1999 Pontiac Bonneville SE overheated

2001 Pontiac Boneville

Check engine light starts flashing

I’m stranded on the side of Interstate 5 in Northern California. I was traveling at about 70 mph and all of a sudden I lost power and my check engine light starts flashing then it overheated and I stalled out. After it cooled off but won’t start even jumped the battery. Removed the spark plugs to check for water in the cylinders. There was water in 3 cylinders so I removed the spark plugs one at a time and then started the car to blow out the water. About 3 weeks ago had the oil changed but now the oil smells burnt but there isn’t any water in the oil.

You are experiencing all the classic symptoms of a blown head gasket or intake gasket.