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Universal Air EX5679C A/C Expansion Valve - Rear
Reliable A/C Expansion Valve for Chevrolet and GMC Vans
The Universal Air Thermal Expansion Valve EX5679C is designed to regulate refrigerant flow in the air conditioning systems of Chevrolet Express and GMC Savana vans. This A/C expansion valve ensures efficient cooling performance and system stability for your vehicle's HVAC system.
- Compatible with Chevrolet Express 1500, 2500, 3500 and GMC Savana 1500, 2500, 3500 models
- Part number EX5679C for precise identification and fitment
- Controls refrigerant flow to maintain optimal A/C system pressure
- Manufactured by Universal Air, a trusted brand in HVAC components
- Part of the Thermal Expansion Valve product line designed for reliable temperature regulation
About the Thermal Expansion Valve Product Line
The Thermal Expansion Valve line from Universal Air focuses on components that regulate refrigerant flow within automotive air conditioning systems. These valves are engineered to maintain consistent pressure and temperature control, which is critical for the proper operation of HVAC systems in vehicles like the Chevrolet Express and GMC Savana series. The EX5679C is a key part of this line, providing dependable performance and compatibility with specific van models.
Product Description and Function
The EX5679C A/C expansion valve is a flow restrictor that modulates the amount of refrigerant entering the evaporator. By adjusting refrigerant flow based on temperature and pressure, it helps maintain the efficiency and longevity of the vehicleโs air conditioning system. This valve is specifically designed for use in Chevrolet Express 1500, 2500, 3500 and GMC Savana 1500, 2500, 3500 vans, ensuring a precise fit and optimal system performance.
Common Issues Addressed by This Expansion Valve
- Inconsistent cabin cooling or fluctuating air temperatures
- Excessive pressure buildup in the A/C system
- Reduced refrigerant flow causing poor evaporator performance
- System freeze-ups or compressor cycling problems
- General A/C system inefficiency in Chevrolet Express and GMC Savana vans
Installation Notes and Tips
- Ensure the vehicle is compatible: Chevrolet Express 1500, 2500, 3500 or GMC Savana 1500, 2500, 3500
- Follow manufacturer guidelines for refrigerant handling and system evacuation
- Replace the expansion valve when performing major A/C system repairs or if symptoms of valve failure are present
- Use proper tools to avoid damage to the valve or surrounding components
- Check for leaks and system pressure after installation
Quality Assurance and Warranty
Universal Air manufactures the EX5679C expansion valve to meet industry standards for durability and performance. While specific warranty details are not provided, Universal Air products typically undergo rigorous quality control to ensure reliable operation within the specified vehicle applications.
This part fits 173 vehicles. Search below:
| Year | Make | Model | Submodel | Liters | Cylinders | Fuel Type | Position | Notes |
|---|---|---|---|---|---|---|---|---|
| 2020 | GMC | Savana 2500 | Rear | Thermal Expansion Valve | ||||
| 2020 | GMC | Savana 3500 | Rear | Thermal Expansion Valve | ||||
