Go Back   Jeep Garage - Jeep Forum > Jeep Platform Discussion > Grand Cherokee - ZJ

Join Jeep Garage Today
Reply
 
Thread Tools Display Modes
 
  #1  
Old 05-24-2010, 06:40 PM
erleep's Avatar
Member
My Jeep: 1993 4.0L ZJ
 
Join Date: Oct 2009
Location: mosinee wisconsin
Posts: 133
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 1924
erleep is on a distinguished road
Send a message via AIM to erleep
over heating problem

OK so here is it i towed my boat out to the lake last weekend and my distributor went out the lower bushing craped out on me what a racket it made sounded like a bad wheel baring

so i went and bought a new on 182.00 later put it in re timed the jeep and now my temp gauge is running about 216 now this truck has never ran hotter that the first line like a 1/4 of a tank mark if you were looking at it it dose not get hotter than 216 but makes me worried because this is not normal for this jeep i flushed the coolant today and was thinking about getting a lower thermostat for it what do you all think i should do and it only dose this when i have to boat on it other wise it runs just a bit above the norm but still hoter than what i am used to
__________________

__________________
Reply With Quote
  #2  
Old 05-24-2010, 06:42 PM
erleep's Avatar
Member
My Jeep: 1993 4.0L ZJ
 
Join Date: Oct 2009
Location: mosinee wisconsin
Posts: 133
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 1924
erleep is on a distinguished road
Send a message via AIM to erleep
Re: over heating problem

lol for got it is a 4.0 i6
__________________

__________________
Reply With Quote
  #3  
Old 05-28-2010, 04:21 PM
Premium Member
My Jeep: 2005 5.7L WK
 
Join Date: Jan 2010
Location: Edmonton Alberta
Posts: 119
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 1827
dcjeepgc is on a distinguished road
Re: over heating problem

The engine bays on those ZJs are like ovens. I installed a Hesco High Flow waterpump and a new 3 row radiator that I bought off ebay, along with new rad hoses, and that solved my overheating problems. Prior to that the temperature that my engine was getting to, especially when using the airconditioning, was higher and higher with the age and mileage of the jeep. A cooler thermostat might make your engine run poorer and get worse gas mileage as the 02 sensors send messages to the fuel pressure regulator to lean out at a certain operating temperature. A 180 degree thermosstat will not allow that temperature to be reached before openning the termostat to flow the coolant through the rad. You could then run the risk of running a little rich....but for some guys they don't mind that.
__________________
2005 Deep Beryl Green WK 5.7L Hemi: QD II/ SRT8 shifter, petals, roof rails, wheels, grille, rear Brembo calipers, rear sway bar and springs/ body color mirror covers/ Xtreme HID 4300 Dims and Fogs/ Cabin Filteration Kit/ shorty antenna/ SC Flashpaq 91 tune/ full LED interior and partial exterior/ BWoody 4" CAI/Stillen headlight covers/ partial de-badging/ My GIG w Lockpick/ 22Elite leather console cover. Mods to come in the Spring: WK bilsteins, SRT springs, Bwoody end links and Brembo calipers for the front.
Reply With Quote
  #4  
Old 05-28-2010, 04:29 PM
Chaoul1's Avatar
The Original

My Jeep: 2010 6.1L WK
 
Join Date: May 2009
Location: Fairfax, Virginia
Posts: 6,913
Thanks: 2
Thanked 25 Times in 25 Posts
Rep Power: 63379
Chaoul1 has a reputation beyond reputeChaoul1 has a reputation beyond reputeChaoul1 has a reputation beyond reputeChaoul1 has a reputation beyond reputeChaoul1 has a reputation beyond reputeChaoul1 has a reputation beyond reputeChaoul1 has a reputation beyond reputeChaoul1 has a reputation beyond reputeChaoul1 has a reputation beyond reputeChaoul1 has a reputation beyond reputeChaoul1 has a reputation beyond repute
Re: over heating problem

Maybe the original T-stat is bad. Try and put a new one in.
__________________
-Paul-
2010 Jeep Grand Cherokee SRT8

PaulsProfessional Automotive Detailing

PPAD's Custom Headlights

Contact for both DetailingPPADscustomwork@yahoo.com
Reply With Quote
  #5  
Old 05-28-2010, 04:30 PM
Premium Member
My Jeep: 2005 5.7L WK
 
Join Date: Jan 2010
Location: Edmonton Alberta
Posts: 119
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 1827
dcjeepgc is on a distinguished road
Re: over heating problem

Another thing you might want to consider is swapping out your old fan clutch for a new one. This often gets overlooked as a potential problem, especially in higher mileagr jeeps where the clutch may have lost some of it's fluid that signals the fan to fully engage at a certain temperature. It's an easy inexpensive swap.
__________________
2005 Deep Beryl Green WK 5.7L Hemi: QD II/ SRT8 shifter, petals, roof rails, wheels, grille, rear Brembo calipers, rear sway bar and springs/ body color mirror covers/ Xtreme HID 4300 Dims and Fogs/ Cabin Filteration Kit/ shorty antenna/ SC Flashpaq 91 tune/ full LED interior and partial exterior/ BWoody 4" CAI/Stillen headlight covers/ partial de-badging/ My GIG w Lockpick/ 22Elite leather console cover. Mods to come in the Spring: WK bilsteins, SRT springs, Bwoody end links and Brembo calipers for the front.
Reply With Quote
  #6  
Old 07-08-2010, 10:44 PM
erleep's Avatar
Member
My Jeep: 1993 4.0L ZJ
 
Join Date: Oct 2009
Location: mosinee wisconsin
Posts: 133
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 1924
erleep is on a distinguished road
Send a message via AIM to erleep
Re: over heating problem

thanks guys it was a bad head gasket ended up rebuilding the top end
__________________

__________________
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
has anyone else had this problem? 99limited Audio, Video, Navigation & Electronic Modifications 14 04-01-2010 05:17 PM
99 Jeep Grand with Heating Problem rconrad Troubleshooting/Problems 1 11-28-2009 04:38 AM
Where to start?? Over heating ?? BUBBADOG Troubleshooting/Problems Discussion 11 07-01-2009 03:43 PM

Powered by vBadvanced CMPS v3.2.3

All times are GMT -5. The time now is 12:14 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