The thermostat on most 2017 Jeep models sits inside the thermostat housing at the engine end of the upper radiator hose. This housing controls when coolant flows to the radiator and helps regulate engine temperature.
Locating the thermostat in your 2017 Jeep
To locate the thermostat, start by finding the upper radiator hose and follow it to the engine. The thermostat sits inside the housing where the hose connects to the engine block or cylinder head. The housing is typically a small plastic or metal block secured with bolts and may include a sensor or cap.
- Follow the upper radiator hose from the radiator toward the engine until it terminates at a housing mounted on the engine. This housing contains the thermostat.
- Look for a removable cap or cover on the housing, usually held by 2–3 bolts. The thermostat sits inside behind that cover.
- Be cautious about coolant pressure. If the engine is hot, allow it to cool before touching the housing or draining coolant.
- Note that some 2017 Jeep variants may place the housing slightly toward the back or side of the engine; consult the service manual for your exact model/engine code for precise access.
Identifying the thermostat housing location allows you to inspect the housing for leaks or replace the thermostat if needed, keeping in mind that you may need to drain some coolant before removal.
Model and engine variations to consider
Although the general location remains the same, Jeep used several engines in 2017, which can affect access and replacement steps. The thermostat is typically housed at the end of the upper radiator hose on the engine, but exact orientation can vary by engine configuration. Use the hose as your guide and refer to your vehicle’s manual for the precise layout of your specific model.
- 3.6L Pentastar V6 (common in Grand Cherokee, Cherokee, and Wrangler) generally uses a thermostat housing connected to the hose at the engine’s side or top, with access through nearby components that may need removal.
- Other 2017 Jeep configurations share the same basic principle—a housing on the end of the upper radiator hose—but the surrounding layout can differ by model, trim, and accessories.
- If you’re unsure, consult the official owner’s manual or a service manual for your exact engine code to confirm the housing’s location and replacement procedure.
When in doubt, seek professional guidance. A qualified technician can accurately locate, diagnose, and service the thermostat without risking coolant spills or improper reassembly.
Safety tips and quick symptoms to know
Common signs of a failing or stuck thermostat include engine overheating, the temperature gauge running higher than normal, coolant leaks around the thermostat housing, or the engine taking longer to reach operating temperature. If you notice any of these symptoms, stop driving if safe to do so and have the cooling system inspected. Always ensure the engine is cool before handling cooling components or removing the thermostat housing.
Summary
In a 2017 Jeep, the thermostat is typically located inside the thermostat housing at the engine end of the upper radiator hose. While this location is standard across many models, exact access can vary by engine type and model. Use the radiator hose as your guide, consult the owner’s manual or service manual for your specific configuration, and consider professional service if you’re uncertain about locating or replacing the thermostat. Maintaining proper thermostat function is essential for preventing overheating and ensuring reliable engine operation.