| 2019 | Chevrolet | Express 2500 | Rear | Thermal Expansion Valve | ||||
| 2019 | Chevrolet | Express 3500 | Rear | Thermal Expansion Valve | ||||
| 2019 | GMC | Savana 2500 | Rear | Thermal Expansion Valve | ||||
| 2019 | GMC | Savana 3500 | Rear | Thermal Expansion Valve | ||||
| 2018 | Chevrolet | Express 2500 | Rear | Thermal Expansion Valve | ||||
| 2018 | Chevrolet | Express 3500 | Base | 6.0L | V8 | FLEX | Rear | Thermal Expansion Valve |
| 2018 | Chevrolet | Express 3500 | Base | 6.0L | V8 | GAS | Rear | Thermal Expansion Valve |
| 2018 | Chevrolet | Express 3500 | Base | 6.0L | V8 | CNG | Rear | Thermal Expansion Valve |
| 2018 | Chevrolet | Express 3500 | Base | 4.3L | V6 | GAS | Rear | Thermal Expansion Valve |
| 2018 | Chevrolet | Express 3500 | LS | 4.3L | V6 | FLEX | Rear | Thermal Expansion Valve |
| 2018 | Chevrolet | Express 3500 | LS | 2.8L | L4 | DIESEL | Rear | Thermal Expansion Valve |
| 2018 | Chevrolet | Express 3500 | LS | 6.0L | V8 | FLEX | Rear | Thermal Expansion Valve |
| 2018 | Chevrolet | Express 3500 | LS | 6.0L | V8 | GAS | Rear | Thermal Expansion Valve |
| 2018 | Chevrolet | Express 3500 | LS | 6.0L | V8 | CNG | Rear | Thermal Expansion Valve |
| 2018 | Chevrolet | Express 3500 | LT | 4.3L | V6 | FLEX | Rear | Thermal Expansion Valve |
| 2018 | Chevrolet | Express 3500 | LT | 2.8L | L4 | DIESEL | Rear | Thermal Expansion Valve |
| 2018 | Chevrolet | Express 3500 | LT | 6.0L | V8 | FLEX | Rear | Thermal Expansion Valve |
| 2018 | Chevrolet | Express 3500 | LT | 6.0L | V8 | GAS | Rear | Thermal Expansion Valve |
| 2018 | Chevrolet | Express 3500 | Base | 4.3L | V6 | FLEX | Rear | Thermal Expansion Valve |
| 2018 | Chevrolet | Express 3500 | Base | 2.8L | L4 | DIESEL | Rear | Thermal Expansion Valve |
| 2018 | Chevrolet | Express 3500 | LS | 4.3L | V6 | GAS | Rear | Thermal Expansion Valve |
| 2018 | Chevrolet | Express 3500 | LT | 6.0L | V8 | CNG | Rear | Thermal Expansion Valve |
| 2018 | Chevrolet | Express 3500 | LT | 4.3L | V6 | GAS | Rear | Thermal Expansion Valve |
| 2018 | GMC | Savana 2500 | Rear | Thermal Expansion Valve | ||||
| 2018 | GMC | Savana 3500 | Rear | Thermal Expansion Valve | ||||
| 2017 | Chevrolet | Express 2500 | Rear | Thermal Expansion Valve | ||||
| 2017 | Chevrolet | Express 3500 | 2.8L | L4 | DIESEL | Rear | Thermal Expansion Valve | |
| 2017 | Chevrolet | Express 3500 | 6.0L | V8 | FLEX | Rear | Thermal Expansion Valve | |
| 2017 | Chevrolet | Express 3500 | 4.8L | V8 | FLEX | Rear | Thermal Expansion Valve | |
| 2017 | GMC | Savana 2500 | Rear | Thermal Expansion Valve | ||||
| 2017 | GMC | Savana 3500 | Rear | Thermal Expansion Valve | ||||
| 2016 | Chevrolet | Express 2500 | Rear | Thermal Expansion Valve | ||||
| 2016 | Chevrolet | Express 3500 | Rear | Thermal Expansion Valve | ||||
| 2016 | GMC | Savana 2500 | Rear | Thermal Expansion Valve | ||||
| 2016 | GMC | Savana 3500 | Rear | Thermal Expansion Valve | ||||
| 2015 | Chevrolet | Express 2500 | Rear | Thermal Expansion Valve | ||||
| 2015 | Chevrolet | Express 3500 | Rear | Thermal Expansion Valve | ||||
| 2015 | GMC | Savana 2500 | Rear | Thermal Expansion Valve | ||||
| 2015 | GMC | Savana 3500 | Rear | Thermal Expansion Valve | ||||
| 2014 | Chevrolet | Express 1500 | Rear | Thermal Expansion Valve | ||||
