05 Liberty CRD overheating??? - JeepForum.com
Search  
Sign Up   Today's Posts
User: Pass: Remember?
Advertise Here
Jeep Home Jeep Forum Jeep Classifieds Jeep Registry JeepSpace Jeep Reviews Jeep Gallery Jeep Clubs Jeep Groups Jeep Videos Jeep Events Jeep Articles
Go Back JeepForum.com > Models > Jeep Liberty Forums > KJ Liberty Forum > 05 Liberty CRD overheating???

Stainless Steel Door Hinge PinsPoly Door Hinge BushingsFS: 2007-2013 Jeep Wrangler "HALO" Angel Eye Kit

Reply
Unread 07-08-2010, 07:32 PM   #1
Dieselgirl
Registered User
2005 KJ Liberty 
 
Join Date: Jul 2010
Location: OR
Posts: 14
05 Liberty CRD overheating???

I've been having a problem with my jeep overheating during hot weather grade climbs or during towing up hills. It runs in the red for just a second and I hear a ding and then the auxillary fan kicks on and cools it down to normal. Seems to me like the thermal switch that controls the auxillary fan isn't set at the right temperature or something. Anyone else have this problem and fixed it? Other than this issue I love the hell out of it. Great power and fuel economy! She's got about 78K on it right now. The only other issue I've had was replaced blown intercooler lines.


Last edited by Dieselgirl; 07-08-2010 at 09:33 PM..
Dieselgirl is offline   Reply With Quote
Unread 07-08-2010, 08:21 PM   #2
WXman
Registered User
2001 WJ 
 
Join Date: Jun 2003
Location: Kentucky
Posts: 3,101
Sounds like your thermostat may be dead or dying. It's hard to say for sure unless we know specifically how long you're climbing the hill, how hot it is outside, how fast you're going, etc.
__________________
'92 YJ - heavily modded
'96 ZJ - heavily modded
'05 KJ CRD Limited - 370 lb./ft. from a 4-cylinder and trail ready. Pure awesomeness.
'11 Mango Tango JKU Sport - Mods
'12 Dozer JKU Sport S - 6-speed - ACE rock rails - Max Tow package - Daystar spacers - 33x12.50 Duratracs
WXman is offline   Reply With Quote
Unread 07-08-2010, 08:37 PM   #3
95BadBoy
Moderator
2005 TJ Wrangler 
 
Join Date: May 2006
Location: Grand Forks, ND
Posts: 2,847
I don't know that there is any setting adjustment for the aux fan. Though the aux fan should have kicked in B4 hitting the chime one would think. The actual reading on CRD's temp gage is a more than a little different compared to other vehicles though. Maybe a slightly stubborn stat. Is there any upgrades on your 05 ?

Has the HOAT coolant been changed on your rig yet? Just throwing that one out there. Hopefully another owner that has experienced this issue will chime in.
__________________
05 TJ RME 42RLE with some things
05 KJ CRD 545RFE, GDE Eco tune, Franky II, Al's 4.5 A-arms, JK Rubi Moabs, Silent Armors 245-70-17's, Spidertrax Adapters, Rola Basket, Fumoto Valve, Pinch welds pounded

FS or FT (2) JK Rubi 17" Moab Rims - really nice shape
Need JK Rear Spare tire bracket for project
95BadBoy is offline   Reply With Quote
Unread 07-08-2010, 09:38 PM   #4
Dieselgirl
Registered User
2005 KJ Liberty 
 
Join Date: Jul 2010
Location: OR
Posts: 14
5 mile 6% grade. 70-103 degrees. No idea what a hoat coolant is. The aux. fan (I'd think) should kick on before it got to the red which is why I'm saying that the sensor must be inaccurate.
Dieselgirl is offline   Reply With Quote
Unread 07-09-2010, 05:12 AM   #5
95BadBoy
Moderator
2005 TJ Wrangler 
 
