Tools You'll Likely Need:
* Repair manual: Absolutely essential.
* Jack and jack stands: Safety first!
* Wheel chocks: For added safety.
* Socket set and wrenches: Various sizes, including metric and possibly SAE.
* Torque wrench: Crucial for proper tightening of bolts.
* Drain pan: For oil.
* New oil pump: Make sure you get the correct part number for your engine.
* New oil filter: Always replace this when changing the oil.
* New oil: The correct weight and quantity for your engine.
* New oil pump gasket: Don't reuse the old one.
* Pry bar (possibly): May be needed to help separate parts.
* Clean rags or shop towels: Keep things clean.
* Clean work area: Essential for avoiding contamination.
* Possibly a timing chain cover gasket: Inspect this and replace if damaged.
General Steps (Consult your repair manual for specifics):
1. Safety First: Disconnect the battery negative terminal. Raise the truck securely with a jack and jack stands. Place wheel chocks on the wheels.
2. Drain the Oil: Drain the engine oil into a drain pan.
3. Remove the Oil Pan: This often requires removing the lower engine splash guard or other components. You'll need to disconnect and remove various sensors and/or components attached to the oil pan.
4. Remove the Timing Cover (Likely): Access to the oil pump usually requires removing the timing cover. This is a complex step often involving removing the timing chain and potentially the crankshaft pulley. Be extremely careful and pay close attention to the timing chain's position. Incorrect reassembly can cause severe engine damage.
5. Remove the Oil Pump: Once the timing cover is off, you'll access the oil pump. It's usually held in place by bolts. Carefully remove the bolts and the pump. Take note of the orientation and any specific installation procedures.
6. Clean and Inspect: Clean the oil pump mounting surface on the engine block. Inspect the oil pump pickup tube for damage or debris. Replace the oil pump gasket.
7. Install the New Oil Pump: Carefully install the new oil pump, ensuring it's properly seated and aligned. Tighten the bolts to the specifications in your repair manual.
8. Reassemble: Reinstall the timing cover, ensuring a proper seal and paying attention to the timing chain and all associated components. Reinstall the oil pan, making sure the gasket is properly seated.
9. Refill with Oil: Refill the engine with the correct amount and type of oil. Replace the oil filter.
10. Check for Leaks: Start the engine and check for any oil leaks. Let the engine run for a few minutes to allow the oil pressure to build. Check the oil level.
Important Considerations:
* Timing Chain: The timing chain is critical. If you're not experienced working on engines, consider having a professional handle this job. Incorrect retiming can bend valves, leading to significant engine damage.
* Repair Manual: This is not a complete guide. You absolutely need a repair manual specific to your 1996 Ford Ranger 2.3L engine. It will provide detailed instructions, torque specifications, and diagrams.
* Professional Help: If you are uncomfortable with any part of this process, take your truck to a qualified mechanic. The cost of a professional repair will be far less than the cost of a damaged engine.
This job is complex and requires significant mechanical skill and knowledge. Failing to follow proper procedures can result in severe engine damage. If you're unsure about any step, seek professional assistance.
