I did the heater core bypass a few summers ago. I will be restoring it to original when i get the chance. I can see if i can take pictures of it tomorrow oh and my car is stick. The amount of coolant going to the heater core is very little. As for the engine fan, even on hot days mine hardly activa...

do you know some good OEM ones? People fit XC90 ATF coolers in with minimal efforts. I have just a generic Hayden ATF cooler in line with heat exchanger and no thermostat, it works well. 1.jpg I see, just consult with my local volvo specialist, these things worn out the seals faster, and could be t...

vtl wrote: ↑15 May 2025, 05:00 Go ahead. And add extra transmission cooler. May bypass heater exchanger in radiator altogether.

do you know some good OEM ones?

I would imagine it would be negligible, since when you do not use the fan to blow on the heater core, it already saturates with heat and I doubt the small surface area with just radiation alone could affect temps in any positive matter. What would be better for temps is installing a second fan behi...

Hi all, in tropical area where I live, is there any potential problem if we delete the heater core permanently? would cooling capacity decrease for the engine & tranny?

Thank you in advance