Location of thermostat on 2005 chevy impala 3.4 liter

SOURCE: Thermostat on 2002 Chevy Impala

the best thing to get is the Haynes manual for your car at advanced auto or autozone or somewhere like that and the book will tell you how to take everything apart and put it back. i think the manual is about $16.00

SOURCE: how to change a thermostat on a 2003 chevy impala

http://www.autozone.com/shopping/repairGuide.htm?pageId=0900c152800a32d8

SOURCE: Where is the location of the knock sensor for a 2005 HD 2500 6.0

HAS TWO KNOCK SENSORS they are both under intake in valley of engine. remove intake and will see two black grommets they are under those best to replace both at same time

SOURCE: How do i change the Blower motor resistor on a 2005 chevy impala?

The blower motor resistor is located behind the glovebox mounted in the fan housing box under the dash.

SOURCE: how do you change the thermostat & refill the

Locate the thermostat. The thermostat is in a metal housing at the end of the radiator hose where it connects to the engine.

Drain enough coolant to make the water level below the the thermostat level so that the coolant doesn't spill everywhere...

Remove the thermostat:
The housing is held down by two bolts.
Remove the bolts, remove the thermostat and scrape the gasket and sealant from the housing and the manifold.

When replacing, use Permatex #2 - non-hardening gasket sealant.

Replenish the radiator with 50/50 coolant/water mixture (re-use what you took out; don't pour down drain or on grass - kills vegetation).

Remove radiator cap and let engine warm up (look for leaks) to allow trapped air in the cooling system to escape.
Note: there may be some burping valves near the thermostat. If obvious, open them to allow air to escape.

Hope this helps!