I Did an Coolant flush and use restore and vc-9 and changing to red coolant, I couldn't get out the Thermostat because of the return fuel. I could not get it lose. So I did a 3 day 21 gallon distill water flush. This morning the coolant temp on my Scangage is read 166 to 170 ECT and EOT around 200. before the change my ECT was 188-194 most and EOT 208 a 20 deg delta. During the water flashing ECT and EOT show 188 & 198.
So is my ECT senser going bad with today low reading.
So is my ECT senser going bad with today low reading.