Go Back   Dodge Diesel - Diesel Truck Resource Forums > 1st and 2nd Generation Ram - Years 1989-2002 > 12 Valve Engine and Drivetrain
Register FAQ DTR Store Members List Mark Forums Read


Reply
 
Thread Tools Display Modes
Old 11-20-2009, 10:17 PM   #1
coloblacksmoke
Registered User
 
Join Date: Jul 2009
Posts: 14
4WD Enguagement Problems

So, typical problem xcept mine pops in and out. I took it out and inspected it(CAD) and all is good. I have replaced most of the upper hoses and the two that come from the CAD. It looks like there is some oil in the lines also.I have around 25 lbs. of vaccume just after the pump. Maybe the lines on top of the Tranny?
__________________
95 ext cab long bed 4x4 slt lariet, 5spd leveling kit ultra wheels(205,000mi. paid $3300 for it)
coloblacksmoke is offline   Reply With Quote
Old 11-21-2009, 02:04 AM   #2
Digital Bullet
Registered User
 
Digital Bullet's Avatar
 
Join Date: Jun 2006
Location: Youngstown, OH
Posts: 1,295
Send a message via ICQ to Digital Bullet Send a message via AIM to Digital Bullet
Quote:
Originally Posted by coloblacksmoke View Post
So, typical problem xcept mine pops in and out. I took it out and inspected it(CAD) and all is good. I have replaced most of the upper hoses and the two that come from the CAD. It looks like there is some oil in the lines also.I have around 25 lbs. of vaccume just after the pump. Maybe the lines on top of the Tranny?
I bet its the plug that goes in the top of the transfer case.
__________________
1997 Ram SLT 2500 12 Valve 4X4 Ext. Cab LB
3.54 Gearing (LSD)
NV4500 HD (Updated 5th Gear Nut 4-9-08)
Silencer Ring Missing
KDP Fixed (7-5-06)
Dual Red Top Optimas
MKO Performance 5" Straight Exhaust (4" Down Pipe into 5")
MBRP 6" Tip
AutoMeter Ultra Lite Pyrometer and Boost Gauges
TST #10 Power Kit (Stock Position)
AFE Stage 1 Type EZ With Pro-Dry S Filter
Timing Advanced to 15.5*
South Bend Con OFE

HELP EASE THE PAIN OF SERVER FEES HERE AT DTR - PLEASE CONTRIBUTE
Digital Bullet is offline   Reply With Quote
Old 11-23-2009, 08:37 PM   #3
coloblacksmoke
Registered User
 
Join Date: Jul 2009
Posts: 14
Quote:
Originally Posted by Digital Bullet View Post
I bet its the plug that goes in the top of the transfer case.
So does this plug start leaking? I also found a green vacume line that runs up above the starter but it wasnt hooked up so I plugged it. 4WD works a little better but still pops out?
coloblacksmoke is offline   Reply With Quote
Old 11-24-2009, 12:48 AM   #4
rebal
Registered User
 
rebal's Avatar
 
Join Date: Jan 2005
Location: Yuba city CA,
Posts: 2,414
Send a message via Yahoo to rebal
check the rubber connections on the vac line common spot is at the transfer case .oil gets on them and they get mushy and they don't seal tight any more any movement makes the transfer case kick out also the plastic tubing can crack
__________________
1990 W250 bought new in Nov. 89 performance built 727 and torque converter , high miler 700 k heavly bombed kelderman air ride

2001 2500 HO 6spd 4x4, Engine brake , mad.ecm mach1.6s fass,SBC 4" turbo back exhaust BHAF fluid damper,ARP head studs, DSS, Fast cools.snow w/m, wife says trucks fast enough:( 335 hp/800 tq)

How many of your rights are you willing to give up before you feel totally safe ?Wake Up People vote EVERYONE OF THE BUMS OUT OF OFFICE!
rebal is offline   Reply With Quote
Old 11-24-2009, 07:30 PM   #5
waldersha
Registered User
 
Join Date: Jun 2005
Location: Kansas
Posts: 383
When you had the CAD out did you take a look at the ends of the intermediate shaft? When they aren't being held in tight they can slope the end of that shaft off and it won't hold no matter what. That's one reason I went to the Posi-lok, didn't want to have to worry about it anymore.
__________________
My Truck:
1996 2500 4x4 5-speed K&N Filter and Straight Pipe, Silencer Ring Removed, AFC modified, 201K
4x4 posi-lok (best money spent), power window mod

Wife's
05 Jetta TDI
waldersha is offline   Reply With Quote
Old 11-25-2009, 10:29 PM   #6
coloblacksmoke
Registered User
 
