Jeep Wrangler Forum - Reply to Topic
Jeep Wrangler Forum

Go Back   Jeep Wrangler Forum > TJ Jeep Wrangler Forum > TJ General Discussion Forum > Home Coolant Flush Report

Join Wrangler Forum Today


Thread: Home Coolant Flush Report Reply to Thread
Title:
  
Message:
Post Icons
You may choose an icon for your message from the following list:
 

Register Now

In order to be able to post messages on the Jeep Wrangler Forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.
User Name:
If you do not want to register, fill this field only and the name will be used as user name for your post.
Password
Please enter a password for your user account. Note that passwords are case-sensitive.
Password:
Confirm Password:
Email Address
Please enter a valid email address for yourself.
Email Address:

Log-in

Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.



Additional Options
Miscellaneous Options

Topic Review (Newest First)
08-24-2012 10:30 AM
Kewrock Oh yeah. That Prestone 50/50 label is very misleading. It says "Can be mixed with any brand, any color" in big letters on the front label. But on the back label instructions it says for topping off, but makes NO mention of full replacement.
08-24-2012 09:28 AM
Kewrock Reviving this dead thread again.

Orange HAOT coolant is available at Amazon.com. It's even cheaper than buying a quality green coolant at an auto parts store. It's even free shipping and tax free.

It's NOT the same stuff! Yeah, It's 95% glycol but the other 5% is rust inhibitors specific to the metals used in these cooling systems. Mainly aluminum and cast alloys.
It doesn't make sense not to use it.
08-15-2012 10:06 PM
pcwolf Yep, just the way I did it. Not fond of cutting any hoses, and not putting any city water in my block. Drained, filled with distilled, drove with heater on high; repeat; repeat; fill with 5.25 qts HOAT then top with distilled. Bingo

Quote:
Originally Posted by UnlimitedLJ04 View Post
if you don't want to drain the block, the other way to do it is fill the entire system with only distilled water, get the Jeep warm...go for a drive, whatever. now drain it. if you want to be real thorough, you can rinse and repeat as many times as you like.

now, just like you did, refill with straight coolant, then top it off with distilled water.

the idea is to just dilute the mineral concentration a bunch....so the more rinse & repeats, the more dilute the mineral concentration from the tap water.
08-15-2012 09:00 PM
tangofox007
Quote:
Originally Posted by Mr.Ouija View Post
Do I have to be worried about any old coolant in my heater core since I did not flush it in the way I've read when people use those flush n fill kits?
No kit required. Just disconnect the heater hoses at the thermostat housing and water pump. To back flush, use hose that connects to water pump.
08-15-2012 10:03 AM
Mr.Ouija Ttt
08-15-2012 02:44 AM
Mr.Ouija Decided to flush my coolant system and replace system with zerex while I was changing my thermostat. What I did was spray water down the thermostat housing while the t stat was removed till the fluid came out clear at the radiator drain. Now my question is was this a proper way to have flushed the system? Do I have to be worried about any old coolant in my heater core since I did not flush it in the way I've read when people use those flush n fill kits?
06-03-2012 06:19 PM
ufatbasted
Quote:
Originally Posted by Wesboy View Post
Thanks for posting this pic - I never would have found the drain plug by myself.
On my '97, the plug is in a slightly different position but was easy to work out from the posted pic.

What's not obvious though is how to loosen the drain plug. I thought a square drive on a ratchet would fit - but unfortunately not.
1/4 is too small and 3/8 is too big.
So what did you use to remove the engine block drain plug?
03-28-2012 07:42 AM
Wesboy
Quote:
Originally Posted by DevilDogDoc View Post
There is a drain plug on the block, under the intake/exhaust manifolds.
Thanks for posting this pic - I never would have found the drain plug by myself.
On my '97, the plug is in a slightly different position but was easy to work out from the posted pic.