| 2014 | Chevrolet | Express 2500 | Rear | Thermal Expansion Valve | ||||
| 2014 | Chevrolet | Express 3500 | Rear | Thermal Expansion Valve | ||||
| 2014 | GMC | Savana 1500 | Rear | Thermal Expansion Valve | ||||
| 2014 | GMC | Savana 2500 | Rear | Thermal Expansion Valve | ||||
| 2014 | GMC | Savana 3500 | Rear | Thermal Expansion Valve | ||||
| 2013 | Chevrolet | Express 1500 | Rear | Thermal Expansion Valve | ||||
| 2013 | Chevrolet | Express 2500 | Rear | Thermal Expansion Valve | ||||
| 2013 | Chevrolet | Express 3500 | Rear | Thermal Expansion Valve | ||||
| 2013 | GMC | Savana 1500 | Rear | Thermal Expansion Valve | ||||
| 2013 | GMC | Savana 2500 | Rear | Thermal Expansion Valve | ||||
| 2013 | GMC | Savana 3500 | Rear | Thermal Expansion Valve | ||||
| 2012 | Chevrolet | Express 1500 | Rear | Thermal Expansion Valve | ||||
| 2012 | Chevrolet | Express 2500 | Rear | Thermal Expansion Valve | ||||
| 2012 | Chevrolet | Express 3500 | Rear | Thermal Expansion Valve | ||||
| 2012 | GMC | Savana 1500 | Rear | Thermal Expansion Valve | ||||
| 2012 | GMC | Savana 2500 | Rear | Thermal Expansion Valve | ||||
| 2012 | GMC | Savana 3500 | Rear | Thermal Expansion Valve | ||||
| 2011 | Chevrolet | Express 1500 | Rear | Thermal Expansion Valve | ||||
| 2011 | Chevrolet | Express 2500 | Rear | Thermal Expansion Valve | ||||
| 2011 | Chevrolet | Express 3500 | Rear | Thermal Expansion Valve | ||||
| 2011 | GMC | Savana 1500 | Rear | Thermal Expansion Valve | ||||
| 2011 | GMC | Savana 2500 | Rear | Thermal Expansion Valve | ||||
| 2011 | GMC | Savana 3500 | Rear | Thermal Expansion Valve | ||||
| 2010 | Chevrolet | Express 1500 | Rear | Thermal Expansion Valve | ||||
| 2010 | Chevrolet | Express 2500 | Rear | Thermal Expansion Valve | ||||
| 2010 | Chevrolet | Express 3500 | Rear | Thermal Expansion Valve | ||||
| 2010 | GMC | Savana 1500 | Rear | Thermal Expansion Valve | ||||
| 2010 | GMC | Savana 2500 | Rear | Thermal Expansion Valve | ||||
| 2010 | GMC | Savana 3500 | Rear | Thermal Expansion Valve | ||||
| 2009 | Chevrolet | Express 1500 | Rear | Thermal Expansion Valve | ||||
| 2009 | Chevrolet | Express 2500 | Rear | Thermal Expansion Valve | ||||
| 2009 | Chevrolet | Express 3500 | Rear | Thermal Expansion Valve | ||||
| 2009 | GMC | Savana 1500 | Rear | Thermal Expansion Valve | ||||
| 2009 | GMC | Savana 2500 | Rear | Thermal Expansion Valve | ||||
| 2009 | GMC | Savana 3500 | Rear | Thermal Expansion Valve | ||||
| 2008 | Chevrolet | Express 1500 | Rear | Thermal Expansion Valve | ||||
| 2008 | Chevrolet | Express 2500 | Rear | Thermal Expansion Valve | ||||
| 2008 | Chevrolet | Express 3500 | Rear | Thermal Expansion Valve | ||||
| 2008 | GMC | Savana 1500 | Rear | Thermal Expansion Valve | ||||
| 2008 | GMC | Savana 2500 | Rear | Thermal Expansion Valve | ||||
| 2008 | GMC | Savana 3500 | Rear | Thermal Expansion Valve | ||||
| 2007 | Chevrolet | Express 1500 | Rear | Thermal Expansion Valve | ||||
| 2007 | Chevrolet | Express 2500 | Base | 6.0L | V8 | GAS | Rear | Thermal Expansion Valve |
| 2007 | Chevrolet | Express 2500 | Base | 4.8L | V8 | GAS | Rear | Thermal Expansion Valve |
| 2007 | Chevrolet | Express 2500 | Base | 6.6L | V8 | DIESEL | Rear | Thermal Expansion Valve |
