Safety First:
* Coolant is HOT and corrosive: Let the engine cool completely before starting. Allow several hours, or even overnight, after driving.
* Wear safety glasses and gloves: Protect your eyes and skin from coolant and potential debris.
* Work in a well-ventilated area: Coolant fumes can be harmful.
* Support the vehicle: Use jack stands to safely lift and support the van. Never work under a vehicle supported only by a jack.
Tools and Materials:
* New radiator hose(s): Purchase the correct size and type from a parts store. Bring your old hose as a reference.
* Socket wrench set: Various sizes will likely be needed.
* Wrench set: For hose clamps.
* Pliers: Channel-lock pliers are helpful for stubborn clamps.
* Flathead screwdriver: Might be needed to pry off stubborn clamps.
* Drain pan: To catch the coolant.
* Funnel: To refill the radiator.
* New coolant: 50/50 mix of coolant and distilled water (check your owner's manual for the correct type).
* Rag(s): For cleaning up spills.
* Flashlight: To illuminate tight spaces.
Steps:
1. Drain the coolant: Locate the radiator drain petcock (usually a valve at the bottom of the radiator) and open it, letting the coolant drain into your drain pan.
2. Locate the hose clamp(s): Identify the clamps securing the hose to the radiator and engine.
3. Remove the hose clamp(s): Use the appropriate pliers or wrench to loosen and remove the clamps. Some clamps may require squeezing or turning to release.
4. Remove the old hose: Carefully pull the old hose off the radiator and engine connections. It might be stiff or stuck; gently work it loose. Be prepared for some coolant spillage.
5. Clean the connections: Thoroughly clean the radiator and engine connections where the hose attaches to remove any debris.
6. Install the new hose: Carefully slide the new hose onto the radiator and engine connections. Make sure it's seated properly.
7. Install the hose clamp(s): Secure the new hose with the clamps. Make sure the clamps are tightened evenly and securely. Don't overtighten, as this can damage the hose.
8. Refill the radiator: Using a funnel, carefully add the 50/50 coolant mixture to the radiator until it's full.
9. Bleed the air: Start the engine and let it run for a few minutes to allow the coolant to circulate and bleed out any trapped air. Check the coolant level and add more as needed. Your owner's manual may describe a specific bleeding procedure.
10. Check for leaks: Inspect the hoses and connections for any leaks.
11. Dispose of old coolant properly: Coolant is hazardous waste; dispose of it according to local regulations.
Important Considerations:
* Upper vs. Lower Hose: The upper hose connects the radiator to the engine, while the lower hose connects the engine to the radiator. The procedure is similar for both, but the upper hose may be more difficult to access.
* Hose routing: Pay close attention to the routing of the hose before removing it, as this will help you install the new one correctly.
* Engine type: The specific location and accessibility of the hoses will vary depending on your van's engine (e.g., V6, V8).
* Professional help: If you are uncomfortable performing this task, it is best to take your van to a qualified mechanic. A seemingly small mistake can lead to significant damage or injury.
This is a general overview. Again, consult your vehicle's repair manual for detailed instructions and diagrams that are specific to your year and model of Ford E-250 van. Improper repair can lead to overheating and engine damage.