What's not obvious though is how to loosen the drain plug. I thought a square drive on a ratchet would fit - but unfortunately not.
1/4 is too small and 3/8 is too big.
02-24-2012 11:11 AM
UnlimitedLJ04
Quote:
Originally Posted by ipleadda2nd View Post
Is there a way of doing that without removing a core plug?
if you don't want to drain the block, the other way to do it is fill the entire system with only distilled water, get the Jeep warm...go for a drive, whatever. now drain it. if you want to be real thorough, you can rinse and repeat as many times as you like.

now, just like you did, refill with straight coolant, then top it off with distilled water.

the idea is to just dilute the mineral concentration a bunch....so the more rinse & repeats, the more dilute the mineral concentration from the tap water.
02-24-2012 08:54 AM
ipleadda2nd
Quote:
Originally Posted by MikalCarbine View Post
Reviving this one from the dead

Do you know what NAPA Part you used for the beefier tee? I'm pricing everything out now and they seem to have a bunch of these online

NAPA AUTO PARTS
No problem!

I don't remember. What I do remember is:
  1. It's black and not a universal fit. It was sized for a specific hose size.
  2. It's the correct size for the heater core inlet hose. What size is that? I don't remember. I do know it's bigger than the heater core outlet hose.
So I would find out the size of the heater core inlet hose and get the appropriate sized Napa TEE. Make sure you get the adapter to connect a garden hose to the TEE. The yellow thing pictured here:
NAPA AUTO PARTS

Just remember, that link goes to a universal fit TEE. I used one specific to the hose size.
02-23-2012 04:56 PM
MikalCarbine Reviving this one from the dead

Do you know what NAPA Part you used for the beefier tee? I'm pricing everything out now and they seem to have a bunch of these online

NAPA AUTO PARTS
11-23-2011 11:19 AM
ipleadda2nd
Quote:
Originally Posted by doolyd View Post
Well I read on here that the block only held a pint and according to what I put in there was still 3.5 quarts of water left in the system. Not sure if that is all in the block but definitely more than I had anticipated. Getting the block plug out is a PITA.
I hear ya! I guess I choose tap water in the system over removing a core plug.

Quote:
Originally Posted by Jondalar View Post
You did a better than average job.
Thanks!
11-22-2011 12:00 PM
Jondalar You did a better than average job.
11-22-2011 11:49 AM
doolyd
Quote:
Originally Posted by ipleadda2nd View Post
I was only able to put about 2 quarts in as well. The engine drain plug mentioned above would help solve that.
Well I read on here that the block only held a pint and according to what I put in there was still 3.5 quarts of water left in the system. Not sure if that is all in the block but definitely more than I had anticipated. Getting the block plug out is a PITA.
11-22-2011 08:42 AM
ipleadda2nd
Quote:
Originally Posted by doolyd View Post
Do you have any idea how much distilled water you "topped it off" with? I just flushed mine and put 5 quarts straight antifreeze and was only able to get 2 quarts of distilled which seems to mean there was 3.5 quarts of water left in the system which is most likely tap water. This excludes the overflow tank.
I was only able to put about 2 quarts in as well. The engine drain plug mentioned above would help solve that.
11-21-2011 06:30 PM
Barmanvarn You can by 50/50 premixed. Just saves some time and measuring.
11-21-2011 06:27 PM
doolyd
Quote:
Originally Posted by ipleadda2nd View Post
I can't believe I didn't know that! To late now....
Do you have any idea how much distilled water you "topped it off" with? I just flushed mine and put 5 quarts straight antifreeze and was only able to get 2 quarts of distilled which seems to mean there was 3.5 quarts of water left in the system which is most likely tap water. This excludes the overflow tank.
11-15-2011 05:26 PM
ipleadda2nd
Quote:
Originally Posted by DevilDogDoc View Post
There is a drain plug on the block, under the intake/exhaust manifolds.
I can't believe I didn't know that! To late now....
11-15-2011 04:53 PM
DevilDogDoc There is a drain plug on the block, under the intake/exhaust manifolds.
11-15-2011 03:46 PM
ipleadda2nd
Quote:
Originally Posted by DevilDogDoc View Post
You never drained the block. If you had you could get all distilled water in there.
Is there a way of doing that without removing a core plug?
11-15-2011 02:28 PM
tangofox007
Quote:
Originally Posted by ipleadda2nd View Post


On other threads people said regular ethylene-glycol is fine. I happen to find some HOAT at Napa and thought why not?


