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Fits 2010 - 2010 Blue Bird Vision School Bus, 1987 - 1989 Buick Century, 1991 - 1992 Buick Century, 1994 - 2005 Buick Century, 1988 - 1996 Buick Regal, 2002 - 2007 Buick Rendezvous, 1994 - 1998 Buick Skylark, 2005 - 2006 Buick Terraza, 1987 - 1988 Cadillac Cimarron, 2002 - 2006 Chevrolet Avalanche 2500, 1999 - 2002 Chevrolet B7, 1987 - 1993 Chevrolet Beretta, 1995 - 1996 Chevrolet Beretta, 1996 - 2000 Chevrolet C2500, 1996 - 1999 Chevrolet C2500 Suburban, 1996 - 2000 Chevrolet C3500, 1996 - 2002 Chevrolet C3500HD, 2003 - 2009 Chevrolet C4500 Kodiak, 2003 - 2005 Chevrolet C5500 Kodiak, 1999 - 2009 Chevrolet C6500 Kodiak, 1999 - 2009 Chevrolet C7500 Kodiak, 2003 - 2009 Chevrolet C8500, 1987 - 1994 Chevrolet Cavalier, 1987 - 1990 Chevrolet Celebrity, 1987 - 1996 Chevrolet Corsica, 2005 - 2009 Chevrolet Equinox, 1996 - 2002 Chevrolet Express 3500, 2000 - 2005 Chevrolet Impala, 1996 - 2000 Chevrolet K2500, 1996 - 1999 Chevrolet K2500 Suburban, 1996 - 2000 Chevrolet K3500, 1990 - 2001 Chevrolet Lumina, 1990 - 1996 Chevrolet Lumina APV, 1997 - 2006 Chevrolet Malibu, 1995 - 2005 Chevrolet Monte Carlo, 1996 - 1999 Chevrolet P30, 2001 - 2006 Chevrolet Silverado 2500 HD, 2007 - 2007 Chevrolet Silverado 2500 HD Classic, 2001 - 2006 Chevrolet Silverado 3500, 2007 - 2007 Chevrolet Silverado 3500 Classic, 2001 - 2006 Chevrolet Suburban 2500, 2005 - 2006 Chevrolet Uplander, 1997 - 2005 Chevrolet Venture, 1999 - 2002 GMC B7, 1996 - 2000 GMC C2500, 1996 - 1999 GMC C2500 Suburban, 1996 - 2000 GMC C3500, 1996 - 2002 GMC C3500HD, 2003 - 2009 GMC C4500 Topkick, 2003 - 2009 GMC C5500 Topkick, 1999 - 2009 GMC C6500 Topkick, 1999 - 2009 GMC C7500 Topkick, 2003 - 2009 GMC C8500 Topkick, 1996 - 2000 GMC K2500, 1996 - 1999 GMC K2500 Suburban, 1996 - 2000 GMC K3500, 1996 - 1999 GMC P3500, 1996 - 2002 GMC Savana 3500, 2001 - 2006 GMC Sierra 2500 HD, 2007 - 2007 GMC Sierra 2500 HD Classic, 2001 - 2006 GMC Sierra 3500, 2007 - 2007 GMC Sierra 3500 Classic, 2001 - 2006 GMC Yukon XL 2500, 1994 - 1998 Oldsmobile Achieva, 1999 - 2004 Oldsmobile Alero, 1997 - 1999 Oldsmobile Cutlass, 1987 - 1989 Oldsmobile Cutlass Ciera, 1994 - 1996 Oldsmobile Cutlass Ciera, 1994 - 1994 Oldsmobile Cutlass Cruiser, 1987 - 1989 Oldsmobile Cutlass Cruiser, 1988 - 1997 Oldsmobile Cutlass Supreme, 1987 - 1987 Oldsmobile Firenza, 1990 - 1994 Oldsmobile Silhouette, 1996 - 2004 Oldsmobile Silhouette, 1987 - 1991 Pontiac 6000, 2001 - 2005 Pontiac Aztek, 2005 - 2006 Pontiac G6, 1994 - 2005 Pontiac Grand Am, 1988 - 2003 Pontiac Grand Prix, 1999 - 2006 Pontiac Montana, 1991 - 1994 Pontiac Sunbird, 1987 - 1991 Pontiac Tempest, 2006 - 2009 Pontiac Torrent, 1990 - 1999 Pontiac Trans Sport, 2005 - 2006 Saturn Relay, 1999 - 2005 Workhorse P32, 1999 - 2005 Workhorse P42, 2007 - 2009 Workhorse R26, 2006 - 2009 Workhorse W16, 2006 - 2009 Workhorse W18, 2001 - 2009 Workhorse W20, 2007 - 2009 Workhorse W21, 2001 - 2009 Workhorse W22, 2004 - 2009 Workhorse W24, 2005 - 2009 Workhorse W25, 1999 - 2007 Workhorse Custom Chassis P32, 2007 - 2008 Workhorse Custom Chassis R26, 2006 - 2010 Workhorse Custom Chassis W18, 2001 - 2011 Workhorse Custom Chassis W22, 2011 - 2011 Workhorse Custom Chassis W24, 2004 - 2005 Workhorse Custom Chassis W24, 2007 - 2009 Workhorse Custom Chassis W24, 2002 - 2005 Workhorse Custom Chassis W52, 2007 - 2010 Workhorse Custom Chassis W62, 2006 - 2006 Workhorse Custom Chassis W72

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Vehicle: Saturn

Item LocatedUnited States

Quantity1

ConditionNew

item #1013DTY2

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What is an engine thermostat?

While all engines can become too hot, if your thermostat isn't working correctly, your engine's well-being is at serious risk. The engine thermostat, often simply referred to as a thermostat, regulates the engine's operating temperature within an optimal range (typically around 195 to 220 degrees Fahrenheit).

How does a car thermostat work?

As a temperature-sensitive valve within the cooling system, a car thermostat responds to changes in coolant temperature. Understanding how it works by the following breakdown steps:

Closed position (cold start)

Initially closed to help the engine warm up quickly.

Heating up

The engine generates heat during operation.

Opening the thermostat

A temperature-sensitive element (usually wax) causes the thermostat to open gradually.

Coolant flow

When open, coolant flows from the engine to the radiator.

Maintaining optimal temperature

Adjusts coolant flow to maintain the ideal engine temperature.

Temperature regulation

Continuously adjusts to prevent overheating and ensure efficient operation.

Signs of a bad thermostat

Overheating: The engine becomes excessively hot due to a stuck-closed thermostat.

Low or fluctuating temperature: A thermostat stuck open results in a cooler engine, affecting fuel efficiency and heating.

Temperature warning light: Illuminates to indicate engine overheating due to a faulty thermostat.

Poor fuel efficiency: Stuck-open thermostat reduces fuel efficiency as the engine operates less efficiently at lower temperatures.

Inadequate cabin heating: Insufficient cabin heating in cold weather with a thermostat that's stuck open.

Coolant leaks: Gasket or sealing issues can lead to coolant leaks.

Rapid temperature fluctuations: The gauge shows rapid swings between hot and cold.

Engine running hot at idle: Higher engine temperature during idle or in traffic due to restricted coolant flow.

Slow or inconsistent warm-up: Longer-than-normal warm-up times, even in moderate weather.

Inconsistent heater operation: This affects the performance of the vehicle's heater, causing inconsistent or inadequate heating in cold weather.

Thermostat

What is an engine thermostat?

How does a car thermostat work?

Signs of a bad thermostat

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