi the truck went into 4WD but with a big thump. I drove quite a bit yesterday and the truck ran fine . Today when I put it into 4WD it stayed in 2WD. The 4X4 light doesn't come on and there is no power going to the front wheels. Do you think this is an expensive problem as in taking the drivetrain apart or could it be just the switch or a relay of a fuse? Hoepfully a fuse but some how I doubt it.

Jim
 
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Old Dec 7, 2003 | 06:25 PM
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clean79150
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Big thumps are usually a bad thing. ...ouch

What kind of transmission and transfer case is it, and what year truck?
 
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Old Dec 7, 2003 | 06:59 PM
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78fordman
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From: Jefferson, Iowa
Were you moving when you put it in 4x4? I would check the vaccum pump, otherwise try pulling the codes, see if anything comes up.
 
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Old Dec 7, 2003 | 07:26 PM
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jimb206
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It's a 2000 F350 V 10 4 Speed Auto. I don't know what transfer case it is.

And yes I was moving when I put it in 4WD.

Thanks

JIm
 
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