AW4 trans issue - Jeep Cherokee Forum
Jeep Cherokee Forum

Go Back   Jeep Cherokee Forum > Technical Discussion > OEM Cherokee Tech
Log In 
Search


AW4 trans issue

Reply
 
 
 
 
Thread Tools Search this Thread
Old 10-29-2009, 12:43 PM   #1
Senior Member
 
RENIXBEAST's Avatar
 
Join Date: Aug 2009
Location: Effingham, N.H.
Posts: 958

View RENIXBEAST's Photo Album My Photos
1989 Cherokee
Default AW4 trans issue

89 4.0 renix AW4, It shifts really quickly and won't downshift. Tried adjusting kickdown cable but no help. Also did flush and filter change. If I put it in first it will hold first till redline then shift. If i put it in drive it will quick shift through all gears in less than 100 feet. shifts at like 1500-2000 RPM's
__________________
SCRAPYARD SURVIVOR
Just Empty Every Pocket
Just Enough Essential Parts
1989 Cherokee Pioneer, 4.0, AW4, Around 5.5"s- 3.5" RE SF, 2" poly spacers, 2" shackles, HP-D30/C8.25, 33/12.5/15, front hitch, S.Y.E.
RENIXBEAST is offline   Reply With Quote
Join Cherokee Forum

Join CherokeeForum.com Today - It's Totally Free!

Do you love your Jeep? If so we invite you to join our community and see what it has to offer. Our site is specifically designed for you and it's a great place for Jeep Fans to meet online.
Once you join you'll be able to post messages, upload pictures of your jeep, and have a great time with other Jeep Cherokee fans.. Whether your an old timer or just bought your Jeep you'll find that CherokeeForum.com is a great community to join. Best of all it's totally free!

Join CherokeeForum.com Today! - Click Here JOIN FOR FREE


-->
Old 10-29-2009, 12:47 PM   #2
CF Veteran
 
BuckB91XJ's Avatar
 
Join Date: Nov 2008
Location: Oak Harbor, WA.
Posts: 6,985

View BuckB91XJ's Photo Album My Photos
1987 Cherokee
Default

Does your XJ have the "power/comfort switch"? The reason I ask is my XJ does the same thing yours does if I keep the switch in the Comfort position. If I keep it in the Power postion all the time it shifts perfectly. My tranny actually feels like it slips between gears if in the Comfort position. So, I have literally driven it in the Power position for the last 2 years and it runs fine and still gets 18 mpg on the highway.
__________________
Brian "Buck" Buchanan, U.S. Navy Chief Petty Officer (RETIRED) - 87 XJ Laredo, Ol' Red - 8.5" Rusty's Offroad/Rough Country lift, D30 trussed and D44 high clearance shock mounts, 4.56's, Aussies, Chromos and Disc Brakes front and rear, JCR Offroad Belly Skid Plate and Stage 2 Rock Sliders, Off Road Fab Winch Bumper and Quarter panel Guards, Liberal Front Wheel Well trimming and Rear Wheel Well Cut N Fold, 35" Goodyear MTR with Kevlars, Cobra CB and AW4 First Gear Lock Crawl switch, SYE, Stock XJ driveshafts front and rear and Milemarker SEC8000 Winch.

91 XJ Sport (Old Gray Jeep) - Layed to Rest (04-01-13)
87 XJ Laredo (Ole Red) - (My Jeep)
87 XJ Base (The Boys Jeep)
96 XJ Country (The Daughters Jeep)
08 Dodge Charger R/T (The Wifes Ride)
04 Silverado 2500HD Duramax/Allison (tow rig)
BuckB91XJ is offline   Reply With Quote
Old 10-30-2009, 01:35 AM   #3
Member
 
jeepfreak82's Avatar
 
Join Date: Oct 2008
Location: North Carolina
Posts: 242

View jeepfreak82's Photo Album My Photos
1994 Cherokee
Send a message via Yahoo to jeepfreak82
Default

