Chevrolet Repair Questions? Ask a Chevy Mechanic for Answers ASAP
HelloCustomer it is tucked kind of behind the exhaust manifold at the back side of engine, here is instructions to replace it:
Engine Coolant Thermostat Replacement (2.2L - L61) Removal Procedure
Notice: Refer to Fastener Notice in the Preface section.
Tighten Tighten the thermostat housing to water pump feed pipe bolt to 10 N·m (89 lb in).