Change thermastat in 2002 pontiac montana 3400sv
How to change step by step
1. Loosen and remove the thermostat housing bolts. 2. Gently pry open the housing to expose the thermostat noting the top-to-bottom orientation. 3. Remove the old thermostat. 4.Scrape the mounting flange taking care not to have any scrapings go into the housing. 5. Install a new gasket and the new thermostat in the same orientation as the one you removed. 6. Install the housing mounting bolts and tighten. 7.Start the car and check for leaks.