So, I was driving around the other night, and when I was stopped at a red light, my coolant light/alarm came on, and then went off after about 5 sec. I pulled into a parking lot to check things out. The overflow tank was full, and I could see coolant in the water pump. It's never done this before, and it seems a little strange. It happened just as the car was getting warmed up. Does anyone know what might cause this?

Cheers,
Dale

 

add coolant.

if it continues then you have a problem.

 

Hows it looking at the filler neck? The buzzer comes on when the coolant level drops below the sensor.

If the coolant level is ok then it suggests you have a dodgy sensor or connection.

 

I could see it in the filler neck. maybe a couple inches down. how deep is the sensor?

Thanks,
Dale

 

In this piccy:



Its the bit with the wire 2.5" - 3" from the top of the filler neck.

Keep your eye on it, when mine started doing it I later discovered it was a knackered turbo coolant hose. That would leak once the car got warm.

Hopefully it was just an air bubble working its way out of the system and nothing else