Go Back   Jeep Garage - Jeep Forum > Jeep Platform Discussion > Grand Cherokee - WJ > Troubleshooting/Problems

Join Jeep Garage Today
Reply
 
Thread Tools Display Modes
 
  #13  
Old 06-16-2014, 09:06 PM
Frango100's Avatar
Premium Member

My Jeep: 2004 4.7L WJ
 
Join Date: Dec 2009
Location: Brazil
Posts: 4,917
Thanks: 9
Thanked 92 Times in 87 Posts
Rep Power: 525870
Frango100 has a reputation beyond reputeFrango100 has a reputation beyond reputeFrango100 has a reputation beyond reputeFrango100 has a reputation beyond reputeFrango100 has a reputation beyond reputeFrango100 has a reputation beyond reputeFrango100 has a reputation beyond reputeFrango100 has a reputation beyond reputeFrango100 has a reputation beyond reputeFrango100 has a reputation beyond reputeFrango100 has a reputation beyond repute
Re: Strange Overdrive Issue for 2004 4.7 WJ, No code

It seems that somewhere in 2004 the TCM was integrated into the PCM, but it has nothing to do with 45RFE or 5-45RFE.
My 2004 WG still has the separate TCM. See attached page from the FSM.
Attached Files
File Type: pdf TCM.pdf (82.5 KB, 1 views)
__________________

__________________
Frank

JEEP Grand Cherokee 4.7 Lmtd 2004
HID 8000K in low and fog / Quad Squad member
KYB Gas-a-Just shocks / Pirelli Scorpion ATR 245/65/17 - Transgo reprogramming shiftkit.

VW Beetle 2.0 TSI 2013
My new toy
Reply With Quote
  #14  
Old 06-17-2014, 06:32 PM
Member
 
Join Date: Jun 2014
Posts: 9
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 119
Anewlevel0419 is on a distinguished road
Re: Strange Overdrive Issue for 2004 4.7 WJ, No code

Thanks. I found that manual, and on page 329, a little ways down from what you sent me, it says that after replacing the solenoid pack, the tcm quick learn procedure should be done. Did you do this after you replaced your solenoid? I'm really leaning towards this being a confused computer problem. Is the quick learn something that a dealer should do?

Thanks,
__________________

__________________
Reply With Quote
  #15  
Old 06-17-2014, 07:45 PM
Frango100's Avatar
Premium Member

My Jeep: 2004 4.7L WJ
 
Join Date: Dec 2009
Location: Brazil
Posts: 4,917
Thanks: 9
Thanked 92 Times in 87 Posts
Rep Power: 525870
Frango100 has a reputation beyond reputeFrango100 has a reputation beyond reputeFrango100 has a reputation beyond reputeFrango100 has a reputation beyond reputeFrango100 has a reputation beyond reputeFrango100 has a reputation beyond reputeFrango100 has a reputation beyond reputeFrango100 has a reputation beyond reputeFrango100 has a reputation beyond reputeFrango100 has a reputation beyond reputeFrango100 has a reputation beyond repute
Re: Strange Overdrive Issue for 2004 4.7 WJ, No code

No, i didn't do this after the solenoid replacement. During quick learn the TCM memory will be set back to factory specs. This is regarding the CVI's, the clutch volume index. The TCM adjust these figures depending on the wear of the clutch packs. A certain time is needed to apply each clutch. The TCM calculates this figure and uses it to know when clutches must be pressurized. Clutch wear will increase the CVI for each clutch. So doing the quick learn will reset the CVI's to factory specs. Then the TCM will adjust these figures to the actual situation. Since there should be no change in the CVI's, the quick learn should not be necessary. I know its mentioned in the FSM, don't know why.
Wrong CVI's normally result in a too quick application of the respective clutch, which makes the shift harsh.
Stealer or transmission shop could do the quick learn, a DRBIII scanner is needed for this, but i wonder if it would do any good to you.
__________________
Frank

JEEP Grand Cherokee 4.7 Lmtd 2004
HID 8000K in low and fog / Quad Squad member
KYB Gas-a-Just shocks / Pirelli Scorpion ATR 245/65/17 - Transgo reprogramming shiftkit.