Transmission control module is mounted on the lower panel on the passenger side of the dash. Could be bad as it controls the tranny
__________________
jeepfreak82
My new Mistress;
'01 Cherokee Sport 4.0 auto, np231 planning 3" lift and numerous other mods including bumpers and sliders
'98 Ram 3500 CTD 24v 2x4 dually

The ones I learned on;
'94 Cherokee (The Donkey Slayer!!!) (sold)

'92 Cherokee
'70 Commando (the continuing project...) (sold)
jeepfreak82 is offline   Reply With Quote
Old 10-30-2009, 10:11 AM   #4
Senior Member
 
RENIXBEAST's Avatar
 
Join Date: Aug 2009
Location: Effingham, N.H.
Posts: 958

View RENIXBEAST's Photo Album My Photos
1989 Cherokee
Default

Yes it has power/comfort but it doesnt't seem to make a difference in either position. I unplugged the TCU and it shifted manually, I was told that means its working?
__________________
SCRAPYARD SURVIVOR
Just Empty Every Pocket
Just Enough Essential Parts
1989 Cherokee Pioneer, 4.0, AW4, Around 5.5"s- 3.5" RE SF, 2" poly spacers, 2" shackles, HP-D30/C8.25, 33/12.5/15, front hitch, S.Y.E.
RENIXBEAST is offline   Reply With Quote
Old 10-30-2009, 10:38 AM   #5
CF Veteran
 
BuckB91XJ's Avatar
 
Join Date: Nov 2008
Location: Oak Harbor, WA.
Posts: 6,985

View BuckB91XJ's Photo Album My Photos
1987 Cherokee
Default

If you unplug the TCU and the tranny shifts fine manuallly that means the tranny is fine and that you have a TCU issue.
__________________
Brian "Buck" Buchanan, U.S. Navy Chief Petty Officer (RETIRED) - 87 XJ Laredo, Ol' Red - 8.5" Rusty's Offroad/Rough Country lift, D30 trussed and D44 high clearance shock mounts, 4.56's, Aussies, Chromos and Disc Brakes front and rear, JCR Offroad Belly Skid Plate and Stage 2 Rock Sliders, Off Road Fab Winch Bumper and Quarter panel Guards, Liberal Front Wheel Well trimming and Rear Wheel Well Cut N Fold, 35" Goodyear MTR with Kevlars, Cobra CB and AW4 First Gear Lock Crawl switch, SYE, Stock XJ driveshafts front and rear and Milemarker SEC8000 Winch.

91 XJ Sport (Old Gray Jeep) - Layed to Rest (04-01-13)
87 XJ Laredo (Ole Red) - (My Jeep)
87 XJ Base (The Boys Jeep)
96 XJ Country (The Daughters Jeep)
08 Dodge Charger R/T (The Wifes Ride)
04 Silverado 2500HD Duramax/Allison (tow rig)
BuckB91XJ is offline   Reply With Quote
Old 11-16-2009, 11:42 AM   #6
Senior Member
 
RENIXBEAST's Avatar
 
Join Date: Aug 2009
Location: Effingham, N.H.
Posts: 958

View RENIXBEAST's Photo Album My Photos
1989 Cherokee
Default

Alright i changed the TCU and now it shifts through the gears better than before but wont go into 4th. I get to 50mph and it feels like the trans is slipping but it just wont shift to OD????????????
__________________
SCRAPYARD SURVIVOR
Just Empty Every Pocket
Just Enough Essential Parts
1989 Cherokee Pioneer, 4.0, AW4, Around 5.5"s- 3.5" RE SF, 2" poly spacers, 2" shackles, HP-D30/C8.25, 33/12.5/15, front hitch, S.Y.E.
RENIXBEAST is offline   Reply With Quote
 
 
 
Reply

Go Back   Jeep Cherokee Forum > Technical Discussion > OEM Cherokee Tech



Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools Search this Thread
Search this Thread:

Advanced Search

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



All times are GMT -5. The time now is 10:46 PM.


This site is in no way affiliated with Jeep or Chrysler.

Emails Backup