| 2007 | Chevrolet | Express 2500 | LS | 6.0L | V8 | GAS | Rear | Thermal Expansion Valve |
| 2007 | Chevrolet | Express 2500 | LT | 6.0L | V8 | GAS | Rear | Thermal Expansion Valve |
| 2007 | Chevrolet | Express 3500 | Rear | Thermal Expansion Valve | ||||
| 2007 | GMC | Savana 1500 | Rear | Thermal Expansion Valve | ||||
| 2007 | GMC | Savana 2500 | Rear | Thermal Expansion Valve | ||||
| 2007 | GMC | Savana 3500 | Rear | Thermal Expansion Valve | ||||
| 2006 | Chevrolet | Express 1500 | Rear | Thermal Expansion Valve | ||||
| 2006 | Chevrolet | Express 2500 | Rear | Thermal Expansion Valve | ||||
| 2006 | Chevrolet | Express 3500 | Rear | Thermal Expansion Valve | ||||
| 2006 | GMC | Savana 1500 | Rear | Thermal Expansion Valve | ||||
| 2006 | GMC | Savana 2500 | 4.8L | V8 | GAS | Rear | Thermal Expansion Valve | |
| 2006 | GMC | Savana 2500 | 6.6L | V8 | DIESEL | Rear | Thermal Expansion Valve | |
| 2006 | GMC | Savana 2500 | 6.0L | V8 | GAS | Rear | Thermal Expansion Valve | |
| 2006 | GMC | Savana 3500 | Rear | Thermal Expansion Valve | ||||
| 2005 | Chevrolet | Express 1500 | Rear | Thermal Expansion Valve | ||||
| 2005 | Chevrolet | Express 2500 | Rear | Thermal Expansion Valve | ||||
| 2005 | Chevrolet | Express 3500 | Rear | Thermal Expansion Valve | ||||
| 2005 | GMC | Savana 1500 | Rear | Thermal Expansion Valve | ||||
| 2005 | GMC | Savana 2500 | Rear | Thermal Expansion Valve | ||||
| 2005 | GMC | Savana 3500 | Rear | Thermal Expansion Valve | ||||
| 2004 | Chevrolet | Express 1500 | Rear | Thermal Expansion Valve | ||||
| 2004 | Chevrolet | Express 2500 | Rear | Thermal Expansion Valve | ||||
| 2004 | Chevrolet | Express 3500 | Rear | Thermal Expansion Valve | ||||
| 2004 | GMC | Savana 1500 | Rear | Thermal Expansion Valve | ||||
| 2004 | GMC | Savana 2500 | Rear | Thermal Expansion Valve | ||||
| 2004 | GMC | Savana 3500 | Rear | Thermal Expansion Valve | ||||
| 2003 | Chevrolet | Express 1500 | Rear | Thermal Expansion Valve | ||||
| 2003 | Chevrolet | Express 2500 | Rear | Thermal Expansion Valve | ||||
| 2003 | Chevrolet | Express 3500 | Rear | Thermal Expansion Valve | ||||
| 2003 | GMC | Savana 1500 | Rear | Thermal Expansion Valve | ||||
| 2003 | GMC | Savana 2500 | Rear | Thermal Expansion Valve | ||||
| 2003 | GMC | Savana 3500 | Rear | Thermal Expansion Valve | ||||
| 2002 | Chevrolet | Express 1500 | Rear | Thermal Expansion Valve | ||||
| 2002 | Chevrolet | Express 2500 | Rear | Thermal Expansion Valve | ||||
| 2002 | Chevrolet | Express 3500 | Rear | Thermal Expansion Valve | ||||
| 2002 | GMC | Savana 1500 | Rear | Thermal Expansion Valve | ||||
| 2002 | GMC | Savana 2500 | Rear | Thermal Expansion Valve | ||||
| 2002 | GMC | Savana 3500 | 5.7L | V8 | BI-FUEL | Rear | Thermal Expansion Valve | |
| 2002 | GMC | Savana 3500 | 5.7L | V8 | GAS | Rear | Thermal Expansion Valve | |
| 2002 | GMC | Savana 3500 | 8.1L | V8 | GAS | Rear | Thermal Expansion Valve | |
| 2002 | GMC | Savana 3500 | 6.5L | V8 | DIESEL | Rear | Thermal Expansion Valve | |
| 2001 | Chevrolet | Express 1500 | Rear | Thermal Expansion Valve | ||||
| 2001 | Chevrolet | Express 2500 | Rear | Thermal Expansion Valve | ||||
| 2001 | Chevrolet | Express 3500 | Rear | Thermal Expansion Valve | ||||
| 2001 | GMC | Savana 1500 | Rear | Thermal Expansion Valve | ||||
