Here's a general outline. Consult a repair manual specific to your van's engine (e.g., a Haynes or Chilton manual) for detailed instructions, torque specifications, and diagrams. The exact process will vary slightly depending on the specific engine (e.g., 318, 360).
1. Preparation:
* Disconnect the battery: This is crucial to prevent accidental shorts.
* Gather tools: You'll need various wrenches, sockets, screwdrivers, a transmission jack, an engine hoist, and possibly a puller for stubborn components.
* Consult your repair manual: This will provide specific torque values, component locations, and removal sequences.
* Clear the work area: You'll need ample space around the van.
* Safety first: Wear safety glasses, gloves, and appropriate clothing.
2. Disconnection:
* Disconnect all electrical connections: This includes sensors, wires, and the alternator. Take photos or make notes to ensure proper reconnection.
* Disconnect fuel lines: Carefully drain the fuel tank and disconnect the fuel lines. Be mindful of fuel spillage and flammability.
* Disconnect cooling system: Drain the radiator and disconnect the coolant hoses.
* Disconnect vacuum lines: Carefully disconnect all vacuum lines.
* Remove the air intake system: Disconnect and remove the air cleaner, air intake hose, and any related components.
* Remove exhaust manifolds: Disconnect and remove exhaust manifolds and related components. These can be very heavy and hot.
* Disconnect transmission: This will vary significantly depending on your transmission type (automatic or manual). You'll likely need to support the transmission with a transmission jack. This step often requires separating the transmission from the engine.
* Disconnect drive shafts: Disconnect the drive shafts from the transmission or differential.
3. Engine Removal:
* Support the engine: Use an engine hoist to securely support the engine. Attach the hoist to appropriate engine lifting points (check your repair manual).
* Remove engine mounts: Carefully remove the engine mounts, allowing the engine to be lifted.
* Slowly lift the engine: Carefully lift the engine with the hoist, ensuring that it clears all obstacles. You may need to tilt the engine slightly to navigate around components.
* Remove the engine: Once the engine is clear of the engine bay, carefully maneuver it out of the van.
4. Post-Removal:
* Inspect everything: After the engine is out, inspect all components for damage.
* Clean the engine bay: Clean the engine bay thoroughly to remove any debris or spills.
Important Considerations:
* Transmission: Removing the transmission is often necessary to get the engine out easily. This adds significant complexity to the job.
* Exhaust System: The exhaust system is heavy and potentially hot. Take precautions.
* Hydraulic Press: You may need a hydraulic press for stubborn components.
* Professional help: If you lack experience or the proper tools, it's highly recommended to take your van to a qualified mechanic. This is a labor-intensive and potentially dangerous job.
This is a simplified overview. Always consult a repair manual specific to your 1994 Dodge Ram Van's engine and transmission for detailed, step-by-step instructions. Incorrect procedures can lead to damage to your vehicle or serious injury.
