Replaced my heater hoses in the same way described above. Special fitting as described. Silicone really helps, don't be stingy. Installed a manual shut of valve after solenoid valve. Easy to reach for cool weather. Sometimes driving an a gremlin would open the valve and heat the interior. Also in one of the FCA notes: Installed an A/C compressor on/off switch so the blower lets in outside air. I leave my temp. control on full cold all the time. The TR climate control can be fussy sometimes!