2021 Roush IC circuit operation.

[Robottrainer]

I could actually see the water movement in my tank..It must be in the program that mine runs with the car on accessory or when the door opens. When i shut the car off it still runs for about 2 minutes as well.

See if you can get into this link

Maybe they changed something in 2021. I know the pump connects to the IMRC control on mine. Maybe that has to have the engine running to activate.

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[Autopart101]

The because I have to know file. So driving around yesterday I noticed by IAT2 around 118-124 degrees. As soon as I stop at a light it jumps to 140. Ait temps around 80 degrees. Start moving it drops back down. When I got home I let it sit in the garage it get up to 159.. I turned the fan on and idling it held at that temp.

So this morning I took a look at the flow. Being a bypass system, you can't see it flow. I tried to pinch off the hose but you can't get in there to do it. What I noticed is it seems the pump doesn't come on unless the throttle is open. Is this correct.? With the fan off, idling, the IATs hold steady. Fan comes on, holds steady. Give it some throttle, the IATs drop 10 to 20 degrees.

So what is the operating criteria of this system? It seems to be working but it appears certain conditions need to be met for the pump to come on.

When my car did not have an Interchiller. I would see 30-40 degrees above ambient temps in the summer months. They would drop 15-20 degrees while moving. During a pull 140+ was the norm. Tune pulls timing at 140. FYI just a dyno pull in 6th gear showed IATs rise to 138 when stock.