Hi all, I have a 97 EVC with about 125,000 miles that has run a bit hot since I have been checking it. The Scanguage says the? operating temperature is closer to 200 and up to 210 or even 220 when pushed, higher then the 183-186 reading I had on the two previous Eurovans I? owned, though in both this Eurovan and previous ones the dash gauge has never shown anything abnormal since it is designed to stay at 'normal' between about 175-210.
Things I've done (and wanted to do anyway to refresh engine): new 80 degree C (176 F) thermostat, new 'crack' pipe and thermostat housing, new water pump, new coolant, new water temp sensor in water jacket, checked to make sure F18 coolant fan sensor in radiator was working correctly and fans turning on to low, medium and high speeds, replaced green resistors behind bumper and checked 2 50 amp fuses near relay block, swapped in new relay block, new radiator, and, since I was replacing the fuel injectors anyway, replaced the head gasket. No real change in temp readings. No CEL codes. I added a transmission oil cooler in front that keeps tranny temps down to 160s/170s. Might be related to coolant flow or radiator as when I turn up the heat to the heater core temp drops 10 degrees pretty quickly and generally stays down closer to 190-195. Also if I take out mechanical thermostat altogether it takes much longer to go to 210.? But new water pump and radiator have me scratching my head why that could be the case. Any ideas?
