Uplander 3.5l replace the thermostat - 2006 Chevrolet Chevrolet Uplander

While there are a variety of reasons your Chevrolet Uplander is overheating, the most common 3 are a coolant leak (water pump, radiator, hose etc.), the radiator fan, or a failed thermostat. A more uncommon reason is your radiator is partially scaled up and under a heavier load, the cooling capacity is not sufficient.

This repair is tedious. You will find the thermostat housing located directly below the throttle body. It is tightly set between the engine block and exhaust crossover pipe. There are two bolts holding the housing in place. The lower housing bolt is the hardest one to remove so remove that one first. Any questions please write back. Good Luck.

Are you using an OEM thermostat ?

Most likely cause is a faulty actuator. It will need to be scanned to be certain.

Most likelty the thermostat is stuck open, so replace it.

this engine uses a timing chain, chains require no replacement unless the engine is being repaired or the chain or spockets fail

advanced auto sells manuals for each specific vehicle, and will aid you in every service possible step by step

Your thermstat should open around 193 degrees and your electric cooling fan will turn on around 212-213 degrees that is the operating range of your cooling system.Thermostat replacement schedule should be in your owners manual if not around 50,000-60,000 miles depending on driving conditions.

the thermostat is located in the housing attached to the intake on the reare of the engine just follow the upper radiator hose to the housing. please rate this

location of thermostat on chevy uplander 2006