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  • Member
  • Member For: 17y 11m 14d
  • Gender: Male
  • Location: Brisbane

hey fellas,

just want some one to confirm this please. ta

1. disconnect lower radiator pipe and let coolant drain out.

2. Open over flow cap

3. reconnect lower radiator pipe fill overflow with water.

4. start car and crank the heater.

5. after a while turn engine off and disconnect lower radiator hose and drain coolant/water.

6. repeat steps 3,4,5 one more time.

7. add correct coolant to appropriate mix (im in bris so I'm assuming 33% glycol - would 50% be better)

8. add water to system and crank heater.

9. let system idle for a while to circulate new coolant.

I think this would work. I just want to get some of your opinions before I start.

is coolant bad for paint? if so, will I need to remove plastic thingy under front bumper?

thanks for your ideas. :spoton:

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https://www.fordxr6turbo.com/forum/topic/35902-coolant-system-flush/
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  • <put funny sh*t here>
  • Member
  • Member For: 18y 6m 8d
  • Gender: Male
  • Location: Perth, NOR

Im no expert, but heres how I did mine (very similar to your steps)

1. Unscrew drain plug in the bottom right corner of the radiator (on the airbox side at the bottom).

2. Open over flow cap and let it all drain out

3. screw drain plug back in and fill with distilled water.

4. start car and crank the heater and top up the water level if it drops.

5. after a while turn engine off and unplug the drain plug again and drain coolant/water (I let the engine cool down a bit first)

6. repeat steps 3,4,5 one more time - but I always let the engine cool down before adding cold distilled water back into the radiator.

7. add correct coolant to appropriate mix (I put about 40% in mine)

8. add water to system and crank heater.

9. let system idle for a while to circulate new coolant and top up as required.

  • <put funny sh*t here>
  • Member
  • Member For: 18y 6m 8d
  • Gender: Male
  • Location: Perth, NOR

Ive always used distilled water even for the flush. It might just be me being too fussy about it all, but im sure someone else will either confirm this or call me an idiot :)

Either way you use distilled water with the coolant in the end, and it only costs an extra $4 or so to use distilled water for the flush too.

  • Member
  • Member For: 18y 9d
  • Gender: Male
  • Location: Great Ocean Road

:spit:

  XF Falcon said:
Ive always used distilled water even for the flush. It might just be me being too fussy about it all, but im sure someone else will either confirm this or call me an idiot :)

Either way you use distilled water with the coolant in the end, and it only costs an extra $4 or so to use distilled water for the flush too.

Your right distilled is best

  • THE PSYCHO XRT
  • Donating Members
  • Member For: 19y 5m 8d
  • Gender: Not Telling
  • Location: At the lights!
  TBO240 said:
do you have to bleed the air out of the head like in the old xD-xfs

Yes!

I did it with mine. Let it bleed a little while after the fan kicks in, (thermostat opens), to allow coolant to circulate in the whole system.

  • <put funny sh*t here>
  • Member
  • Member For: 18y 6m 8d
  • Gender: Male
  • Location: Perth, NOR

I was told I didn't have to bleed the air on this car.. where is the little outlet which I have to loosen?

  • THE PSYCHO XRT
  • Donating Members
  • Member For: 19y 5m 8d
  • Gender: Not Telling
  • Location: At the lights!

U might be right, But it did it to be on the safe side anyway!

I just opened the cap on the reservoir tank.

I also started the car, ran it at about 2000rpm for 10 minutes for coolant to supply throughout the system and to purge air from the system.

  • <put funny sh*t here>
  • Member
  • Member For: 18y 6m 8d
  • Gender: Male
  • Location: Perth, NOR

Oh yeah I opened up the lid of the reservoir tank after it cooled down a little bit (after getting it to running temp, and having run the heater for 10 mins or so).

I was told that since the reservior tank is at the highest point then air does not get trapped elsewhere. So that's all we have to do I think.

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