|
Are the rad fans coming on and staying on all the time? It's quite rare for a thermostat to fail in the open positions in my experience unless the spring has broken. Can you plug it into a diagnostic reader with live data on it? Presuming it's a K-series it has 2 different coolant temp sensors on it one sends info to the ECU and will turn on the fans and the other is for the gauge on the dash. That might be acting up abit
|