Clunk when I shift into 4 hi - FordTough.ca - Home of Canadian Ford Truck Enthusiasts
 
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post #1 of 7 (permalink) Old 02-02-2009, 08:13 PM Thread Starter
 
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Clunk when I shift into 4 hi

When I shift into 4 hi I get a clunk is it normal? I have a 2004 F150 FX4 screw.
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post #2 of 7 (permalink) Old 02-02-2009, 10:17 PM
 
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Yes and no. If your driving at speed and engage 4hi and hear it then yes it's a problem but if your at a stop and step on the gas a bit before the hubs fully engage then it's not a real issue just keep off the throttle a bit. Also in the cold I notice that the hubs take quite a bit longer to engage so the clunk is easier to produce. also is it more a bang then a clunk.?
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post #3 of 7 (permalink) Old 02-03-2009, 03:59 PM
 
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does it actually go into 4x4?have seen concerns with the front wheel locks vacuum system.


a moments silence for the shelbyx,i hope her new owner enjoys as much.
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post #4 of 7 (permalink) Old 02-03-2009, 11:38 PM Thread Starter
 
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It goes into 4x4 I think it was because I was not moving.
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post #5 of 7 (permalink) Old 02-26-2009, 11:36 PM
 
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Quote:
Originally Posted by Silver FX4 View Post
It goes into 4x4 I think it was because I was not moving.
make no sense, your post does...mmmmmm

"The Dark Knight"
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post #6 of 7 (permalink) Old 02-27-2009, 06:17 AM
 
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If there's still any torque load on your driveline (ie tranny in gear) then yes, its normal. I've never owned an auto shift 4wd setup so I've never used one, but IIRC you can still shift into 4 hi while driving or while in gear so a clunk would be considered normal (small clunk). Anything heavy and very produced could be a sign of a worn t-case of u-joints, or loose driveline components. LR

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post #7 of 7 (permalink) Old 02-28-2009, 03:25 AM
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A clunk is most likely caused by a u joint. Change one, change them all at the same time.
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