I am having some intermediate heating issues with my 03 SE. I have narrowed it down to the heater core, bad smell of coolant in the cab, foggy windows, lack of heat. I just replaced the thermostat today, and I know that is not it. I have replaced one before in other GM cars, but not in a Bonnie. I have a manual and it gives half *** instruction. I am looking for some guidance, or some pics that show me how to get this done. I have this car for sale is anyone is looking. Here is a link to my craigslist ad.
2003 Pontiac Bonneville SE