Hi all.
I have a 1994 Caravan with 125k miles and the original radiator. It has been flushed and filled every 2 years.
Recently, I have noticed that just after the van warms up and I am sitting at a traffic light, I can wisps of steam/smoke that seem to be coming from the radiator. I have pulled over to check under the hood, but by that time, the steam has stopped. It usually lasts only for a couple of minutes and then stops and does not happen again until after the engine is stopped, cools off and is restarted.
It is most noticeable when it is raining or on a cool morning. I am wondering if some moisture may be accumulating somewhere on the radiator and then condensing once the radiator heats up.
Like I said, the steam is only visible shortly after startup. Things are fine for the rest of the drive.
Does this indicate a problem with the radiator or possibly the thermostat?
Thanks.
Colin.