| 2001 | GMC | Savana 2500 | Rear | Thermal Expansion Valve | ||||
| 2001 | GMC | Savana 3500 | 5.7L | V8 | GAS | Rear | Thermal Expansion Valve | |
| 2001 | GMC | Savana 3500 | 8.1L | V8 | GAS | Rear | Thermal Expansion Valve | |
| 2001 | GMC | Savana 3500 | 5.7L | V8 | BI-FUEL | Rear | Thermal Expansion Valve | |
| 2001 | GMC | Savana 3500 | 6.5L | V8 | DIESEL | Rear | Thermal Expansion Valve | |
| 2000 | Chevrolet | Express 1500 | Rear | Thermal Expansion Valve | ||||
| 2000 | Chevrolet | Express 2500 | Rear | Thermal Expansion Valve | ||||
| 2000 | Chevrolet | Express 3500 | Rear | Thermal Expansion Valve | ||||
| 2000 | GMC | Savana 1500 | Rear | Thermal Expansion Valve | ||||
| 2000 | GMC | Savana 2500 | Rear | Thermal Expansion Valve | ||||
| 2000 | GMC | Savana 3500 | 5.7L | V8 | GAS | Rear | Thermal Expansion Valve | |
| 2000 | GMC | Savana 3500 | 6.5L | V8 | DIESEL | Rear | Thermal Expansion Valve | |
| 2000 | GMC | Savana 3500 | 7.4L | V8 | GAS | Rear | Thermal Expansion Valve | |
| 1999 | Chevrolet | Express 1500 | Rear | Thermal Expansion Valve | ||||
| 1999 | Chevrolet | Express 2500 | Rear | Thermal Expansion Valve | ||||
| 1999 | Chevrolet | Express 3500 | Rear | Thermal Expansion Valve | ||||
| 1999 | GMC | Savana 1500 | Rear | Thermal Expansion Valve | ||||
| 1999 | GMC | Savana 2500 | Rear | Thermal Expansion Valve | ||||
| 1999 | GMC | Savana 3500 | Rear | Thermal Expansion Valve | ||||
| 1998 | Chevrolet | Express 1500 | Rear | Thermal Expansion Valve | ||||
| 1998 | Chevrolet | Express 2500 | Rear | Thermal Expansion Valve | ||||
| 1998 | Chevrolet | Express 3500 | Rear | Thermal Expansion Valve | ||||
| 1998 | GMC | Savana 1500 | Rear | Thermal Expansion Valve | ||||
| 1998 | GMC | Savana 2500 | Rear | Thermal Expansion Valve | ||||
| 1998 | GMC | Savana 3500 | 5.7L | V8 | GAS | Rear | Thermal Expansion Valve | |
| 1998 | GMC | Savana 3500 | 6.5L | V8 | DIESEL | Rear | Thermal Expansion Valve | |
| 1998 | GMC | Savana 3500 | 7.4L | V8 | GAS | Rear | Thermal Expansion Valve | |
| 1997 | Chevrolet | Express 1500 | Rear | Thermal Expansion Valve | ||||
| 1997 | Chevrolet | Express 2500 | Rear | Thermal Expansion Valve | ||||
| 1997 | Chevrolet | Express 3500 | Rear | Thermal Expansion Valve | ||||
| 1997 | GMC | Savana 1500 | Rear | Thermal Expansion Valve | ||||
| 1997 | GMC | Savana 2500 | Rear | Thermal Expansion Valve | ||||
| 1997 | GMC | Savana 3500 | 5.7L | V8 | GAS | Rear | Thermal Expansion Valve | |
| 1997 | GMC | Savana 3500 | 6.5L | V8 | DIESEL | Rear | Thermal Expansion Valve | |
| 1997 | GMC | Savana 3500 | 7.4L | V8 | GAS | Rear | Thermal Expansion Valve | |
| 1996 | Chevrolet | Express 1500 | Rear | Thermal Expansion Valve | ||||
| 1996 | Chevrolet | Express 2500 | Rear | Thermal Expansion Valve | ||||
| 1996 | Chevrolet | Express 3500 | Rear | Thermal Expansion Valve | ||||
| 1996 | GMC | Savana 1500 | Rear | Thermal Expansion Valve | ||||
| 1996 | GMC | Savana 2500 | Rear | Thermal Expansion Valve | ||||
| 1996 | GMC | Savana 3500 | Rear | Thermal Expansion Valve |
* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
This part directly replaces or is cross-referenced with the following part numbers:
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.