How do you change the thermostat out
Mar 12, 2014 at 5:34 AM
check coolant level light stsys on
1999 PONTIAC TRANSPORT
SCORPIONTRUCKER01
- MEMBER
- 1 POST
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HMAC300
- ✓ASE Certified Mechanic
- 48,601 POSTS
Remove the air cleaner and duct assembly. See Fig. 10. Drain the coolant until the coolant level is below the thermostat. See COOLING SYSTEM BLEEDING.
Remove the crossover exhaust pipe. See Fig. 11. Remove the radiator hose from the thermostat housing.
Remove the thermostat housing bolts and clean any sealer from the bolt threads. See Fig. 12. Remove the thermostat housing and gasket.
Remove the thermostat. Inspect and clean the mating surfaces.
Install the thermostat housing and gasket. Install RTV sealer (GM P/N 1052366) to the thermostat housing bolt threads. Install the thermostat housing bolts. See TORQUE SPECIFICATIONS.
To complete installation, reverse removal procedure. Fill the cooling system. Inspect the cooling system for leaks. Repair as necessary.
Remove the crossover exhaust pipe. See Fig. 11. Remove the radiator hose from the thermostat housing.
Remove the thermostat housing bolts and clean any sealer from the bolt threads. See Fig. 12. Remove the thermostat housing and gasket.
Remove the thermostat. Inspect and clean the mating surfaces.
Install the thermostat housing and gasket. Install RTV sealer (GM P/N 1052366) to the thermostat housing bolt threads. Install the thermostat housing bolts. See TORQUE SPECIFICATIONS.
To complete installation, reverse removal procedure. Fill the cooling system. Inspect the cooling system for leaks. Repair as necessary.
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Mar 12, 2014 at 6:52 AM
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.