Hi friends.

Silly questions for awhile until I get a manual.

Rear drivers side, inside, back corner.
I'd think this is where the compressor would be if I had bags but I don't. Springs and shocks.
Looks like climate control. Has a box and fan and looks like refrigerant lines.
Climate for the rear of the cabin?

Also this rig has a shift in the fly(?) 4x4 system?
Is it ESOF? I can't find the solenoid or pump if it is. Any ideas?
Have not looked for any hoses going to the hub yet.

Need a few of you Ford lifers to help me learn a little bit.
I'm capable of fixing most anything but need a little guidance at the moment.

Appreciate your time.

Drew

 

The Expy is not ESOF. It is A4WD (Automatic 4 Wheel Drive). So no Pump or IWEs.
(I'm pretty sure that the 2001 didn't have a 2WD selection on the dial, so no vacuum actuator on the front diff.)


So the front hubs/half shafts/diff and front driveshaft are always interconnected. When the GEM decides it is time to automatically engage A4WD it duty cycles the TOD (Torque On Demand) clutch pack in the transfer case to begin transferring power to the front drive shaft. When the GEM determine that A4WD is no longer need it decreases power to the front end via the TOD clutch pack and you are back in RWD.

 

Alright. Completely makes sense being there is no 2wd.

Any info on what's going on in the back panel?
Has to be climate related.

Appreciate the input.

Just haven't had the time to fully crawl around this beast yet. Know for sure I will be tackling a rear axle seal and bearing here soon.

 

Yes, if equipped.

 

You can get owners manuals on Ford's fleet services web site. Just google it. That won't help if you are looking for shop manuals, but it is a start.

 

Thanks! Really appreciate it.

 

Owners manuals here:

https://owner.ford.com/tools/account...r-manuals.html

Factory service manuals here:

http://www.ebay.com/itm/171688203055?_trksid=p2055119.m1438.l2649&ssPageName=STRK%3AMEBIDX%3AIT

 

Correct, it is the rear HVAC system. I just visited the local salvage yard yesterday seeking a stock lug wrench and ended up crawling through every 97-03 F150 and Expedition/Navigator they had. All but one Expy/Navi were equipped with the 3rd row seat and rear HVAC system. The one that was not had an inside trim panel exactly like the passenger side minus the jack storage cavity and door. FWIW, mine has the system too.