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Bob, Auto Service Technician
Category: Car
Satisfied Customers: 4087
Experience:  40 year GM Tech. +30 Certified. ASE Master Tech.(expired, retired) Medium Duty, Heavy Line, Retired
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where is the thermostat on a 2000 pontiac grand am 4 cyl

Customer Question

took the radiator hose of the engine and all there was was a rubber gasket
Submitted: 9 years ago.
Category: Car
Expert:  Bob replied 9 years ago.

Hi, Just so you know going in, these are not easy to do and are not for the mechanically challenged. So, be sure you are up to the task. I have no idea as to your ability, so thought I should mention that just in case. The information on location and how to replace the thermostat is copied below for you from the Pontiac service manual. Thanks, Bob

Document ID# XXXXX
2000 Pontiac Grand Am


Engine Coolant Thermostat Replacement (2.4 L)

Removal Procedure

    Caution: Unless directed otherwise, the ignition and start switch must be in the OFF or LOCK position, and all electrical loads must be OFF before servicing any electrical component. Disconnect the negative battery cable to prevent an electrical spark should a tool or equipment come in contact with an exposed electrical terminal. Failure to follow these precautions may result in personal injury and/or damage to the vehicle or its components.

    Notice: When adding coolant, it is important that you use GM Goodwrench DEX-COOLTM coolant. If coolant other than DEX-COOLTM is added to the system, the engine coolant will require change sooner: at 50 000 km (30,000 miles) or 24 months.

  1. Disconnect the negative battery cable.
  2. Drain and recover the coolant.
  3. Remove the exhaust manifold heat shield.
    Object Number: 181844  Size: LH

  4. Remove the coolant inlet housing bolts through the exhaust manifold.
  5. Raise the vehicle.
  6. Remove the coolant inlet housing stud from the oil pan.
  7. Remove the tire and wheel assembly.
  8. Remove the splash shield.
  9. Remove the bolts from the transaxle-to-engine block brace. Remove the brace.
  10. Remove the coolant housing pipe.
  11. Remove the thermostat.
  12. Clean the mating surfaces.

Installation Procedure

    Object Number: 181844  Size: LH

  1. Install the thermostat.
  2. Install the coolant housing pipe.
  3. Install the transaxle-to-engine block brace and secure with the bolts.
  4. Install the splash shield.
  5. Install the tire and wheel assembly.
  6. Install the gasket.

    Notice: Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Fasteners requiring replacement or fasteners requiring the use of thread locking compound or sealant are identified in the service procedure. Do not use paints, lubricants, or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These coatings affect fastener torque and joint clamping force and may damage the fastener. Use the correct tightening sequence and specifications when installing fasteners in order to avoid damage to parts and systems.

  7. Install the coolant inlet housing stud to the oil pan.

    Tighten the bolt to 26 N·m (19 lb ft).

  8. Lower the vehicle.
  9. Install the coolant inlet housing bolts through the exhaust manifold.

    Tighten the bolt to 14 N·m (124 lb in).

  10. Install the exhaust manifold heat shield.
  11. Fill the cooling system.
  12. Connect the negative battery cable.

    Tighten the bolt to 16 N·m (12 lb ft).

  13. Inspect the system for leaks.

Document ID# XXXXX
2000 Pontiac Grand Am

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