Caution: Crankshaft pulleys are under significant tension, so exercise caution and use proper safety equipment.
1. Engage High Gear:
- Park your car on level ground and engage the parking brake.
- Put the transmission in the highest gear (5th or 6th) to lock the drivetrain and add resistance.
- Start the car and let it idle for a few seconds to build up some compression in the engine.
2. Impact Method (with Breaker Bar and Socket):
- Use a strong breaker bar with a suitable socket that fits your crankshaft pulley bolt.
- Position the breaker bar parallel to the ground, with the socket securely attached to the pulley bolt.
- With one hand firmly holding the breaker bar near the socket, use your other hand to deliver sharp and short hammer strikes on the end of the breaker bar.
- The impacts should generate enough force to loosen the crankshaft pulley bolt.
3. Starter Bump Method:
- Disconnect the ignition coil or fuel pump relay to disable fuel injection and spark while keeping the starter engaged.
- Rotate the key to engage the starter for a split second, while keeping the key turned to the "On" position.
- The momentary engagement of the starter motor should generate a jolt or impact, which can help break loose the crankshaft pulley.
- Repeat this process until the pulley loosens.
4. Use a pry bar:
- Position a pry bar near the bolt or groove on the crankshaft pulley.
- Use a suitable piece of wood or a block to protect the pulley from damage.
- Use the pry bar to gently pry the pulley off the crankshaft while the engine is idling in gear.
5. Alternate Methods:
- If these methods don't work, you may need to use specialized pulley puller tools or a locking tool to hold the flywheel or flex plate in place while attempting to loosen the pulley.
Remember, proper technique and caution are essential when working on your vehicle. If you encounter any difficulties or the pulley remains stuck, it's best to seek assistance from a professional mechanic or consult your car's repair manual for specific instructions related to your vehicle model.
