Unleash the Full Potential of Your 2017 Pathfinder: How to Change Transmission Fluid Like a Pro

The transmission is a crucial component of your Nissan Pathfinder, responsible for transferring power from the engine to the wheels. Just like any other vital part, it needs proper maintenance to ensure optimal performance and longevity. One of the most important maintenance tasks is changing the transmission fluid. This guide will walk you through the process of how to change transmission fluid Pathfinder 2017, equipping you with the knowledge and confidence to tackle this job yourself.

Why Change Transmission Fluid?

Transmission fluid serves several critical functions:

• Lubrication: It reduces friction between moving parts, preventing wear and tear.
• Cooling: It carries heat away from the transmission, preventing overheating.
• Cleaning: It suspends and removes debris, keeping the transmission clean.

Over time, transmission fluid breaks down, loses its viscosity, and becomes contaminated with debris. This can lead to:

• Rough shifting: The transmission may shift harshly or slip.
• Reduced fuel economy: The transmission may work harder, consuming more fuel.
• Transmission failure: In severe cases, the transmission may fail completely.

To prevent these issues, it’s essential to change the transmission fluid at regular intervals. Nissan recommends changing the transmission fluid in the Pathfinder 2017 every 60,000 miles or 5 years, whichever comes first. However, if you frequently tow heavy loads or drive in harsh conditions, you may need to change it more often.

Gathering Your Tools and Supplies

Before you begin, gather the necessary tools and supplies:

• New transmission fluid: Use the type and quantity specified in your Pathfinder’s owner’s manual. Nissan recommends using Nissan Genuine Transmission Fluid (NS-3).
• Drain pan: A large pan to catch the old fluid.
• Torque wrench: For tightening bolts to the correct specifications.
• Socket wrench set: To remove and tighten bolts.
• Funnel: For pouring new fluid into the transmission.
• Gloves: To protect your hands from the hot fluid.
• Safety glasses: To protect your eyes from spills.
• Jack and jack stands: To lift the vehicle safely.
• Wrench: To loosen the drain plug.
• Rag: To clean up spills.

Preparing Your Pathfinder for Fluid Change

1. Park your Pathfinder on a level surface.
2. Engage the parking brake.
3. Allow the engine to cool down completely. The transmission fluid will be hot after driving, so it’s crucial to ensure safety.
4. Locate the transmission pan. It’s usually located on the bottom of the transmission, close to the rear axle.
5. Place the drain pan under the transmission pan. Position the pan directly beneath the drain plug to catch the old fluid.

Draining the Old Transmission Fluid

1. Locate the drain plug. It’s usually a 10mm or 12mm bolt on the bottom of the transmission pan.
2. Loosen the drain plug with a wrench. Be careful not to overtighten.
3. Remove the drain plug and allow the fluid to drain completely. This may take a few minutes.
4. Inspect the old fluid. If it’s dark, burnt, or smells bad, it’s time for a change.
5. Replace the drain plug and tighten it securely. Use a torque wrench to tighten the plug to the correct specifications, as listed in your owner’s manual.

Filling the Transmission with New Fluid

1. Locate the transmission fill plug. It’s usually on the side of the transmission, near the top.
2. Remove the fill plug. This will allow you to add new fluid.
3. Use a funnel to pour new transmission fluid into the fill hole. Add fluid slowly, checking the level frequently.
4. Once the fluid level reaches the fill hole, replace the fill plug and tighten it securely.
5. Start the engine and run it for a few minutes. This will allow the fluid to circulate through the transmission.
6. Check the fluid level again. If it’s low, add more fluid until it reaches the fill hole.
7. Repeat steps 5 and 6 until the fluid level remains constant.

Testing the Transmission

1. Drive your Pathfinder for a few miles. This will allow the new fluid to distribute evenly throughout the transmission.
2. Observe how the transmission shifts. The shifts should be smooth and responsive.
3. Check for any leaks. If you see any leaks, tighten the drain plug and fill plug, or contact a mechanic.

Final Thoughts: Keeping Your Transmission Healthy

Changing the transmission fluid in your Pathfinder 2017 is a relatively simple task that can significantly extend the life of your transmission. By following these steps, you can ensure smooth shifting and prevent costly repairs down the line.

What You Need to Know

1. How often should I change the transmission fluid in my Pathfinder 2017?

Nissan recommends changing the transmission fluid every 60,000 miles or 5 years, whichever comes first. However, if you frequently tow heavy loads or drive in harsh conditions, you may need to change it more often.

2. What type of transmission fluid should I use?

Nissan recommends using Nissan Genuine Transmission Fluid (NS-3) for the Pathfinder 2017.

3. What are the signs of a failing transmission?

Signs of a failing transmission include rough shifting, slipping, delayed engagement, whining noises, and fluid leaks.

4. Can I change the transmission fluid myself?

Yes, you can change the transmission fluid yourself if you are comfortable working on your vehicle. However, if you are unsure, it is best to consult a mechanic.

5. What are the risks of not changing the transmission fluid?

Not changing the transmission fluid can lead to a number of problems, including rough shifting, reduced fuel economy, and transmission failure.