Go Back   Jeep Garage - Jeep Forum > Jeep Technical Discussion > Troubleshooting/Problems Discussion

Join Jeep Garage Today
Reply
 
Thread Tools Display Modes
 
  #1  
Old 09-30-2013, 05:02 AM
MN_wjLIMITED's Avatar
Member
My Jeep: 1999 4.7 HO WJ
 
Join Date: Sep 2013
Location: rochester, mn
Posts: 16
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 354
MN_wjLIMITED is on a distinguished road
wj cooling issue?

Hey I'm new to jeep garage and seek help. I have a 99 4.7 limited and am having a hard time figuring out why it overheats a tad every couple weeks. To start it has a new radiator, t-stat, water pump, hoses, timing cover(used but not worn out too bad). Ill bleed the system and everything is good but every couple weeks it will get around 240ish in traffic and drop when I drive, check coolant and I have too add. It doesnt leak and a pressure test was good and the oil is clean.... almost forgot there is still a lot of pressure released even a few hours after sitting when I pull the cap off but the level in the overflow bottle is full and never changes. Any help would be great because this thing has me confused. Thanks
__________________

__________________
Reply With Quote
  #2  
Old 09-30-2013, 08:48 PM
Frango100's Avatar
Premium Member

My Jeep: 2004 4.7L WJ
 
Join Date: Dec 2009
Location: Brazil
Posts: 4,808
Thanks: 9
Thanked 75 Times in 70 Posts
Rep Power: 525740
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: wj cooling issue?

Welcome to the garage.
You made me confused: first you say that you have to add coolant, then you say that the level in the overflow reservoir never changes.
There seems to be a problem with the cooling fan, or does it run when the high temperature is reached?
Are you absolutely sure that no coolant is seaping away from some hot place, but evaporating? No coloured signs anywhere?
__________________

__________________
Frank

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

VW Beetle 2.0 TSI 2013
My new toy
Reply With Quote
  #3  
Old 09-30-2013, 09:01 PM
MN_wjLIMITED's Avatar
Member
My Jeep: 1999 4.7 HO WJ
 
Join Date: Sep 2013
Location: rochester, mn
Posts: 16
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 354
MN_wjLIMITED is on a distinguished road
Sorry I should have said the overflow never changes but the radiator it self has to be filled. I cant see any signs of anything which is the confusing part.
__________________
Reply With Quote
  #4  
Old 09-30-2013, 09:17 PM
Frango100's Avatar
Premium Member

My Jeep: 2004 4.7L WJ
 
Join Date: Dec 2009
Location: Brazil
Posts: 4,808
Thanks: 9
Thanked 75 Times in 70 Posts
Rep Power: 525740
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: wj cooling issue?

Overflow reservoir at right level and radiator low means some leak in the cooling system. When the engine cools down, an underpressure is created, which should draw coolant back from the overflow reservoir. A small check valve in the radiator cap should allow this. When you didn't change the radiator cap yet, i would do that first.
__________________
Frank

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

VW Beetle 2.0 TSI 2013
My new toy
Reply With Quote
  #5  
Old 09-30-2013, 09:18 PM
MN_wjLIMITED's Avatar
Member
My Jeep: 1999 4.7 HO WJ
 
Join Date: Sep 2013
Location: rochester, mn
Posts: 16
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 354
MN_wjLIMITED is on a distinguished road
Just did tonight so ill give it a few days and see where its at
__________________
Reply With Quote
  #6  
Old 10-01-2013, 06:38 PM
Frango100's Avatar
Premium Member

My Jeep: 2004 4.7L WJ
 
Join Date: Dec 2009
Location: Brazil
Posts: 4,808
Thanks: 9
Thanked 75 Times in 70 Posts
Rep Power: 525740
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: wj cooling issue?

Ok, let us know when its ok (or not).
__________________
Frank

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

VW Beetle 2.0 TSI 2013
My new toy
Reply With Quote
  #7  
Old 10-02-2013, 01:01 AM
MN_wjLIMITED's Avatar
Member
My Jeep: 1999 4.7 HO WJ
 
Join Date: Sep 2013
Location: rochester, mn
Posts: 16
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 354
MN_wjLIMITED is on a distinguished road
Will do, leta hope this solves it
__________________
Reply With Quote
  #8  
Old 10-07-2013, 07:47 PM
MN_wjLIMITED's Avatar
Member
My Jeep: 1999 4.7 HO WJ
 
Join Date: Sep 2013
Location: rochester, mn
Posts: 16
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 354
MN_wjLIMITED is on a distinguished road
Going on 5 days no issues but im going to give it another week or so.
__________________
Reply With Quote
  #9  
Old 10-07-2013, 09:17 PM
Frango100's Avatar
Premium Member

My Jeep: 2004 4.7L WJ
 
Join Date: Dec 2009
Location: Brazil
Posts: 4,808
Thanks: 9
Thanked 75 Times in 70 Posts
Rep Power: 525740
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: wj cooling issue?

Ok, keep us in the loop.
__________________
Frank

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

VW Beetle 2.0 TSI 2013
My new toy
Reply With Quote
  #10  
Old 10-16-2013, 09:49 PM
MN_wjLIMITED's Avatar
Member
My Jeep: 1999 4.7 HO WJ
 
Join Date: Sep 2013
Location: rochester, mn
Posts: 16
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 354
MN_wjLIMITED is on a distinguished road
Well two weeks in and im going to report no issues still so im calling it good to go.
__________________
Reply With Quote
  #11  
Old 10-17-2013, 09:44 AM
Frango100's Avatar
Premium Member

My Jeep: 2004 4.7L WJ
 
Join Date: Dec 2009
Location: Brazil
Posts: 4,808
Thanks: 9
Thanked 75 Times in 70 Posts
Rep Power: 525740
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: wj cooling issue?

Good to hear, nothing better then a simple (and cheap) solution.
__________________

__________________
Frank

JEEP Grand Cherokee 4.7 Lmtd 2004
HID 8000K in low and fog / Quad Squad member
Monroe Reflex 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
Ac not cooling Margo Trouble Shooting/Problems/Service 23 08-20-2014 08:16 PM
cooling help! gabegarcia956 Troubleshooting/Problems 3 01-17-2013 11:05 PM
4.0 WJ Ltd. cooling fan issue GeneralTJWillys Troubleshooting/Problems 3 07-20-2012 11:02 PM
cooling issue jeepsterjohn Troubleshooting/Problems 9 04-01-2012 01:43 PM
4.0 cooling issue jeffs2014 Engine Performance/Intake/Exhaust 6 12-31-2011 10:28 AM

Powered by vBadvanced CMPS v3.2.3

All times are GMT -5. The time now is 11:39 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