Last April my van overheated it was the thermostat. I did an overhaul and replaced all the tubes, water pump, temperature sensor, sending unit, and thermostat. After this it was still overheating and I noticed I had bubbles in my overflow tank. I changed the head gaskets the bubbles went away and it seemed to be doing better for about a day.
The van was still getting hot 200°f-250°f. I could run the heater and it would cool down fairly easily and it seemed to heat up the most at highway speeds so this lead me to believe it was also a clogged radiator. This last weekend I put in a new radiator and thermostat (to be safe) and I am having The same issues.
The van operates at highway speeds at 203°f at a 60° ambient air temperature and 212° At 90° ambient air temp. At road speeds (35-45 mph) 198°f at both 60° and 90° ambient air temperature. My father in law is insistent that you cannot mix max strength dex-cool and distilled water 50/50 when adding new coolant. Which is what I did after changing my head gaskets. Is this the case and do I just need to get my system flushed and refilled to fix this issue?
Anything helps, thanks.
Friday, August 21st, 2020 AT 11:47 AM
(Merged)