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Tim's Auto Repair
Tim's Auto Repair, mechanic
Category: Chevy
Satisfied Customers: 15816
Experience:  Have owned a repair shop for 25 yrs.
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How do you get to the thermostat in a Chevy Uplander van?

Customer Question

How do you get to the thermostat in a Chevy Uplander van?
Submitted: 6 years ago.
Category: Chevy
Expert:  Tim's Auto Repair replied 6 years ago.

hi

what is the engine size?

Expert:  Tim's Auto Repair replied 6 years ago.

this may help you

thanks

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Montana SV6 (2006), Relay, Terraza, Uplander (2005-2007)

Removal & Installation

  • 3.5L ENGINE
  • 3.9L ENGINE

 

3.5L Engine

 

  1. Before servicing the vehicle, refer to the Precautions Section.
  2. Remove the air cleaner intake duct.
  3. Partially drain the cooling system.
  4. Remove the radiator inlet hose from the thermostat housing.
  5. Remove the thermostat housing bolts.
  6. Remove the thermostat.
  7. Clean and inspect the thermostat housing gasket mating surfaces.

 

To install:

  1. Install the thermostat.
  2. Install the thermostat housing.
  3. Install the thermostat housing bolts and tighten to 18 ft. lbs. (25 Nm).
  4. Install the radiator inlet hose to the thermostat housing.
  5. Install the air cleaner intake duct.
  6. Fill the cooling system.
  7. Start the engine and check for leaks.

 

3.9L Engine

 

  1. Before servicing the vehicle, refer to the Precautions Section.
  2. Drain the cooling system.
  3. Release the tension on the hose clamp at the thermostat housing and remove coolant hose.
  4. Remove the thermostat housing mounting bolts and remove the thermostat housing.

  5. FIG : Remove the thermostat housing to access the thermostat-3.9L engine shown

    image

  6. Remove the thermostat.
  7. To install:

    1. Install the thermostat.
    2. Install the thermostat housing and tighten the bolts to 18 ft. lbs. (25 Nm).
    3. Install the coolant hose to the thermostat housing and install the hose clamp.
    4. Refill the cooling system to the correct level.
    5. Start the engine and check for leaks.

 

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