I just replaced a new expansion tank the other one had a crack on the bottom. Yesterday I took off the water was full. And it was really a hot day also.I went a few places and the temp gauge was normal, everything was fine.I stopped by a friends house and as soon as I left there that gauge went up so fast I couldn't believe it I only got a couple of blocks and I shut it down. It was so hot I could hear boiling.I let it set for a long time put water in because it blew it out being so hot drove home and it was allright. Today I checked the fuses they seemed good.I checked the fan resistor on the bottom of fan shroud. It didn't have any burnt terminals and I checked the resistor for continuity and it had a reading.I looked at the oil for signs of moisture and the oil cap looked good.I even let it idle for a good 20 to 25 minutes today and it was fine. Maybe the cylinderhead temp sensor how do you check them, could that maybe be keeping the low speed fan from coming on it has twin fans?
Monday, June 3rd, 2013 AT 1:14 AM