Some of the tell tale signs are milky oil on the stick, a milky oil cap, oil in your anti freeze, or heavy white smoke upon start up. If you have none of these symptoms, it doesn't mean that your head gasket is bad. You will want to go the auto store and buy a block test kit. Here is a short video on how to do the test......................... https://www.youtube.com/watch?v=CHp5E7XnbXo
Search Toyota Camry Questions
Are you a UK consumer? CarGurus now has a discussion forum in the UK.
Toyota Camry Experts