2001 Chevy Malibu thermostat

Tiny
BTMJAP
  • MEMBER
  • 2001 CHEVROLET MALIBU
  • 6 CYL
  • FWD
  • AUTOMATIC
  • 120,000 MILES
How do I change the thermostat on a 2110 malibu?
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Tuesday, January 19th, 2010 AT 12:32 PM

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Tiny
ERNEST CLARK
  • EXPERT
Is your Malibu a 2001, or a 2010???

Here are the procedures for the engines installed in 2001's. If this isn't your engine, let me know and I'll look it up again.

Also, if I've helped you, please vote for me, as I depend on this to pay my bills. Thanx, Ernest.


http://www.2carpros.com/forum/automotive_pictures/455169_ThermostatMalibu_1.jpg

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Saturday, January 23rd, 2010 AT 8:45 PM
Tiny
ERNEST CLARK
  • EXPERT
Sorry, that procedure didn't upload correctly. So I sent the procedure without the pictures. Again, sorry.

Drain the cooling system.

Remove the thermostat housing to water pump feed pipe bolts.

Remove the thermostat housing to water pump feed pipe.

Remove the thermostat and retaining sleeve, noting orientation for installation.

To install:

Install the thermostat and retaining sleeve with the dimple placed into the housing slot.
NOTE
Lubricate the O-rings with coolant only.

Install the thermostat housing to water pump feed pipe.

Install the thermostat housing to water pump feed pipe bolt, and tighten the bolt to 89 lb inches (10 Nm).

Fill the cooling system.

Before servicing the vehicle, refer to the Precautions Section.

Drain the cooling system.

Remove the thermostat housing to water pump feed pipe bolts.

Remove the thermostat housing to water pump feed pipe.

Remove the thermostat and retaining sleeve, noting orientation for installation.

To install:

Install the thermostat and retaining sleeve with the dimple placed into the housing slot.
NOTE
Lubricate the O-rings with coolant only.

Install the thermostat housing to water pump feed pipe.

Install the thermostat housing to water pump feed pipe bolt, and tighten the bolt to 89 lb inches (10 Nm).

Fill the cooling system.

3.1L Engines

Remove the thermostat housing.

Remove the thermostat.

Clean the mating surfaces.

To install:

Install the thermostat.

Install the thermostat housing.

Inspect the system for leaks.

3.5L (LX9) Engine

Before servicing the vehicle, refer to the Precautions Section.

Remove the air cleaner intake duct.

Partially drain the cooling system.

Use the special tool J38185 in order to reposition the hose clamp from the water outlet housing.

Remove the radiator inlet hose from the water outlet housing.

Remove the water outlet housing bolts.

Remove the water outlet housing.

Remove the thermostat.

Clean and inspect the water outlet housing gasket mating surfaces.

To install:

Install the thermostat.

Install the water outlet housing.

Install the water outlet housing bolts, and tighten the bolts to 18 ft. Lbs. (25 Nm).

Install the radiator inlet hose to the water outlet housing.

Use the special tool J38185 in order to reposition and install the hose clamp to the water outlet housing.

Install the air cleaner intake duct.

Fill the cooling system.

3.5L (LZ4) & 3.9L (LZ9) Engines

Before servicing the vehicle, refer to the Precautions Section.

Drain the cooling system.

Remove the air cleaner outlet duct.

Reposition the radiator outlet hose clamp at the thermostat housing.

Remove the radiator outlet hose from the thermostat housing.

Remove the thermostat housing bolt and stud.

Remove the thermostat housing and gasket.

Remove the thermostat.

Clean the gasket surfaces.

To install:

Install a new thermostat.

Position a new gasket and the thermostat housing to the engine block.

Install the thermostat housing bolt and stud. Tighten the bolt and stud to 18 ft. Lbs. (25 Nm).

Install the radiator outlet hose to the thermostat housing.

Position the radiator outlet hose clamp at the thermostat housing.

Install the air cleaner outlet duct.

Fill and bleed the cooling system.

Inspect the system for leaks.

3.5L Engine

Remove the air cleaner intake duct.

Partially drain the cooling system.

Use the special tool J38185 in order to reposition the hose clamp from the water outlet housing.

Remove the radiator inlet hose from the water outlet housing.

Remove the water outlet housing bolts.

Remove the water outlet housing.

Remove the thermostat.

Clean and inspect the water outlet housing gasket mating surfaces.

To install:

Install the thermostat.

Install the water outlet housing.

Install the water outlet housing bolts, and tighten the bolts to 18 ft. Lbs. (25 Nm).

Install the radiator inlet hose to the water outlet housing.

Use the special tool J38185 in order to reposition and install the hose clamp to the water outlet housing.

Install the air cleaner intake duct.

Fill the cooling system.
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Saturday, January 23rd, 2010 AT 8:49 PM

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