Replace the serpentine belt on a 2013 Nissan Maxima every 60,000 miles to maintain proper operation of the alternator, power steering pump, and air conditioning system. Use the belt diagram to confirm the correct routing, avoiding misalignment that can lead to premature wear or component damage.
Locate the tensioner pulley on the front of the engine and apply a wrench to release tension before removing the old belt. Ensure the replacement belt matches the OEM part number, typically 11720-3TA0A, for consistent fit and performance. Check pulleys for signs of wear, including cracks or wobble, while the belt is off.
Route the new belt according to the diagram, beginning with the crankshaft pulley and following the path around the alternator, water pump, A/C compressor, and power steering pump. Verify that the belt sits properly in all pulley grooves and adjust the tensioner so the belt maintains the recommended tension without slipping. After installation, start the engine and observe the belt movement to confirm correct alignment and operation.
2013 Nissan Maxima Serpentine Belt Diagram Detailed Guide for Maintenance and Replacement
Locate the serpentine belt routing on the front of the 2013 Nissan Maxima engine to ensure correct installation. The belt drives the alternator, power steering pump, water pump, and air conditioning compressor. Misrouting can cause engine overheating or accessory failure.
Before removing the old belt, release tension using the tensioner pulley. Position a wrench on the tensioner and rotate it clockwise to relieve pressure. Slide the belt off the pulleys carefully, noting the path for reference.
Inspect all pulleys for wear or damage. Check the idler and tensioner pulleys for smooth rotation and absence of noise. Replace any components that show grooves, cracks, or wobble.
Use the serpentine belt diagram specific to the 2013 Nissan Maxima to route the new belt correctly. Ensure the belt sits fully in all pulley grooves without twisting. Confirm alignment visually from top and side angles to prevent slipping.
| Pulley | Position | Function |
|---|---|---|
| Crankshaft | Bottom center | Drives main belt rotation |
| Alternator | Top left | Generates electrical power |
| Power Steering Pump | Top right | Provides hydraulic assist |
| Air Conditioning Compressor | Middle left | Compresses refrigerant |
| Water Pump | Middle right | Circulates engine coolant |
| Tensioner | Upper center | Maintains proper belt tension |
| Idler Pulley | Varies by engine variant | Guides belt path and reduces slack |
After installation, rotate the crankshaft manually two full turns to seat the belt and verify correct alignment. Start the engine and observe for smooth operation and proper tension. Adjust if any misalignment or noise occurs.
Replace the serpentine belt every 60,000 miles or if visible wear appears. Regular checks prevent unexpected failures and maintain proper operation of all engine-driven accessories.
Identifying and Locating the Serpentine Belt Components on a 2013 Nissan Maxima
Locate the serpentine belt at the front of the engine, looping around several key components. Begin by identifying the crankshaft pulley at the bottom center; it drives the entire belt system. Above it, find the alternator on the passenger side, responsible for charging the battery and powering electrical systems.
The power steering pump sits on the driver’s side near the top and is directly engaged by the belt. The air conditioning compressor is positioned on the lower passenger side, and the belt wraps around its pulley to maintain A/C functionality. Locate the tensioner pulley near the center of the belt path; it maintains proper belt tension and ensures smooth operation.
Identify the idler pulleys placed along the belt path to guide and redirect the belt efficiently. Each pulley is marked by a smooth, round surface, and they do not connect to a functional accessory but keep the belt routing precise. Confirm alignment by tracing the belt from the crankshaft through the alternator, power steering pump, A/C compressor, tensioner, and idlers, ensuring each pulley follows the correct path.
Use the factory diagram often found on the radiator support or under the hood to double-check component positions. Correct identification prevents improper routing, reduces wear, and maintains system performance. For replacement, release the tensioner to remove the belt safely without forcing or bending components.
Step-by-Step Routing and Installation Instructions for the Serpentine Belt
Release tension on the belt tensioner using a 14mm wrench or ratchet. Rotate the tensioner clockwise to remove the old belt from the pulleys.
- Inspect the crankshaft, alternator, power steering, air conditioning, and idler pulleys for wear, cracks, or debris. Clean each pulley groove.
- Compare the new serpentine belt with the removed belt to confirm length and rib orientation.
- Route the belt around the crankshaft pulley first. Ensure the ribbed side aligns with the pulley grooves.
- Follow the routing diagram to loop the belt around the alternator, power steering pump, air conditioning compressor, and idler pulleys.
- Position the belt over the tensioner pulley last. Pull the tensioner back and slide the belt onto it, then slowly release the tensioner to apply proper tension.
- Check alignment on each pulley. The belt must sit evenly in the grooves without twisting.
- Manually rotate the crankshaft pulley two full turns to verify smooth movement and correct tension.
- Start the engine and observe the belt. Confirm it runs quietly and tracks correctly without slipping or vibration.
Recheck pulley alignment and belt tension after the engine reaches normal operating temperature. Tighten or adjust only if necessary to maintain consistent contact across all pulleys.
Troubleshooting Common Belt Wear, Noise, and Alignment Issues
Inspect the serpentine belt for visible cracks, fraying, or glazing on the ribbed side. Replace the belt immediately if cracks exceed 1/16 inch or if multiple ribs show significant wear.
Listen for squealing or chirping noises while the engine runs. Noise often indicates improper tension or misalignment. Check the belt tensioner for smooth operation and ensure it maintains proper pressure against the belt.
Examine pulley alignment using a straightedge or laser tool. Misaligned pulleys cause uneven wear and noise. Adjust or replace idler pulleys and tensioner if alignment deviation exceeds 1–2 mm across the pulley face.
Inspect belt routing against the 2013 Nissan Maxima diagram. Incorrect routing can produce slipping, noise, and rapid wear. Verify that the belt follows the designated path around the alternator, power steering pump, water pump, and A/C compressor.
Check for oil or coolant contamination on the belt surface. Fluids degrade rubber and accelerate wear. Clean surrounding areas and replace the belt if contamination is present.
Test accessory pulleys by spinning each by hand. Resistance, wobble, or rough rotation signals a faulty bearing. Replace affected components to prevent premature belt failure.
Monitor belt tension regularly, especially after replacement. A properly tensioned belt should deflect about 1/4 inch under moderate finger pressure on the longest span.