4x4 not working

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Mar 16, 2009 | 10:31 AM

jasonch

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4x4 not working

on my 02 f250 the 4wd seems to have went out. the switch is good, i put it in my 99 and it worked, put a new actuator on it b/c i knew it was bad. the light does not even come on on the dash, what else could it be?

Mar 16, 2009 | 10:43 AM

shacks87

Mountain Pass

Joined: Feb 2008

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From: Rock Hill,SC

Chack the fuse, are the hubs locked ?

Mar 16, 2009 | 10:52 AM

superduty4x4

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Joined: Jul 2003

Posts: 12,177

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From: Newport, WA

Burned out light in the dash? Throw the switch, then get out and try to turn the front driveshaft by hand. If it doesn't turn your 4x4 works.

Mar 16, 2009 | 10:57 AM

just another truck

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Joined: Feb 2007

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From: Sterling Heights,Mi

Fuse??

Did you check for voltage at the connector on the Transfercase

Mar 16, 2009 | 11:50 AM

jasonch

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i can hear the actuator clicking, what about vacuum lines? not sure really. i can turn the hubs in and put it in 4wd, i know its not working, the front tires are not pulling so i know its not the dash light. fuse is good.

Mar 16, 2009 | 12:02 PM

just another truck

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Joined: Feb 2007

Posts: 10,499

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From: Sterling Heights,Mi

Please make sure your hubs are unlocked, then select 4 wheel high, have someone move the truck forward and look at the front driveshaft.
If you believe it is just the hubs, engage them manually ans seewhat happens, if it works then, Turn your floor vent on, engage your 4 wheel drive, if the vent changes to defrost, you have a vacuum leak.