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

Join Jeep Garage Today
Reply
 
Thread Tools Display Modes
 
  #1  
Old 06-14-2012, 12:40 PM
New Member
My Jeep: 2000 4.0L TJ
 
Join Date: Mar 2012
Location: Lake Peekskill, NY
Posts: 3
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 0
2BassTurds is on a distinguished road
Coolant Problem 2000 Wrangler Sahara

Somebody give me some advice please. I've replaced the thermostat and the housing, the radiator and the water pump. I even flushed the system twice. This is my wife's 2000 Wrangler Sahara. It's got over 177K on it, runs great normally but now is over heating again. Repair guy says we may have a cracked head. Any advice? How can I check for a cracked head? I'm ok with getting my hands dirty but not a mechanic by any means. Any help would be appreciated. Thanks.
__________________

__________________
Reply With Quote
  #2  
Old 06-14-2012, 01:47 PM
Frango100's Avatar
Premium Member

My Jeep: 2004 4.7L WJ
 
Join Date: Dec 2009
Location: Brazil
Posts: 4,668
Thanks: 9
Thanked 56 Times in 54 Posts
Rep Power: 525479
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: Coolant Problem 2000 Wrangler Sahara

Is it overheating all the time, or only when standing still?
Are the radiator hoses hot, or just luke warm? There are 2 types of waterpumps for the 4.0 engine and they turn in different directions. If you would have the wrong one, there would be a very low coolant flow with overheating as a result.
Not sure if the thermostat could be installed wrongly, which could prevent it from opening.
Is there any coolant loss?
__________________

__________________
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 06-15-2012, 02:05 PM
New Member
My Jeep: 2000 4.0L TJ
 
Join Date: Mar 2012
Location: Lake Peekskill, NY
Posts: 3
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 0
2BassTurds is on a distinguished road
Re: Coolant Problem 2000 Wrangler Sahara

No coolant loss. Jeep's been parked for a few days so I gotta go start it and let it run and check the hoses. How will I know if I have the wrong water pump?
__________________
Reply With Quote
  #4  
Old 06-15-2012, 02:55 PM
Frango100's Avatar
Premium Member

My Jeep: 2004 4.7L WJ
 
Join Date: Dec 2009
Location: Brazil
Posts: 4,668
Thanks: 9
Thanked 56 Times in 54 Posts
Rep Power: 525479
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: Coolant Problem 2000 Wrangler Sahara

If the engine temperature rises quickly and the hoses don't get hot, or the thermostat doesn't open, or there is no (sufficient) coolant flow. Do you still have the old pump, to compare?
__________________
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
wrangler unlimited sahara 2.5 inch lift question quickartist Wrangler-JK 1 04-09-2012 04:30 PM
How is the 2008 Jeep Wrangler unlimited Sahara off road stock? Jmilz08 Wrangler-JK 0 12-08-2011 09:22 PM
New 2011 wrangler unlimited sahara Dgdds91 Wrangler-JK 3 08-30-2011 08:10 PM
What roof rack for my Wrangler Unlimited Sahara? JerryC Visual Modifications 2 05-04-2011 10:22 AM

Powered by vBadvanced CMPS v3.2.3

All times are GMT -5. The time now is 11:29 AM.


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