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Hammer Time
Hammer Time, L1 Master Technician
Category: Car
Satisfied Customers: 4942
Experience:  ASE Mastertech with Adv level Engine performance cert.
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How do i change the thermostat in a 2000 pontiac grand am gt?

Customer Question

how do i change the thermostat in a 2000 pontiac grand am gt?
Submitted: 11 years ago.
Category: Car
Expert:  Hammer Time replied 11 years ago.

Removal Procedure

Caution: Refer to Battery Disconnect Caution in Service Precautions.








  1. Disconnect the negative battery cable.
  2. Drain and recover the coolant. Refer to Draining and Filling Cooling System.
  3. Remove the air cleaner assembly. Refer to Air Cleaner Assembly Replacement in Powertrain Management.
  4. Remove the surge tank line from the coolant outlet.
  5. Remove the coolant outlet to the inlet manifold attaching bolts.
  6. Remove the coolant outlet.
  7. Remove the thermostat.
  8. Clean the inlet manifold mating surfaces.
  9. Clean the coolant outlet mating surfaces.

Installation Procedure



  1. Install the thermostat in the inlet manifold.
  2. Install the coolant outlet to the inlet manifold. Notice: Refer to Fastener Notice in Service Precautions.
  3. Install the attaching bolts.



    • Tighten the bolts to 25 Nm (18 ft. lbs.).


  1. Install the air cleaner assembly. Refer to Air Cleaner Assembly Replacement in Powertrain Management.
  2. Install the surge tank line to the coolant outlet.
  3. Fill the engine with coolant. Refer to Draining and Filling Cooling System.
  4. Connect the negative battery cable.



    • Tighten the bolt to 16 Nm (12 ft. lbs.).


  1. Inspect the system for leaks. Refer to Cooling System Leak Testing.