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WilliamGray · 02-06-2022, 07:17 PM

Hey everyone! I have been fighting this issue for over 6 months now, and thought I would give this a shot. Its hard to explain but i'll try!

Background:
On my 2011 Camaro LS v6, the coolant temperature has randomly been overheating. Every time I go on long trips, no issue. But for some reason only sometimes, whenever I am driving around town (including stop and go traffic), the coolant will get way too high. I have to monitor it constantly. Today I was driving, and it was fine until a mile from my home, the coolant rose to 247*. It doesn't seem to be a sudden jump either. If my car is working right, it never really gets above 210*, and the fans kick on. However, the dual fans have not been kicking on whenever the temp rises - again this is randomly happening. If i run the AC full blast, the fans kick on, but only at a low output, not the hi output that typically runs whenever the coolant temp gets hot.

What I've tried so far:
I have replaced the T-stat and housing assembly, water pump, radiator coolant cap, have bled the coolant hose bubbles mutliple times, and have bought a temperature gun and verified that my engine is indeed getting too hot.

Right now my suspicion is something to do with the fans not kicking on. I have bought two new relays for the cooling fan Hi and Low. And have also bought a new Engine Coolant Sensor that I will replace soon.

Just wondering if anyone else has had any issues like this (where it is random and not constant), and if you would have any other suggestions!

02-06-2022, 07:17 PM	#1
WilliamGray Drives: Charcoal Gray, SS Rims Join Date: Dec 2016 Location: Indiana Posts: 10	Mystery Coolant Issue - Overheating V6 Hey everyone! I have been fighting this issue for over 6 months now, and thought I would give this a shot. Its hard to explain but i'll try! Background: On my 2011 Camaro LS v6, the coolant temperature has randomly been overheating. Every time I go on long trips, no issue. But for some reason only sometimes, whenever I am driving around town (including stop and go traffic), the coolant will get way too high. I have to monitor it constantly. Today I was driving, and it was fine until a mile from my home, the coolant rose to 247. It doesn't seem to be a sudden jump either. If my car is working right, it never really gets above 210, and the fans kick on. However, the dual fans have not been kicking on whenever the temp rises - again this is randomly happening. If i run the AC full blast, the fans kick on, but only at a low output, not the hi output that typically runs whenever the coolant temp gets hot. What I've tried so far: I have replaced the T-stat and housing assembly, water pump, radiator coolant cap, have bled the coolant hose bubbles mutliple times, and have bought a temperature gun and verified that my engine is indeed getting too hot. Right now my suspicion is something to do with the fans not kicking on. I have bought two new relays for the cooling fan Hi and Low. And have also bought a new Engine Coolant Sensor that I will replace soon. Just wondering if anyone else has had any issues like this (where it is random and not constant), and if you would have any other suggestions!