How to service and repair the thermostat on GMC Savana 1500?

First you need to uninstall the air cleaner and duct assembly before parially draining coolant from the system and removing the coolant recovery reservoir. Starting with the Radiator Hose separation from the Thermostat Housing proceed to remove Thermostat Housing bolts followed by removing both components. First clean the mounting areas for the gaskets before you add a new Thermostat. Fasten the Thermostat Housing to the Intake Manifold before tightening its bolts to 25 nm (18 ft. Lbs.). Reinstall the coolant recovery reservoir and therapist housing Radiator Hose before you return the air cleaner and duct. To complete the procedure you should fill the cooling system then extract air from it before examining the Thermostat Housing and its gasket for coolant leakage.

OEM GMC Savana 1500 Thermostat

Engine Coolant Thermostat

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GMC Savana 1500 Thermostat Part Number: 12632948
$29.83 MSRP: $56.02
You Save: $26.19 (47%)
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Product Specifications
- Other Name: Thermostat, Engine Coolant Temperature
- Replaces: 12257859, 12563335, 12557859, 12597583, 12551472
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1996-2014 GMC Savana 1500 | Base, LS, LT, SLE, SLT | 6 Cyl 4.3 L GAS, 8 Cyl 5.0 L GAS, 8 Cyl 5.7 L GAS
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GMC Savana 1500 Thermostat Part Number: 89018168
$36.41 MSRP: $72.25
You Save: $35.84 (50%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Engine Coolant Thermostat; Thermostat, Engine Coolant Temperature
- Replaces: 89017851
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2007-2014 GMC Savana 1500 | Base, LS, LT | 8 Cyl 5.3 L FLEX, 8 Cyl 5.3 L GAS
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GMC Savana 1500 Thermostat Unit Part Number: 12600171
$24.02 MSRP: $45.12
You Save: $21.10 (47%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Thermostat, Engine Coolant Temperature; Thermostat
- Replaces: 12581595
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2004-2006 GMC Savana 1500 | Base, LS, LT, SLE | 8 Cyl 5.3 L GAS

GMC Savana 1500 Thermostat

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GMC Savana 1500 Thermostat Parts and Q&A

Thermostat
12632948
Q: How to service and repair the thermostat on GMC Savana 1500?
A:
First you need to uninstall the air cleaner and duct assembly before parially draining coolant from the system and removing the coolant recovery reservoir. Starting with the Radiator Hose separation from the Thermostat Housing proceed to remove Thermostat Housing bolts followed by removing both components. First clean the mounting areas for the gaskets before you add a new Thermostat. Fasten the Thermostat Housing to the Intake Manifold before tightening its bolts to 25 nm (18 ft. Lbs.). Reinstall the coolant recovery reservoir and therapist housing Radiator Hose before you return the air cleaner and duct. To complete the procedure you should fill the cooling system then extract air from it before examining the Thermostat Housing and its gasket for coolant leakage.