1999 ranger 4x4 question

[gozz]

I have recently starting having problems with my truck when shifting to 4x4 hi or low using the dash switch. The transfer case is shifting but the hubs are not locking. I imagine I have a vacuum problem but have no idea on how to check this. I am thinking of engaging the hubs maually just to rule out a hub problem--any ideas on this--I have seen that other folks have problems with the pulse vacuum used on this truck to engage and disengage 4wd.... I have a shop manual but I need a vacuum line diagram so I can check the fittings and all to ensure the vacuum is working.

Thanks for your ideas.

 

[Ozwynn]

read this
http://www.therangerstation.com/tech_library/99hubswap.htm

and this

http://www.therangerstation.com/Magazine/Apr04/offroad.htm


see if these help

 

[gozz]

I had actually seen those before, the full time 4wd is not an option--the manual engagement could be, that little switch is nice though--I would like to get it working correctly.

 

[almostclueless]

Good luck with that......it could be either o-ring in either hub, the vacuum lines, the vacuum solenoid, the GEM, or the associated wiring.


I just disconnected the vacuum line between the solenoid and the engine and lock the stock hubs manually.

 

[gozz]

Yeah that might be the best route, looks like a simple task to be able to do it manual. I guess you wouldn't even need to disconnect anything if you went that route. Just get out lock the hub--then you could switch it to 4wd when you needed it.

 

[4LO 4.O]

http://www.therangerstation.com/Magazine/Apr04/offroad.htm


see if these help

I id this about ayear agoe when my hubs started acting up and i have had no problems since then, and i wheel her alot! Its always ready to go, just engage t/c and go.

 

[almostclueless]

The silver area in the center of the cap is a mesh....some folks just take the mesh out and activate the hublocks when they need 4WD

 

[kennykenny]

i have messed with that time and time again, finally was able to get my hands on a set of avm manual locking hubs for about $150...worth their weight in gold in my opinion

 

[gozz]

I removed the plastic ends and am now able to lock the hubs when I want, if that starts getting screwy I will buy some avm hubs....

 

[dangeranger]

get the avm hublocks....bought mine bout a year ago from tellico4x4.com for $110 shipped.... apparently they are harder to come by now though??? try ebay maybe ive heard people found some on there....

they work every time and install in 10 minutes

jd

 

[gozz]

What is involved in the install?

 

[warhawk]

Here is a link for the AVM hubs mentioned above.
http://www.tellico4x4.com/product_info.php/products_id/26509

 

[gozz]

Thanks for the link--there is also a seller on ebay that has them for $99 with $9 shipping--Tellico charges $22 for shipping. If someone has installed these could they comment on the installation--is it simply removing the plastic junk and popping these in or is it a full hub replacement?

 

[kennykenny]

yes the plastic pops off with some jigsaw blades and the new ones push right on...see the tech library for the jigsaw blade trick..

 

[gozz]

I ordered some AVM hubs last week from off of ebay--got them within 2 days. Did the install in about 20 minutes without even taking the wheel off--jig saw blade tip really worked well. These have the name rugged ridge instead of avm--but they are made by avm.