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Modular V10 (6.8l)  
View Poll Results: Which Coolant to use or not to use?
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Coolant recommendations

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Old May 25, 2016 | 02:19 PM
  #16  
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From: Kent Station, WA
Originally Posted by Mike189677
I would just do a water flush thats what I did with good results. Seeing your post about thermostats from last year, v10's come with a 185° instead of the 192°. There are also 180° never tried one of those but I would have to assume that those would run about 185° in a v10 from what I have seen which is a bit cool I think. I put 192° in when I did the coolant flush and it would run 200°-202° empty on flat ground too hot for my liking. I tried couple other 190° motorcraft and stant tstats with the same results. Then found the right tstat motorcraft rt-1195 it is a 185° just like what came in it. Truck runs right at 190° now.
I run 186° on the cool side, 190° average and as hot as 198-200° on the hot side with old green coolant. I may grab a thermostat and cap for when I do the flush. Distilled flush sounds good, Thanks. Plus it is easy to find with a Winco near by.

Originally Posted by Krewat
Unless you have a lot of crud built up in the system, I wouldn't use a chemical flush. No need. On the other hand if there IS a lot of crud, loosening it all up might not be good either

There, did that help?


Originally Posted by JWA
Clear as mud, thanks sooooooooooooo much for all that!
 
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Old May 25, 2016 | 03:28 PM
  #17  
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Originally Posted by Bently_Coop
I run 186° on the cool side, 190° average and as hot as 198-200° on the hot side with old green coolant. I may grab a thermostat and cap for when I do the flush. Distilled flush sounds good, Thanks. Plus it is easy to find with a Winco near by.
Sounds like a plan I ended up putting a whole new degas bottle in the neglected ford gold made a crusty mess of mine couldn't even see in it. I'd do a thermostat while you have it drained.
 
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Old May 27, 2016 | 12:30 AM
  #18  
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Originally Posted by Mike189677
Sounds like a plan I ended up putting a whole new degas bottle in the neglected ford gold made a crusty mess of mine couldn't even see in it. I'd do a thermostat while you have it drained.
I may end up just grabbing the bottle and thermostat at the same time. I was going to just grab a cap but hopefully Horizon Ford will have it all.
 
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Old Jul 11, 2016 | 12:02 AM
  #19  
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Another piece to the puzzle. My 99 does not have the transmission cooler in the radiator. Ordering the thermostat, cap, coolant and transmission hard lines this week. Flush on Friday-Saturday me thinks.

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Old Jul 15, 2016 | 12:43 AM
  #20  
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Last few bits arrived, waiting on one more transmission cooler line. My truck does not have the OTW cooler like the mid 2000 and later trucks.

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The Ford gold bottle says concentrate do I need to mix with distilled water or pour straight in?

TIA
 
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Old Jul 15, 2016 | 01:50 AM
  #21  
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Just pour it in when your done flushing. You will already have the water in the truck.
 
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Old Jul 16, 2016 | 11:56 PM
  #22  
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Finished everything up today. Had to make a small parts run for a couple extra quarts of ATF and a 3/8" barbed fitting since I was removing a tube and fin cooler installed by a P.O. I went through ten gallons of distilled water for flushing with the thermostat removed, worked fairly well. Probably could have flushed one more time though. I boiled the new thermostat prior to install verifying it worked, still waited until 220° on my livewire before opening though. I don't have the clips for my new transmission lines so I improvised with some zip-ties.

Edit: looks like I never took a picture of the transmission outlet to radiator. P/N: YC3Z-7A031-AA.

Tube and fin prior to removal their was 4 of those plastic squares hence the fins being jacked up.

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Radiator removed and installing transmission lines, the line from transmission to radiator is a pain in the but.

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Another angle

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3/8" fitting

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3/8 barbed fitting installed on return line

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Thermostat boiled prior to install.

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Transmission lines with custom zip-ties. I did trim the tails too.

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Difference in caps. Pictures cap is newer. Sorry can't get it to rotate.

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