Coolant Flush/ Restore Question

[Lastcaveman]

Finally did it but it seems to have made it worse. The question I have is about the procedure. On the forum here it is suggested to remove the thermostat to do the flush. I did that and drove for more than a hour and a half with the outside temp. at 90 degrees and could only get the coolant temp up to 160 degrees. The directions on the Restore bottle says I need to get the temp. to 185 degrees. Is this chemical temp. activated? Is that why it didn`t work?

[PowerstrokeTech82787]

Originally Posted by Lastcaveman

Finally did it but it seems to have made it worse. The question I have is about the procedure. On the forum here it is suggested to remove the thermostat to do the flush. I did that and drove for more than a hour and a half with the outside temp. at 90 degrees and could only get the coolant temp up to 160 degrees. The directions on the Restore bottle says I need to get the temp. to 185 degrees. Is this chemical temp. activated? Is that why it didn`t work?

why would you pull the t stat?

Any coolant flush on a 6.0 6.4 or 6.7 goes like this...

Step 1. Drive til hot bring into the shop shut down remove degas bottle cap
Step 2. Open pet****
Step 3. Allow coolant to come flowing out.
Step 4. Enjoy a cold one or a smoke and let coolant drain.
Step 5. Come back with your snapon radkit
Step 6. Tighten pet ****.
Step 7. Put vacuum on coolant system.
Step 8. get a 5 gal bucket and fill with water or flush with water whatever makes you happy.
Step 9. Check gauge to see if it holds vacuum.
Step 10. Put fill hose in bucket after you placed bucket on battery.
Step 11. Open pet**** on snap on radkit let the air get in then close it when coolant/water/flush gets to radkit.
Step 12. place vacuum on system again for a couple seconds.
Step 13. Open pet**** on radkit and let fill
Step 14. Once done, pull radkit off bottle, place cap on bottle.
Step 15. Place your radkit back in your box close hood and road test.
Step 16. Inspect coolant level. Add if need.
Step 17. repeat if flushing or your done.

[HAM_RADIO_MAN]

6.0 coolant flush write-up

Flushing and Cleaning the 6.0


There have been some cases that have come to light that indicate the flushing in some cases can lead to a plugged oil cooler. When flushing esp with the VC-9 which is an iron de-scaler the junk that is liberated from your cooling system wall can sometimes find its way into your oil cooler and plug it further and cause higher deltas. This is not the fault of the flush per say, some cooling systems are full of crud. If you have high deltas flushing is not going to fix the problem. Flushing is a great way to prevent a repeat problem once you replaced the oil cooler that was plugged to start with. When I did my flush I must admit I didn’t have a Snap-on Rad-Kit. I used restore only and my deltas are still at 4 deg.

[Jasun26]

My thoughts are that the only reason why the 185 degree was needed to be reached was to get the thermostat to open up. Since you took it out that step was not needed.

[PowerstrokeTech82787]

Originally Posted by HAM_RADIO_MAN

6.0 coolant flush write-up

Flushing and Cleaning the 6.0


There have been some cases that have come to light that indicate the flushing in some cases can lead to a plugged oil cooler. When flushing esp with the VC-9 which is an iron de-scaler the junk that is liberated from your cooling system wall can sometimes find its way into your oil cooler and plug it further and cause higher deltas. This is not the fault of the flush per say, some cooling systems are full of crud. If you have high deltas flushing is not going to fix the problem. Flushing is a great way to prevent a repeat problem once you replaced the oil cooler that was plugged to start with. When I did my flush I must admit I didn’t have a Snap-on Rad-Kit. I used restore only and my deltas are still at 4 deg.

yeah thats why i dont add that crap in, I agree 100% if theres any crap in the cooling system its guna get stuck in the oil cooler. I use VC1, head gasket jobs after ive vacuumed all the coolant oil ports and pistons i still run straight water and drain it a couple times might put a shot of dawn dish soap in there (as in a couple small squirts not a shot glass full)

Im surprised that even with the on going issue with the 6.4 radiators blowing and front covers suffering from cavitation and impellers losing fins, that ford hasnt called for a re-call or placed an effective TSB where we install a coolant filter at least...

That rad kit from snap on is something everyone who owns a 6.0 should invest in. or any diesel for that matter. Fills it to the proper level every time. dont have to waste any time burping it.