03 Excursion 4wd Won't Engage

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Apr 14, 2008 | 08:48 PM

drwindmill

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Joined: Mar 2008

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03 Excursion 4wd Won't Engage

Quick question for you experts, first of all I wasn't sure if this post should be here or in the Excursion section. Anyway, I have an 03 Diesel-Excursion and my 4wd will not engage. I then went to the lockouts and the one on the passenger side turns freely, but the driver's side locker will not turn. Could this possibly be the problem, maybe switch is in the middle? Or would the automatic still work?? Thanks any help would be appreciated...

Thanks

Pat

Apr 14, 2008 | 10:39 PM

brickie

Cargo Master

Joined: Mar 2007

Posts: 3,103

Likes: 32

From: AB/BC

Did you try lube?

Apr 14, 2008 | 10:57 PM

drwindmill

Thread Starter

Freshman User

Joined: Mar 2008

Posts: 27

Likes: 0

I haven't tried any lube. I am just wondering if that would have anything to do with not engaging with the switch.

Apr 14, 2008 | 11:34 PM

brickie

Cargo Master

Joined: Mar 2007

Posts: 3,103

Likes: 32

From: AB/BC

Sorry. I was thinking that the transfer case was locked and the hubs were stuck.

Apr 14, 2008 | 11:58 PM

Technitom

Tuned

Joined: Jun 2004

Posts: 275

Likes: 9

From: San Antonio

if it wont engage with the switch... they are vacume controlled, check the pump on the pass. side fender under hood, look for a vacume leak... a dead giveaway is if you hear it start running and wont stop or runs for a long time (Buzz sound)

look under both fenders and find rubber tubing running to vac port, its usually clipped with brake line... they dry rot and split...

as far as the manual hub switch, they will freeze up if you dont work them every couple months...
if you jack that side up and remove the tire you will see 2 metal tabs sticking out, thats the locking ring, get some pliers, squeeze and remove the ring, the hub should slide right out.... try woking it by hand, you may have to grab a can of WD40 and hose it down...

here's a good link to read before you start

https://www.ford-trucks.com/forums/6...king-hubs.html

this is guzzle's site....
EXTREMELY VALUABLE!!! RECOMMEND YOU SAVE IN FAVORITES!!!

Welcome to guzzle's Ford PSD Web Page

THIS IS DIRECT LINK TO HUB LUBE---STEP BY STEP---W/ PICS

Welcome to guzzle's 4x4 Autolock Hub Lubrication Maintenance Web Page