VW Beetle 2.0 TSI 2013
My new toy
Reply With Quote
  #16  
Old 06-27-2014, 11:52 AM
Member
 
Join Date: Jun 2014
Posts: 9
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 119
Anewlevel0419 is on a distinguished road
Re: Strange Overdrive Issue for 2004 4.7 WJ, No code

I'm back. I haven't touched my Jeep, and it seems that some more problems are starting to form. When I put my Jeep into D, there is a small hesitation then it jumps into gear. I'm still having the no 5th gear shift issue. It seems that something is off with the solenoid I put in. Last night in particular, the solenoid was buzzing quite a bit as it was shifting gears. I'm going to let my car sit with both terminals off over the night to reset the computer. Maybe that will clear some deep code issues. If it doesn't help, I will take off the solenoid and try to put the detent plate on. I'll inspect the solenoid at that time, make sure everything looks good without opening up the valve body. Thoughts?
__________________
Reply With Quote
  #17  
Old 06-27-2014, 08:13 PM
Frango100's Avatar
Premium Member

My Jeep: 2004 4.7L WJ
 
Join Date: Dec 2009
Location: Brazil
Posts: 4,917
Thanks: 9
Thanked 92 Times in 87 Posts
Rep Power: 525870
Frango100 has a reputation beyond reputeFrango100 has a reputation beyond reputeFrango100 has a reputation beyond reputeFrango100 has a reputation beyond reputeFrango100 has a reputation beyond reputeFrango100 has a reputation beyond reputeFrango100 has a reputation beyond reputeFrango100 has a reputation beyond reputeFrango100 has a reputation beyond reputeFrango100 has a reputation beyond reputeFrango100 has a reputation beyond repute
Re: Strange Overdrive Issue for 2004 4.7 WJ, No code

Does the hessitation to go into gear happens every time you put it in D, or only at first startup? There is a drainback issue known, where the fluid from the torque converter drains back to the pan. After many hours off, quite some fluid has been drained and it will take several seconds to fill the converter up again at next startup. The converter is a fluid coupling and it will only work when its full with fluid. If you would decide to remove the solenoid block again, have then a very good look at the gasket plate. The small seal beads can break easilly and cause the fluid to flow to an other canal and eventually actuate an other clutch.
__________________
Frank

JEEP Grand Cherokee 4.7 Lmtd 2004
HID 8000K in low and fog / Quad Squad member
KYB Gas-a-Just shocks / Pirelli Scorpion ATR 245/65/17 - Transgo reprogramming shiftkit.

VW Beetle 2.0 TSI 2013
My new toy
Reply With Quote
  #18  
Old 07-08-2014, 07:55 AM
Member
 
Join Date: Jun 2014
Posts: 9
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 119
Anewlevel0419 is on a distinguished road
Re: Strange Overdrive Issue for 2004 4.7 WJ, No code

Thank you for all the advice. I will get to it when I can. I live in a place where the fastest speed limit is 45 so driving around without a 5th gear isn't the end of the world.

On another beat,

I'm looking to replace my rotors, calipers and pads. Any suggestions?
__________________
Reply With Quote
  #19  
Old 07-08-2014, 09:30 AM
Frango100's Avatar
Premium Member

My Jeep: 2004 4.7L WJ
 
Join Date: Dec 2009
Location: Brazil
Posts: 4,917
Thanks: 9
Thanked 92 Times in 87 Posts
Rep Power: 525870
Frango100 has a reputation beyond reputeFrango100 has a reputation beyond reputeFrango100 has a reputation beyond reputeFrango100 has a reputation beyond reputeFrango100 has a reputation beyond reputeFrango100 has a reputation beyond reputeFrango100 has a reputation beyond reputeFrango100 has a reputation beyond reputeFrango100 has a reputation beyond reputeFrango100 has a reputation beyond reputeFrango100 has a reputation beyond repute
Re: Strange Overdrive Issue for 2004 4.7 WJ, No code

For which reason do you want to replace the calipers? The 2004 model already comes with the Akebono calipers, which normally perform well. Do you want to upgrade to something better? Im not that familiar with what is available, but hear others putting drilled rotors on.
__________________

__________________
Frank

JEEP Grand Cherokee 4.7 Lmtd 2004
HID 8000K in low and fog / Quad Squad member
KYB Gas-a-Just shocks / Pirelli Scorpion ATR 245/65/17 - Transgo reprogramming shiftkit.

VW Beetle 2.0 TSI 2013
My new toy
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

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
strange steering column, brake pedal issue Smooth1 Trouble Shooting/Problems/Service 5 02-08-2012 03:43 PM
strange electrical issue, no lights on driver side rear mrmotoguzzi00 Troubleshooting/Problems 9 01-26-2012 08:13 PM
Strange issue - Jeep running without key kevin06vino Grand Cherokee - WK 7 10-27-2011 03:22 PM
Strange tire issue Overboostin Suspension/Brakes/Wheels/Tires 0 06-17-2011 12:35 AM
Strange Issue with Instrument lights and 430N restarts on it own. singhgill Audio/Visual/Navigation 12 02-10-2011 06:59 PM

Powered by vBadvanced CMPS v3.2.3

All times are GMT -5. The time now is 12:50 PM.


Powered by vBulletin® Version 3.8.8 Beta 4
Copyright ©2000 - 2014, vBulletin Solutions, Inc.
Copyright 2012 - JeepGarage.Org
The Jeep Grand Cherokee Owners Community