Where the upper radiator hose connects to the engine, you will find the thermostat housing. The thermostat is located under this housing. Usually is domed shaped.
The thermostat on a 1991 Buick Skylark is located near the engine. To find the thermostat, follow the top radiator hose directly to the thermostat.
sounds like yours is broken.1 thermostat and 1 o-ring or gasket
the thermostat is located where the top hose of your radiator goes to the engine block under the aluminum housing. best resource for changing the the Hayes manuel for that year. cheap and good resource for anything YOU can do yourself
On a 1993 Buick Skylark, the thermostat is located in the engine's coolant outlet housing, which is typically found at the engine's front, near the water pump. To access it, you'll need to remove the upper radiator hose and the bolts securing the thermostat housing. Once removed, you can replace the thermostat itself. Always ensure the engine is cool before attempting to service the thermostat.
The thermostat on 4 cylinder, 2.3L Buick Skylark is on the bottom of the water pump. Remove the metal water line connected to the bottom of the water pump to find it. Remember the new O-ring with the new thermostat.
If your car is over heating you may want to check your thermostat and replace it may solve your over heating problems
Replace thermostat on 91 ford eacort
Get a flush kit at auto parts comes with adapters and instructions
Locate thermostat on 1996 Acura RL
You can find the 1991 Buick Skylark radiator drain plug on the bottom of the radiator. The radiator drain plug will be in the center of the radiator bottom.
From a small pipe connected from the top of the engine to a radiator hose.
owners manual