Performing a coolant flush on a Chrysler LH platform vehicle (such as the LHS, Concorde, Intrepid, or Vision) is a maintenance task that helps remove old coolant and any contaminants from the cooling system. click here for more details on the download manual…..
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Here’s how to do it in reverse order:
### 10. Refill the Cooling System
– **Add New Coolant**: Pour the appropriate type and mixture of new coolant into the radiator or coolant reservoir.
– **Bleed the System**: If necessary, follow the manufacturer’s instructions to bleed air out of the cooling system. This may involve running the engine with the radiator cap off until the thermostat opens and the coolant circulates.
### 9. Replace the Radiator Cap
– **Secure the Radiator Cap**: Once the system is filled and bled, securely replace the radiator cap.
### 8. Reconnect Hoses
– **Reconnect Any Disconnected Hoses**: If you removed any hoses during the process, reconnect them and ensure they are secure with clamps.
### 7. Run the Engine
– **Start the Engine**: Let the engine run for a few minutes to allow the new coolant to circulate and check for any leaks.
– **Monitor Temperature**: Keep an eye on the temperature gauge to make sure the engine is running at the proper temperature.
### 6. Flush the Cooling System
– **Use a Flush Solution**: If desired, add a radiator flush solution to the cooling system and follow the instructions on the product. This may involve running the engine for a specified time.
– **Drain the Flush**: After the recommended time has elapsed, turn off the engine and allow it to cool. Drain the flush solution just as you did with the old coolant.
### 5. Drain Old Coolant
– **Open the Drain Valve**: Locate the drain plug at the bottom of the radiator and open it to allow the old coolant to flow out. You may need to remove the lower radiator hose as an alternative.
– **Catch the Old Coolant**: Use a container to catch the old coolant for proper disposal.
### 4. Prepare the Vehicle
– **Raise the Vehicle**: If necessary, use a jack to lift the front of the vehicle and secure it on jack stands for better access to the radiator.
– **Gather Tools and Supplies**: Collect necessary tools (screwdrivers, pliers, etc.) and supplies (new coolant, flushing solution, containers for old coolant).
### 3. Allow Engine to Cool
– **Let the Engine Cool Down**: Before starting the flush, ensure that the engine is completely cool to prevent burns.
### 2. Safety Precautions
– **Wear Protective Gear**: Use gloves and safety glasses to protect against coolant and debris.
### 1. Locate the Radiator
– **Identify the Radiator**: Open the hood and locate the radiator and coolant reservoir.
Always refer to the vehicle’s owner manual for specific instructions
and recommendations regarding coolant type and maintenance intervals. Proper disposal of old coolant is important, as it is toxic to animals and the environment.
The radiator fan is a crucial component of a vehicle’s cooling system, designed to maintain optimal engine temperatures by regulating airflow through the radiator. Its primary function is to assist in dissipating heat generated by the engine during operation. When the engine runs, it produces a significant amount of heat, which must be managed effectively to prevent overheating and maintain performance.
Typically located directly behind the radiator, the fan operates by drawing air through the radiator core, enhancing the heat exchange process. This is particularly important when the vehicle is idling or moving at low speeds, where natural airflow may be insufficient. The fan is usually powered by an electric motor, although some vehicles may employ a belt-driven fan that is mechanically linked to the engine.
Modern vehicles often utilize electric radiator fans, which are controlled by the engine’s electronic control unit (ECU). The ECU monitors the engine temperature and activates the fan when necessary, allowing for greater energy efficiency compared to older mechanical systems. These fans can operate at varying speeds, providing additional cooling when temperatures rise.
In addition to preventing engine overheating, a properly functioning radiator fan contributes to overall engine efficiency, enhances performance, and prolongs the lifespan of engine components. Failure of the radiator fan can lead to severe engine damage, underscoring its importance in vehicle maintenance and operation. Regular checks and timely replacements are essential for ensuring optimal cooling system performance.