Join Date: May 2006
Location: Grand Forks, ND
Posts: 2,847
Hoat is just the type of coolant used in our KJ's. It does have a life span, but don't believe that it is the cause of the overheating.
__________________
05 TJ RME 42RLE with some things
05 KJ CRD 545RFE, GDE Eco tune, Franky II, Al's 4.5 A-arms, JK Rubi Moabs, Silent Armors 245-70-17's, Spidertrax Adapters, Rola Basket, Fumoto Valve, Pinch welds pounded

FS or FT (2) JK Rubi 17" Moab Rims - really nice shape
Need JK Rear Spare tire bracket for project
95BadBoy is offline   Reply With Quote
Unread 07-09-2010, 05:55 AM   #6
GDE
Registered User
2005 KJ Liberty 
 
Join Date: Jul 2009
Location: Commerce Township, Michigan
Posts: 147
dieselgirl,

The 2005 KJ CRD coolant gauge on the cluster is very biased to read hot when pulling grades with trailers. There was a TSB to reflash the cluster and this will recalibrate the gauge to read slightly more accurate. Here is a link that shows the 2006 coolant gauge vs. the 2005 coolant gauge calibration.

There is some variability in the mechanical fan enagagement temperature, but it turns on long before the engine is overheating. The engine also has a self protection mode to prevent overheating...as the temps reach the safe limit the engine will start to limit the allowable injected fuel quantity until stabilization is reached.

Coolant Gauge Breakdown


GDE
GDE is offline   Reply With Quote
Unread 07-09-2010, 03:04 PM   #7
Dieselgirl
Registered User
2005 KJ Liberty 
 
Join Date: Jul 2010
Location: OR
Posts: 14
Just found a sticker on the underside of my hood that says:
Replace torque converter
Reprogram ECM & TCM
Recall F32 Dealer Code: 68840
12-15-06

So this thing IS getting quite hot. Maybe my thermostat is bad?

Last edited by Dieselgirl; 07-09-2010 at 03:56 PM..
Dieselgirl is offline   Reply With Quote
Unread 07-14-2010, 03:33 PM   #8
Dieselgirl
Registered User
2005 KJ Liberty 
 
Join Date: Jul 2010
Location: OR
Posts: 14
Update!

Well my husband fixed it. Now I remember why I married him
Dieselgirl is offline   Reply With Quote
Unread 07-14-2010, 07:22 PM   #9
95BadBoy
Moderator
2005 TJ Wrangler 
 
Join Date: May 2006
Location: Grand Forks, ND
Posts: 2,847
Quote:
Originally Posted by Dieselgirl View Post
Well my husband fixed it. Now I remember why I married him

What turned out to be the cause of the problem?
__________________
05 TJ RME 42RLE with some things
05 KJ CRD 545RFE, GDE Eco tune, Franky II, Al's 4.5 A-arms, JK Rubi Moabs, Silent Armors 245-70-17's, Spidertrax Adapters, Rola Basket, Fumoto Valve, Pinch welds pounded

FS or FT (2) JK Rubi 17" Moab Rims - really nice shape
Need JK Rear Spare tire bracket for project
95BadBoy is offline   Reply With Quote
Unread 07-15-2010, 06:14 AM   #10
dfw
Registered User
 
Join Date: Mar 2005
Posts: 93
I followed someone's advice by limiting RPM's. When towing on the long grades in hot weather, keep your RPM's below 2000. As you let your RPM's go higher than 2000 the gauge will follow. Obviously, this approach limits speeds to about 45mph when the tranny is in 3rd.
dfw is offline   Reply With Quote
Unread 07-15-2010, 09:07 PM   #11
Dieselgirl
Registered User
2005 KJ Liberty 
 
Join Date: Jul 2010
Location: OR
Posts: 14
Took the rig to the dealers to reflash the temperature gauge, added a tube of Dr. Trannys instant shudder fix, unplugged the MAF and removed/cleaned/replaced the MAP sensor.
Dieselgirl is offline   Reply With Quote
Reply

Tags
Liberty , diesel , overheat
Thread Tools


Suggested Threads





Jeep, Wrangler, Cherokee, Grand Cherokee, and other models are copyrighted and trademarked to Jeep/Chrysler Corporation. JeepForum.com is not in any way associated with Jeep or the Chrysler Corp.