It is always better to use a water antifreeze mix because of the corrosion inhibitors in the anti freeze. Check that the cooling system hasn't got an airlock after changing the thermostat, make sure thermostat isn't upside down. Often get an airlock in the heating part of the water system, there should be a bleed screw in the engine compartment between the engine and the heater unit. Air locks are a common problem when refilling the cooling system and will lead to overheating as prevents proper circulation.
Just had mine replaced. Its in the gas tank. Expensive Part and labor? $250.00- $400.00
do you have a engine diagram for a 1994 grandam focusing on water outlet restrictor
have you checked the timming?
grand am
Same thing happened to me on a 94 Grand Am. Try changing the reservoir cap.
It can break with out warning.
There is not one
can you put a turbo on a grandam gt
Probably your alternator.
You add refrigerant through the low side port. There is a web site www.idqusa.com that will tell you were the port is located on a 96 grandam, along with much more helpfull information.
Bottom of the engine on the oil pan.
looks like 2 years and 2 letters is the only difference. GT stands for grand touring and SE stands for single exhaust.