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Really mild AC.

took a look at mine..2019 6.4 PowerWagon.
The flow goes into the heater core and out to the oil cooler, had thought about the hack just to see if the already okay AC would get any colder…nope, not doing it. I really don’t drive this one much in Summer anyway.
 
If the coolant flow to the oil cooler is being blocked by these valves that’s not good.

However, adding valves and a line to create a bypass of the heater core while maintaining coolant flow to the oil cooler then it would be okay.
 
Poolmonkey said:
took a look at mine..2019 6.4 PowerWagon.
The flow goes into the heater core and out to the oil cooler, had thought about the hack just to see if the already okay AC would get any colder…nope, not doing it. I really don’t drive this one much in Summer anyway.
Click to expand...
Not trying to change your mind but the flow is opposite of what you are thinking, the water pumps are actually suction not pushing.
 
DammitDave said:
Not trying to change your mind but the flow is opposite of what you are thinking, the water pumps are actually suction not pushing.
Click to expand...

Well..pushing or pulling, the core and oil cooler at least seem to be in the same “circuit” or manifold on the Hemi…I don’t want to block it.
 
Poolmonkey said:
Well..pushing or pulling, the core and oil cooler at least seem to be in the same “circuit” or manifold on the Hemi…I don’t want to block it.
Click to expand...

I posted on the other thread questioning this same thing. I saw that the heater core circuit on my 6.4 included the oil cooler. Looks as if it would require more elaborate plumbing than the Muzzy mod. I am with you, gonna leave it alone.


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NC Ram said:
I posted on the other thread questioning this same thing. I saw that the heater core circuit on my 6.4 included the oil cooler. Looks as if it would require more elaborate plumbing than the Muzzy mod. I am with you, gonna leave it alone.
Click to expand...
I replied to your post over in the other thread. Maybe someone with a lot more knowledge than me will confirm what I am thinking about the 6.4 oil cooler location being different than the 6.7?
 
maybe can add a resistor to the thermostate (thermister?) sensor to trick it into thinking its not cool enough. This causes the AC compressor to run longer or more often. Ive done it to my tacoma and wrangler and it made a huge difference.

edit: found a youtube video of said mod done to a tacoma
 
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