Bought a coolant filter
Hotshot
Joined: Jul 2005
Posts: 13,834
Likes: 25
From: Middle Tn.
1. Drain coolant
2. Add 2 cans of VC-9 and top off with distilled water.
3. Drive 20 to 30 miles, preferably at highway speeds.
4. Drain radiator at petcock first, then pull lower hose. Then remove block plug on driver side. Not necesary to do passenger side.
5. Remove t-stat. To do this, remove air cleaner. Then 2 nuts on t-stat housing. Pry press. sensor bracket off of studs. Tight fit but it will move. Remove 2 more nuts and pull t-stat and housing from studs.
6. Remove t-stat and put housing back on. Re-assemble everything and fill with distilled water.
7. Run at 1200 rpm's for 3 to 5 minutes and drain as described in step 4.
8. Repeat 4 to 5 times or untill water coming at is as clear as water going in.
9. Install t-stat using new O ring. I used vaseline to hold the O ring in place.
10. After everything is re-assembled fill with a 50/50 mix of Ford premium gold or Zerex GO-5.
11. Start engine and check for leaks. This is a lot easier and quicker than it sounds. If you don't remove t-stat then you have to run truck between each flush till t-stat fully opens and then let cool down to work on it.
Highly recommend installing coolant filter kit while cooling syatem is empty. <?xml:namespace prefix = o ns = "urn:schemas-microsoft-com
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Thread Starter
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Posting Guru
Joined: Oct 2009
Posts: 1,340
Likes: 4
From: Bradenton, FL
Thats why i wanted to do the flush, have to drain the coolant to do the install, so might as well flush the system.
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Senior User
Joined: Jan 2010
Posts: 434
Likes: 0
May not be the best write up but thought it might help.
1. Drain coolant
2. Add 2 cans of VC-9 and top off with distilled water.
3. Drive 20 to 30 miles, preferably at highway speeds.
4. Drain radiator at petcock first, then pull lower hose. Then remove block plug on driver side. Not necesary to do passenger side.
5. Remove t-stat. To do this, remove air cleaner. Then 2 nuts on t-stat housing. Pry press. sensor bracket off of studs. Tight fit but it will move. Remove 2 more nuts and pull t-stat and housing from studs.
6. Remove t-stat and put housing back on. Re-assemble everything and fill with distilled water.
7. Run at 1200 rpm's for 3 to 5 minutes and drain as described in step 4.
8. Repeat 4 to 5 times or untill water coming at is as clear as water going in.
9. Install t-stat using new O ring. I used vaseline to hold the O ring in place.
10. After everything is re-assembled fill with a 50/50 mix of Ford premium gold or Zerex GO-5.
11. Start engine and check for leaks. This is a lot easier and quicker than it sounds. If you don't remove t-stat then you have to run truck between each flush till t-stat fully opens and then let cool down to work on it.
Highly recommend installing coolant filter kit while cooling syatem is empty. fficeffice" /><O></O>
<O></O>
1. Drain coolant
2. Add 2 cans of VC-9 and top off with distilled water.
3. Drive 20 to 30 miles, preferably at highway speeds.
4. Drain radiator at petcock first, then pull lower hose. Then remove block plug on driver side. Not necesary to do passenger side.
5. Remove t-stat. To do this, remove air cleaner. Then 2 nuts on t-stat housing. Pry press. sensor bracket off of studs. Tight fit but it will move. Remove 2 more nuts and pull t-stat and housing from studs.
6. Remove t-stat and put housing back on. Re-assemble everything and fill with distilled water.
7. Run at 1200 rpm's for 3 to 5 minutes and drain as described in step 4.
8. Repeat 4 to 5 times or untill water coming at is as clear as water going in.
9. Install t-stat using new O ring. I used vaseline to hold the O ring in place.
10. After everything is re-assembled fill with a 50/50 mix of Ford premium gold or Zerex GO-5.
11. Start engine and check for leaks. This is a lot easier and quicker than it sounds. If you don't remove t-stat then you have to run truck between each flush till t-stat fully opens and then let cool down to work on it.
Highly recommend installing coolant filter kit while cooling syatem is empty. ffice
ffice" /><O></O><O
></O>Stupid question. Why is it not necessary to pull the passanger side drain plug?
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Elder User
Joined: Jul 2009
Posts: 919
Likes: 0
From: Smiths Grove, KY
You don't necessarily have to drain the coolant to install the filter. If you decide not to flush simply drain out some coolant and then add it back when the filter is installed. You will loose very little coolant during the process.
Elder User
Joined: Mar 2009
Posts: 534
Likes: 0
From: Oregon
Here is how to do the coolant change with or without pulling the T-stat and VC-9.
It is a compilation of the bestways.
https://www.ford-trucks.com/forums/9...nge-101-a.html
It is a compilation of the bestways.
https://www.ford-trucks.com/forums/9...nge-101-a.html
Hotshot
Joined: Jul 2005
Posts: 13,834
Likes: 25
From: Middle Tn.
For what little you gain it is not worth dropping the starter. Five flushes will get it done.
