Go Back   Jeep Garage - Jeep Forum > Jeep Platform Discussion > Grand Cherokee - WJ > Troubleshooting/Problems

Join Jeep Garage Today
Reply
 
Thread Tools Display Modes
 
  #1  
Old 02-14-2011, 06:15 PM
Member
 
Join Date: Nov 2010
Location: Bay Area and Reno
Posts: 141
Thanks: 0
Thanked 1 Time in 1 Post
Rep Power: 1529
FredoinSF is on a distinguished road
Coolant questions

My 02 WJ Ltd 4.7 V8 had some cooling / heating issues a couple of months ago. It started out with a radiator leak and after radiator replacement there was no heat. I thought it was blend door related but they turned out to be functional. I posted a thread and feedback pointed to a clogged heater core. Heat magically returned one day and has not left since, so I am guessing there was air trapped in the system from the radiator replacement and it worked itself out after multiple heating / cooling cycles.

It's been about 2 months / 3,000 miles since this happened and while I should be happy that all is working fine now, I am convinced the shop did not use the proper procedure to bleed the sytem and as a result, I am not trusting what they said about the coolant they used. They put in Prestone coolant, they said it is an ethylene glycol formula they put in everything and it would be fine for the Jeep.

Since I intend on keeping this car for 2 to 3 more years, I would really feel better if it had the HOAT special sauce Chrysler recommends. So, should I drain the Prestone and put in the HOAT coolant? If yes, do I need to do anyting other than drain and fill per the procedure at wjjeeps.com? Knowing I had that no heat episode, should I leave it alone since everything is working just fine right now.
__________________

__________________
02 WJ Ltd 4.7 - RIP 10-01-11
Was hoping for a CRD WK2, now have X5 Diesel.

Reply With Quote
  #2  
Old 02-15-2011, 05:11 AM
cheapjeep's Avatar
Amber Instigator
My Jeep: 2004 4.7 HO WJ
 
Join Date: Sep 2010
Location: Vintondale Pa.
Posts: 3,093
Thanks: 95
Thanked 68 Times in 64 Posts
Rep Power: 331880
cheapjeep has a reputation beyond reputecheapjeep has a reputation beyond reputecheapjeep has a reputation beyond reputecheapjeep has a reputation beyond reputecheapjeep has a reputation beyond reputecheapjeep has a reputation beyond reputecheapjeep has a reputation beyond reputecheapjeep has a reputation beyond reputecheapjeep has a reputation beyond reputecheapjeep has a reputation beyond reputecheapjeep has a reputation beyond repute
Garage
Re: Coolant questions

I think you'll be fine. I've been using the regular green stuff in mine for years now.
__________________

__________________
Dave'04 Overland,I don't even remember what I did to it anymore.

Quote:
Originally Posted by TJXJWJ View Post
OK, fine...I'll admit...some amber lamps are good, and necessary.
Reply With Quote
  #3  
Old 02-15-2011, 09:25 PM
01grand's Avatar
Super Moderator

My Jeep: 2001 4.7L WJ
 
Join Date: Dec 2010
Location: Prior Lake, MN
Posts: 1,803
Thanks: 37
Thanked 60 Times in 59 Posts
Rep Power: 54316
01grand has a reputation beyond repute01grand has a reputation beyond repute01grand has a reputation beyond repute01grand has a reputation beyond repute01grand has a reputation beyond repute01grand has a reputation beyond repute01grand has a reputation beyond repute01grand has a reputation beyond repute01grand has a reputation beyond repute01grand has a reputation beyond repute01grand has a reputation beyond repute
Re: Coolant questions

If it is the newer kind of prestone it is a HOAT formula. Many manufacturers are going to this now. Ethylene glycol is I believe present in most or all coolants, and color is determined by the manufacturer of the coolant, not its chemical makeup.
__________________
Aaron

My Jeep: 2001 Grand Cherokee Limited, 245/65R17 Falken Rocky Mountain ATS, K&N drop in air filter, Bilstein HD's. De-badged, eagle-eye LED Tails & LED 3rd brake light, Addco front and rear sway bars, Superchips tuned & TM snip, interior 6k LED's, Gen3 ccfl projectors with Volt 6k HID lows, akebono brake upgrade with R1 Concepts premium rotors.
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
Coolant Flush jasonkoscho Grand Cherokee - WK 10 01-05-2011 10:24 AM
Need coolant asap... socalwk Grand Cherokee - WK 17 11-16-2010 01:21 AM
Zerex G-05 Coolant cain45 Grand Cherokee - WK 8 09-19-2010 01:33 PM
Disappearing Coolant 1 GRAND Grand Cherokee - WK 11 05-27-2010 07:42 PM
Coolant Fluid Frankie Grand Cherokee - WK 4 09-29-2009 01:20 AM

Powered by vBadvanced CMPS v3.2.3

All times are GMT -5. The time now is 07:29 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