How to Add Coolant: Pontiac Solstice (2006-2009) - 2007 Click to view0:15See how to add engine coolant (antifreeze) to a 2007 Pontiac Solstice 2 4 Cyl. This free video also shows you how to mix the coolant with water on a 2007 Pontiac Solstice 2 4 Cyl.Author: Honda City DDMWorks - LNF Coolant Refill on Ecotec Engines - YouTube Click to view on Bing10:25This "how-to" walks you though how to get the air out of the cooling system on the Ecotec 2, 2 and 2. The video walks through the entire procedure, if you do have any other questionsAuthor: DDMWorksViews: 53K Coolant temperature sensor on a Pontiac solstice - YouTube Click to view on Bing2:2106 Pontiac solstice coolant temperature sensor. PO128 2006 Pontiac G6 GTP 3 V6 PT1 Diagnosis & Replace Coolant Temp Sensor/Fan Switch Retest - Duration: 11:27. Keith & Kevin's RepairAuthor: Suave DorsettViews: 8 Pontiac Solstice Questions - The coolant light comes on if What would be the normal coolant temperature on a Pontiac Solstice? 7 Answers. Finally figured out how to check the temperature on my Solstice. Was ranging from 190 to 207. Is this normal? Pontiac Solstice-Maintenance & Repair. I hit a bump yesterday and the check engine light came on.