My Chevy impala 2004 which was running perfectly in summers suddenly has started heating up to full gauge as winters started and I turned on heaters.
At first I thought it is due to radiator leak. Once I found the jug full but no coolant in radiator. Checked at a workshop for leak but no leakage found. Twice this happened that there was nothing in radiator and jug was full. I put some coolant in radiator.
Nothing improved. Car heats up as soon as u start driving even if there is coolant in radiator and jug. Fans working fine.
Strange thing is that car starts cooling down as I press full gas and Accelerate sharply. Even at fast but constant speed car heats up. Then I have to put it in neutral while running and pump full gas and it starts cooling but heats up again as I start normal driving or stop At signals.
I do feel there is some drop in radiator level but nothing seems dripping and parking is dry.
Someone told me it might be radiator cap and thermostat issue but really I don't see signs of leakage.
Monday, November 26th, 2012 AT 6:53 PM