HOAT is 95% ethylene glycol. It's the remaining 5% that makes it different.
11-15-2011 02:21 PM
DevilDogDoc You never drained the block. If you had you could get all distilled water in there.
11-15-2011 02:19 PM
ipleadda2nd
Quote:
Originally Posted by doolyd View Post
What did you use to cut the heater hose to make it nice and clean?
I used a utility knife. I'm sure there are better ways. I was very careful not to cut myself, since it took quite a bit of force.

Quote:
Originally Posted by doolyd View Post
Can you use regular old Prestone 50/50 instead of the HOAT? I need to do this so I greatly appreciate your write up.
On other threads people said regular ethylene-glycol is fine. I happen to find some HOAT at Napa and thought why not?

Quote:
Originally Posted by doolyd View Post
I have also read of failures in the T that comes with the kit. Has anyone had one installed for a long time without issue? It seems you are adding two more failure points to your system and the plastic T can't hold up to the heat?
Napa sells their own brand of TEEs. It appeared to be a little stronger. I actually used it instead of the one that came with the Prestone kit.
11-15-2011 12:59 PM
doolyd I have also read of failures in the T that comes with the kit. Has anyone had one installed for a long time without issue? It seems you are adding two more failure points to your system and the plastic T can't hold up to the heat?
11-15-2011 12:23 PM
bobbav Seems like what you removed was pretty damn clean to me!
11-15-2011 12:21 PM
mannyssj13
Quote:
Originally Posted by doolyd
What did you use to cut the heater hose to make it nice and clean?

What do you do with all the fluid that you have drained into the pans...take it to Autozone for recycling?

Can you use regular old Prestone 50/50 instead of the HOAT? I need to do this so I greatly appreciate your write up.
I just did a flush on my jeep HOAT is hard to find around me. Pepboys autozone and advance doesn't care HOAT and the dealer wants to much for it so I just used prestone. I'm sure it's fine people use it all the time.. Guess everyone has their own opinion if I had HOAT around me and wasn't do hard to find I would use that but I'm not paying an arm and a leg at the dealer or trying to travel the world looking for it. Just my 2 cents tho. Sure people would disagree with me.
11-15-2011 12:11 PM
doolyd What did you use to cut the heater hose to make it nice and clean?

What do you do with all the fluid that you have drained into the pans...take it to Autozone for recycling?

Can you use regular old Prestone 50/50 instead of the HOAT? I need to do this so I greatly appreciate your write up.
11-15-2011 12:00 PM
ipleadda2nd
Quote:
Originally Posted by tangofox007 View Post
Trapped flushing water will further dilute a 50/50 mixture.
Exactly! That's why I put in 5.25 quarts of coolant in radiator and just topped off with distilled water. I estimate there was around 4 quarts of water still in system. That means I only used around 1.25 quarts of distilled. If I had thought of a way to remove all the tap water I would only have distilled, which is preferable.
11-15-2011 10:52 AM
tangofox007
Quote:
Originally Posted by ipleadda2nd View Post
[SIZE=4][B]My manual says my coolant system takes 10.5 quarts of fluid. So if I mix 50/50 I will use 5.25 quarts coolant and 5.25 quarts distilled water.
Trapped flushing water will further dilute a 50/50 mixture.
11-15-2011 10:36 AM
Mr Mac Excellent tutorial! This one needs to be a sticky!
This thread has more than 30 replies. Click here to review the whole thread.

Posting Rules
You may post new threads
You may 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


All times are GMT -5. The time now is 06:00 AM.



Jeep®, Wrangler, Liberty, Wagoneer, Cherokee, and Grand Cherokee are copyrighted and trademarked to Chrysler Motors LLC.
Wranglerforum.com is not in any way associated with the Chrysler Motors LLC