The thermostat in a 2017 Dodge Grand Caravan is located inside the thermostat housing at the end of the upper radiator hose where it connects to the engine. In most configurations, this housing sits on the front of the engine block, and the thermostat is contained within that housing. The exact appearance can vary a bit by engine option, but the general spot is where the upper radiator hose meets the engine.
Locating the thermostat in the engine bay
To identify the thermostat, start by tracing the cooling system’s upper radiator hose from the radiator toward the engine. The point where this hose ends is typically the thermostat housing, and the thermostat sits inside this housing. The housing may be plastic or metal and is usually secured with bolts; a temperature sensor or electrical connector might be nearby.
Before you begin inspecting, note that vehicle layouts can vary slightly by engine type (the 2017 Grand Caravan commonly used the 3.6L Pentastar V6). Regardless of the exact variant, the thermostat’s home base remains the thermostat housing attached to the engine near the end of the upper radiator hose.
- Follow the upper radiator hose from the radiator to the engine block; the hose usually terminates at the thermostat housing.
- Look for a small, rounded or rectangular housing with bolts and a large hose attached. This is the thermostat housing.
- Open the housing only if you’re prepared to manage coolant loss and possible gasket replacement; the thermostat sits inside this housing.
In summary, the thermostat is housed inside the thermostat housing at the end of the upper radiator hose on the engine, typically toward the front of the engine bay. Access may require loosening clamps and bolts, and you should take proper safety precautions to avoid burns or coolant spills.
Troubleshooting and replacement considerations
If you’re diagnosing thermostat-related issues or planning a replacement, keep these points in mind:
- Make sure the engine is cool and the cooling system is depressurized before attempting any work on the thermostat or radiator hoses.
- You’ll likely need the appropriate tools to remove hose clamps and bolts securing the thermostat housing; have replacement gaskets or o-rings on hand.
- During replacement, consider replacing the thermostat gasket and inspecting the housing for cracks or wear; replace if you notice damage.
- After reinstalling, refill the cooling system and bleed air as needed. Run the engine with the heater on to purge air and verify stable temperatures.
If you experience persistent leaks, overheating, or poor heater performance after any thermostat work, consult a qualified technician for a full cooling-system diagnostic.
Summary
For a 2017 Dodge Grand Caravan, the thermostat resides inside the thermostat housing at the end of the upper radiator hose connected to the engine. This housing is typically located on the front of the engine bay where the radiator hose meets the engine block. Locating it involves tracing the upper radiator hose to the housing, then removing the housing cover if replacement or inspection is needed. Always work on a cool engine and follow proper cooling-system procedures to avoid burns or spills.