how to change a thermostat in a 2005 Buick Lacrosse with a 3.8 V6 engine
Jan 24, 2011 at 8:24 PM
Repair Safety Notice:
This information is for general instructional purposes only. Vehicle repair can be dangerous.
Verify all information, follow manufacturer service procedures, use proper tools and safety equipment,
and consult a qualified repair shop when needed.
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RASMATAZ
CAR REPAIR CONTRIBUTOR
75,992 POSTS
You must start by draining the coolant from the engine, Here is a guide and a diagram to help you get the thermostat replaced.