One problem related to vehicle overheat has been reported for the 1999 Chevrolet Venture. The most recently reported issues are listed below.
Dexcool antifreeze deteriorated my intake gaskets of my 99 chevy Venture, sludged up my engine and caused my car to overheat and leak dexcool continuously. The dealer just told me sorry but it will be about 1500 to 2000 to repair. That antifreeze was supposed to be never changed and work until 150k miles. My van is a leaking reliability problem that could strand us on the road because of the dex cool they put in the factory. There will be a recall if you investigate this. The problem is all over the web and there is a class action suit about it in California. It affects hundreds of thousands of people.