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Re: 2017 FORD SUPER DUTY NOT COLD AT IDLE
Posted to HVAC Forum on 8/17/2023

you might end up having to bypass the heater core (loop the hoses together with a 'horseshoe' fitting) to get the temps a few degrees cooler; asking it to to cool at idle in the temps we have been seeing lately is a pretty big ask.

Here in sunny Florida, I'v... Login to read more.