Join Date: Jul 2009
Posts: 14
So I started off by splicing a tee into the vac.line and running a hose strait to the engage side of the CAD, started truck and yep 4WD is engaged. Next I found out online that the green vac. line is a vent, so I took my plug out and put the vent back in. So next I put new vac. line from the hard line to the rubber boot(plug) and nothing, so I put my vac pump on the steel line that goes to the engage side of the CAD that's on the frame, I started the truck and pushed over on the boot and got vac. I don't know when I can get a boot so I took it out and hooked the rubber vac. hose directly to the plastic nipples and the 4WD works great. Later Rocky
coloblacksmoke is offline   Reply With Quote
Old 11-26-2009, 11:33 PM   #7
coloblacksmoke
Registered User
 
Join Date: Jul 2009
Posts: 14
Quote:
Originally Posted by coloblacksmoke View Post
So I started off by splicing a tee into the vac.line and running a hose strait to the engage side of the CAD, started truck and yep 4WD is engaged. Next I found out online that the green vac. line is a vent, so I took my plug out and put the vent back in. So next I put new vac. line from the hard line to the rubber boot(plug) and nothing, so I put my vac pump on the steel line that goes to the engage side of the CAD that's on the frame, I started the truck and pushed over on the boot and got vac. I don't know when I can get a boot so I took it out and hooked the rubber vac. hose directly to the plastic nipples and the 4WD works great. Later Rocky
Well that didn't work. So I took and run a vac. hose strait to the engage side of the CAD and it still pops out so now i'll pull the CAD and inspect it and the shafts again.
coloblacksmoke is offline   Reply With Quote
Old 11-27-2009, 10:23 AM   #8
infidel
Registered User
 
Join Date: Dec 2003
Location: Montana
Posts: 11,896
Homemade Posi-Loc might be cheaper and longer lasting than fixing the CAD.
Instructions> http://www.jeepforum.com/forum/showthread.php?t=595515
__________________
Bill
'95 2500 4x4 auto
'95 3500 5 speed flatbed hauler
stock for one day
infidel is offline   Reply With Quote
Old 11-27-2009, 10:39 AM   #9
97_Dually
Registered User
 
Join Date: Aug 2009
Location: VA
Posts: 37
Thats a cool idea; I check out that Jeep forum a lot. (I have a 91 cherokee).
Thanks for the post, my 4x4 quit working also, but now we're in the middle of the engine swap.
__________________
.... Billy

1997 Dodge 3500, 12v, 5 sp, ext cab, 4x4, KDP Killed, South Bend Con-O, Westach FP, Boost, and Pyro gauges, BHAF Amsoil 4090
97_Dually is offline   Reply With Quote
Old 11-27-2009, 09:42 PM   #10
coloblacksmoke
Registered User
 
Join Date: Jul 2009
Posts: 14
Quote:
Originally Posted by infidel View Post
Homemade Posi-Loc might be cheaper and longer lasting than fixing the CAD.
Instructions> http://www.jeepforum.com/forum/showthread.php?t=595515
Until I can get parts rounded up, I took the broken (busted shaft) cad off my spare Ft.end and gutted it. I then cut a 5in. piece of allthread and put a nylok nut on one end with washer slide in
hole and add washers till the fork is tight then put nylok nut on other end making sure the fork is in what would be in the engage position throw some silicon in the holes and tighten nuts, engage coupler and bolt back up. Don't forget to plug both vac. lines and tape up the plug for the 4WD. Guaranteed 4WD.Since I only drive 3 blocks to work and maybe 60mi. round trip on the weekend to go snowmobiling It should be alright till a perminant fix.
coloblacksmoke is offline   Reply With Quote
Old 11-27-2009, 11:10 PM   #11
joelayan
Registered User
 
Join Date: Feb 2006
Location: Albuquerque, NM
Posts: 130
The green vac line is supposed to vent to atmosphere to vent vacuum when things are being disengaged.

Joel
__________________
96 2500 4x4 Extended Cab LB w/ 187k miles
3.54 w/ 285's
Gauges (Boost/Pyro/Trans), Goerends w/ Triple, #10 plate, free gsk, blocked wastegate, Timing @ 15.5, 4" AFE exhaust.
joelayan is online now   Reply With Quote
Reply


Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

vB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Forum Jump



All times are GMT -5. The time now is 10:18 PM.


Powered by vBulletin® Version 3.6.7
Copyright ©2000 - 2010, Jelsoft Enterprises Ltd.
vB.Sponsors
Copyright 2003, DieselTruckResource.Com