if it is a four cyl it is most likely under the passenger side of the engine at the end of the bottom radiator hose it is best to take of the exhaust manifold to replace it is possible that it can overheating if it it bad I have a 1996 Grand Am SE, and mine runs hot too. Its probably not the thermostat, if not, then try flushing the coolant system, or the radiator might be clogged up.
Where is the thermostat located on my 2007 Pontiac g6
The thermostat is located near the intake on a 1999 Pontiac Grand Am GT. The thermostat can be located by following the upper radiator hose directly to the thermostat.
Where is the thermostat
thermostat is located under radiator cap!
check this site------>
in the water pump
Follow the upper radiator hose the the engine. The thermostat is located under the housing at the end of the hose.
Most thermostats are located in the thermostat housing which is at the lower end of the large top radiator hose.
The 1999 Pontiac Bonneville thermostat is located on the front of the engine, near the bottom. You can follow the top radiator hose from the radiator to the thermostat housing.
under the throttle body
It is in the lower radiator hose
Assuming you have the 2.2, 4 cylinder engine, the thermostat is located on the side of the engine that faces the firewall.