Tools Needed:
- Socket wrench
- Screwdriver
- New fan belts (usually two belts: one for the alternator, power steering, etc., and one for the air conditioning)
Steps to Replace and Thread Belts:
1. Locate the Belts:
- Open your vehicle's hood and identify the fan belts.
2. Loosen the Belt Tensioners:
- Locate the belt tensioners. There should be two — one for each belt.
- Using the appropriate wrench, loosen the bolts on the belt tensioners until they are loose enough to allow for belt removal.
3. Remove the Belts:
- Use a screwdriver or your hands to carefully remove the old belts from the pulleys.
4. Install New Belts:
- Take one of the new belts and wrap it around the pulleys of the engine accessories you're concerned with. Make sure the belt is properly aligned on all the pulleys.
- Repeat this step with the other belt if needed.
5. Tighten the Belt Tensioners:
- Use the wrench to tighten the belt tensioners. It's important to apply the correct amount of tension, as too much or too little tension can affect the performance of the belts and the engine. Refer to your Nissan's owner's manual for the proper belt tension specifications.
6. Double-Check the Belt Routing:
- Once you've tightened the belts, double-check that they are properly routed around all the pulleys. Ensure there are no twists or misalignments.
7. Start the Engine and Test:
- Start the engine and let it run for a few minutes. Observe if the belts are running smoothly without slipping or making excessive noise.
8. Retension if Needed:
- After a few minutes of running the engine, recheck the belt tension and make adjustments if needed.
9. Close the Hood:
- Once you're satisfied that the belts are installed and tensioned correctly, close your vehicle's hood.
Remember that this guide is general and may vary slightly based on the exact model of your Nissan 4WD pickup. If you're not comfortable with this task or lack experience in automotive maintenance, it's best to seek assistance from a qualified mechanic or refer to your vehicle's service manual.
