Coolant change without flush - Ford Powerstroke Diesel Forum
Powerstroke.org is the premier Diesel Truck Forum on the internet. Registered Users do not see the above ads.
Reply
 
LinkBack Thread Tools Display Modes
  #1  
Old 07-03-2011, 08:43 AM
Compression Ignition Addict
 

Join Date: Dec 2010
Location: Prince George, British Columbia
Posts: 152
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
Coolant change without flush

I have an 03 F350 with 260,000 kilomoters or about 160 miles for my american brothers. I recently installed gauges and see a 9-11 degree delta on my two critical temps. As far as I know the truck is running stock oil cooler and EGR. I am worried that doing a full coolant flush may clog my cooler. I am thinking of just doing a coolant CHANGE with a straight water flush and then topping up with cat elc. I will add a coolant filter at this time. Does this seem worthwhile??
Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
  #2  
Old 07-03-2011, 09:09 AM
information regurgitator
 

Join Date: Dec 2010
Location: NYC
Posts: 5,903
Thanks: 18
Thanked 180 Times in 167 Posts
Feedback Score: 0 reviews
No. The reason is that the existing coolant chemically coats the walls of your cooling system to aid in preventing cavitation. That film will degrade over time (along with the rest of the coolant) and should be removed. Rust scale will start to form as this coating 'wears' and that should also be addressed with the second chemical flushing process. (The vc-9 rust scale remover)
Reply With Quote Quick reply to this message
  #3  
Old 07-03-2011, 09:17 AM
Compression Ignition Addict
 

Join Date: Dec 2010
Location: Prince George, British Columbia
Posts: 152
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
So, I guess there is really no way around replacing the cooler after the flush, assuming it clogs up?
Reply With Quote Quick reply to this message
  #4  
Old 07-03-2011, 09:20 AM
Powerstroke.org Rookie
 

Join Date: Oct 2010
Posts: 10
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
I was under the impression that many people have experienced oil cooler clogging after flushing with restore followed by restore+ or VC-9. Long story short, what I got out of several posts on the subject was to avoid the flush if the delta's were not too far apart. Did I misunderstand, or is that solid advice?
Reply With Quote Quick reply to this message
  #5  
Old 07-03-2011, 09:32 AM
information regurgitator
 

Join Date: Dec 2010
Location: NYC
Posts: 5,903
Thanks: 18
Thanked 180 Times in 167 Posts
Feedback Score: 0 reviews
Yes, there have been many that have clogged their coolers by the flushing activities. If the deltas are reasonably close, sure, avoid it. But if you have the Ford Gold in there and you have say 75-100K miles on that coolant, and GO BACK to that coolant, you can probably get away with just distilled water flushing. Keep in mind that you will have to check the nitrites in your NEW coolant as well as periodically check it and maintain the proper levels. Just because the coolant is new, DO NOT assume that the nitrites are sufficiently charged. Be prepared to be surprised at what the test shows.
When your delta is in the range where you are considering changing your oil cooler, then do the full chemical flushing.
Basically if you run the same coolant, you will not have to chemically flush it, but change the style of coolant and you have to chemically flush.
Reply With Quote Quick reply to this message
  #6  
Old 07-03-2011, 09:39 AM
information regurgitator
 

Join Date: Dec 2010
Location: NYC
Posts: 5,903
Thanks: 18
Thanked 180 Times in 167 Posts
Feedback Score: 0 reviews
The other way to do it (and probably the best way) Is to do the ENTIRE flushing process and the reverse flushing process as outlined in the link in my signature line.
Doing the whole flush can keep the cooler open and you can then switch to the ELC coolant of your choice.
Reply With Quote Quick reply to this message
  #7  
Old 07-03-2011, 04:28 PM
Compression Ignition Addict
 

Join Date: Dec 2010
Location: Prince George, British Columbia
Posts: 152
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
I guess that means one less thing on the to do list. Thanks for the info.
Reply With Quote Quick reply to this message
  #8  
Old 07-03-2011, 06:09 PM
Compression Ignition Addict
 

Join Date: Aug 2007
Location: New Brunswick, Canada
Posts: 774
Thanks: 1
Thanked 2 Times in 2 Posts
Feedback Score: 0 reviews
I did a flushing on mine last fall and dirt realy drained out off my engine cooling system. I have a feeling that it further dammaged my oil cooler. A lot of goo was left in the hoses and i never cleaned the degas tank at the time.
I replaced the coolant with Final Charge by teak and it cleaned everything that was in the system, the hoses are dry and the tank is completely clean. The filter never picked up any solids so it is now completely deluted in the new coolant. I have a feeling that the EC-1 coolant absorbed the goo from all over and now freely circulates in the system. I keep checking my degas tank and its clean and transparent. Of course I will need to flush earlier but I am very satisfied witht the cleaning the ELC did to my cooling system. And Final Charge can absorb 25% of coolant impurities so I feel confident that its what I have.

I am going to try to salvage one of my friends 6.0L in the next few weeks and see if my theory is right, anyway if there is no improvement after a while we are going to change the cooler anyway but I feel confident the same will happen to his truck as mine without a plugged cooler due to the gunk flushed out with chemicals.

I did a lower mileage 6.0L for an other friend and he wanted to stay away from the chemical flush and it was a success as his deltas never changed. It was at 5 and stayed at 5. His degas tank was very dirty with deposits and he cleaned it before the refill with ELC. He used Zerex HD ELC coolant.
Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
Reply

Quick Reply
Message:
Options

Register Now

In order to be able to post messages on the Ford Powerstroke Diesel 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.



Thread Tools
Display Modes

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
Trackbacks are On
Pingbacks are On
Refbacks are On



All times are GMT -8. The time now is 04:14 AM.


Powered by vBulletin® Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Search Engine Optimization by vBSEO 3.6.1
Garage Plus, Vendor Tools vBulletin Plugins by Drive Thru Online, Inc.

vB.Sponsors