How to do a Coolant Flush
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Postmaster
Joined: Jan 2004
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From: Kearney, Nebr
How to do a Coolant Flush
Alright guys, I preparing to put a new 203 thermostate in and do a coolant flush. What is the best/proper method way to do a flush? Any tips or tricks?
Senior User
Joined: Nov 2005
Posts: 206
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From: Folsom, Louisiana
well i would start by diconnecting the radiator, and pump sand in the motor through the water jacket, this will allow any rust buildup in the motor to be "sand blasted" away clearing it up... i would also say you should do the same to your oil, add just a bit, about 10 pounds, and that should help clean up and sludge that may have built up over the the life of the motor... let me know how it works for you !
PS... PLEASE DO NOT ATTEMPT, its a joke from this post...
https://www.ford-trucks.com/forums/6...one-wrong.html
PS... PLEASE DO NOT ATTEMPT, its a joke from this post...
https://www.ford-trucks.com/forums/6...one-wrong.html
Playing in the Dirt
Joined: Oct 2005
Posts: 2,302
Likes: 1
From: Southwest Georgia
I like to take off the radiator cap and then turn my truck upside down and shake it. O.K. just kidding, really I use a fire hose. No wait, here you go, enjoy: https://www.ford-trucks.com/forums/6...=coolant+flush
Post Fiend
Joined: Mar 2007
Posts: 9,010
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From: Johnson City, TN.
Fire hose 
yet another good one. I haven't read plow's link yet but drain the Rad and the two plugs on lower rear left and right side of motor. I think you need to remove the starter to get to one of them.
yet another good one. I haven't read plow's link yet but drain the Rad and the two plugs on lower rear left and right side of motor. I think you need to remove the starter to get to one of them.
Playing in the Dirt
Joined: Oct 2005
Posts: 2,302
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From: Southwest Georgia
Farm, don't forget to drain, flush and refill your blinker fluid. You wouldn't want the old stuff to freeze up on you and crack your blinker housing. LOL.
Too much time on my hands.
Too much time on my hands.
Post Fiend
Joined: Mar 2007
Posts: 9,010
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From: Johnson City, TN.
Hey here is an idea. Try a PSD makeover. I have plenty of that good ole' TN red clay around here. You can pack it in every hole in the motor sit it in the jacuzzi for 30 minutes. The put cucumber slices on each injector and get a turbo massage. Then reinstall. Crank over for 30 minutes and then wipe off the remaining clay that didn't get sucked in. Pressure wash the inside of the fuel tank so it is nice and clean ( kinda like a tank enema ) Refill with that new '08 fuel and let 'er rip. Let me know how much HP you get then. LOL
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Postmaster
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From: Kearney, Nebr
I think I'm gonna go with the T flush kit as I know my two lower plugs will be a pain and I don't want to touch the starter.
Can I just use tap water for a few days instead of the distilled?
Should I put my new T state in after the last flush?
Can I just use tap water for a few days instead of the distilled?
Should I put my new T state in after the last flush?
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Post Fiend
Joined: Apr 2004
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From: Silver Lake Dunes, MI
Here it what I do in all seriousness! (I leave for just a few hours and all craziness breaks loose!) Remove the upper hose, pull hte drain plug/petcock on the lower rad tank, pull the heater hose on the water pump. then I use a garden hose to flush the rad thru the upper hose out the drain and thermostat area. Also I pulled the driverside block drain. Then put the garden hose to the heater hose and pump lots of water thru that till it all runs clear. I usually use some compressed air to blow out as much water as I can. reinstalled everything and refill. When I did mine last week I started by adding a gallon of staight antifreeze for the plain water that was in there. then added 5 more gallons of mixed. I used 4 gallons of straight all together with one gallon of mixed coolant left over. I used Zerex G-05 with SCA's already in solution so I didn't need to add any of that.
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Joined: May 2007
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Originally Posted by FARM69
I think I'm gonna go with the T flush kit as I know my two lower plugs will be a pain and I don't want to touch the starter.
Can I just use tap water for a few days instead of the distilled?
Should I put my new T state in after the last flush?
Can I just use tap water for a few days instead of the distilled?
Should I put my new T state in after the last flush?
Postmaster
Joined: Aug 2004
Posts: 3,948
Likes: 2
From: SHELTON, WA
anyone running a tymar coolant filter on their truck? i almost bought one a few years back. and in all seriousness it catches the SAND that was used in casting and it would catch any extra that you wanted to add for the flush i guess
Hotshot
Joined: Oct 2003
Posts: 17,795
Likes: 99
From: Ashland City, TN
Distilled water doesn't nessarly cool better then tap water.
If your tap water is really dirty, go to the store and buy regular water.
The impurities in the water help hold heat.
I deal with this a lot in computers. They are always trying to find the best things to use. but in a computer you have to use distilled to keep air out of the system, and other things cause their pumps are sensitive, and you dont want things ubilding up on the heat syncs.
Anyways.
I use the prestone kit on my gasser, i'M sure it will work on the diesels also. It's kinda scary turning your truck on while a hose is blowing water into the motor though, but still kinda neat. Works great, i usually run my truck for a few minutes. 10-15 while it does this.
Cleans it out pretty good.
Useing good antifreeze is an important thing for a diesel I immagine. As for a gasser, not as important. =) I just buy the cheep stuff.
PS - dont forget a hand full of sand in your resiviour to filter the fluid.
If your tap water is really dirty, go to the store and buy regular water.
The impurities in the water help hold heat.
I deal with this a lot in computers. They are always trying to find the best things to use. but in a computer you have to use distilled to keep air out of the system, and other things cause their pumps are sensitive, and you dont want things ubilding up on the heat syncs.
Anyways.
I use the prestone kit on my gasser, i'M sure it will work on the diesels also. It's kinda scary turning your truck on while a hose is blowing water into the motor though, but still kinda neat. Works great, i usually run my truck for a few minutes. 10-15 while it does this.
Cleans it out pretty good.
Useing good antifreeze is an important thing for a diesel I immagine. As for a gasser, not as important. =) I just buy the cheep stuff.
PS - dont forget a hand full of sand in your resiviour to filter the fluid.
Post Fiend
Joined: Apr 2004
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From: Silver Lake Dunes, MI
Originally Posted by 1997F-350
anyone running a tymar coolant filter on their truck? i almost bought one a few years back. and in all seriousness it catches the SAND that was used in casting and it would catch any extra that you wanted to add for the flush i guess
Playing in the Dirt
Joined: Oct 2005
Posts: 2,302
Likes: 1
From: Southwest Georgia
Farm, I use the radiator flush. Just follow the directions on the bottle. Basiclly, drain the system, add water only and the flush, drive it for a day, then do the flush with the "T". Just my $.02.
TJ, you know how it gets with no adult supervision, game on.
TJ, you know how it gets with no adult supervision, game on.