How to Change Transmission Fluid Jeep Grand Cherokee: A Step-by-Step Guide

The Jeep Grand Cherokee is a renowned SUV known for its ruggedness and off-road capabilities. But like any vehicle, it requires regular maintenance to keep it running smoothly. One crucial aspect of this maintenance is changing the transmission fluid. This guide will walk you through the process of how to change transmission fluid Jeep Grand Cherokee, ensuring a smooth and efficient transmission for years to come.

Why Change Transmission Fluid?

Transmission fluid is the lifeblood of your Jeep Grand Cherokee’s automatic transmission. It lubricates the gears, cools the system, and helps transfer power smoothly. Over time, this fluid breaks down, becoming contaminated with debris and losing its viscosity. This can lead to:

• Sluggish shifting: The transmission may struggle to shift smoothly, resulting in rough transitions between gears.
• Transmission overheating: Reduced cooling capacity can lead to overheating, potentially causing damage to the transmission.
• Transmission failure: If left unchecked, the degraded fluid can cause severe damage to the transmission, leading to costly repairs or even replacement.

When to Change Transmission Fluid

The recommended interval for changing transmission fluid in a Jeep Grand Cherokee varies depending on the model year and driving conditions. However, a general guideline is to change it every 50,000 to 75,000 miles or every 3-5 years.

Here are some signs that your transmission fluid may need changing:

• Dark or burnt smelling fluid: Healthy transmission fluid should be a reddish-pink color. If it’s dark brown or black and has a burnt smell, it’s time for a change.
• Slipping or jerking: Experiencing sudden slipping or jerking during gear changes is a strong indicator of low or contaminated fluid.
• Rough shifting: If your transmission shifts roughly or with a delay, it could be a sign of fluid deterioration.

Gather Your Supplies

Before you begin, ensure you have all the necessary materials:

• New transmission fluid: Use the type of fluid recommended for your Jeep Grand Cherokee model year. Consult your owner’s manual for the correct specification.
• Transmission fluid drain pan: A large pan designed to catch the old fluid.
• Torque wrench: For tightening the drain plug and fill bolt to the correct specifications.
• Wrench set: To remove the drain plug and fill bolt.
• Funnel: To pour the new fluid into the transmission.
• Gloves: To protect your hands from the hot fluid and grime.
• Safety glasses: To protect your eyes from splashes.
• Jack and jack stands: To safely lift your Jeep Grand Cherokee.
• Rag: For cleaning up spills and wiping down surfaces.

Step-by-Step Guide for Changing Transmission Fluid

1. Preparation:

• Park your Jeep Grand Cherokee on a level surface and engage the parking brake.
• Locate the transmission pan. It’s typically located on the bottom of the transmission case, near the rear axle.
• Warm up the transmission by driving for a few minutes to allow the fluid to thin out and drain more easily.

2. Drain the Old Fluid:

• Safety First: Wear your gloves and safety glasses.
• Locate the Drain Plug: The drain plug is usually located on the bottom of the transmission pan. It may have a 17mm or 19mm hex head.
• Remove the Drain Plug: Carefully loosen the drain plug using your wrench. Be prepared for hot fluid to pour out.
• Drain the Fluid: Allow the fluid to drain completely into the drain pan.
• Replace the Drain Plug: Once the fluid has drained, clean the drain plug and reinstall it, tightening it to the correct torque specification.

3. Replace the Transmission Filter (Optional):

• Some Jeep Grand Cherokee models have an external transmission filter. If your model does, it’s recommended to replace it during the fluid change.
• Locate the Filter: The filter is typically located near the transmission pan.
• Remove the Filter: Carefully remove the filter, taking note of the orientation of the gasket.
• Install the New Filter: Install the new filter with the gasket facing the correct direction. Tighten it securely.

4. Fill the Transmission with New Fluid:

• Locate the Fill Bolt: The fill bolt is usually located on the side of the transmission case, near the top.
• Remove the Fill Bolt: Remove the fill bolt using your wrench.
• Add New Fluid: Using the funnel, slowly pour the new transmission fluid into the fill hole.
• Check Fluid Level: As you add fluid, periodically check the level by replacing the fill bolt and tightening it slightly. When fluid starts to leak out, you’ve reached the correct level.
• Tighten the Fill Bolt: Once you’ve reached the correct level, tighten the fill bolt to the correct torque specification.

5. Test Drive and Check Fluid Level:

• Test Drive: Take your Jeep Grand Cherokee for a short test drive to allow the fluid to circulate throughout the transmission.
• Check Fluid Level Again: After the test drive, re-check the fluid level and top it off if necessary.

Important Tips and Considerations

• Use the Correct Fluid: Always use the type of transmission fluid specified in your Jeep Grand Cherokee’s owner’s manual. Using the wrong fluid can damage your transmission.
• Be Careful with Hot Fluid: Transmission fluid can be extremely hot, so wear gloves and safety glasses during the process.
• Clean Up Spills Immediately: Transmission fluid can stain concrete and asphalt. Clean up any spills promptly.
• Consider Professional Help: If you’re not comfortable performing this task yourself, it’s best to have it done by a qualified mechanic.

The Final Word: Keep Your Transmission Healthy

By following these steps, you can effectively change the transmission fluid in your Jeep Grand Cherokee, ensuring smooth and reliable shifting for years to come. Remember to perform this maintenance regularly to protect your transmission and avoid costly repairs.

Questions We Hear a Lot

Q: How often should I change the transmission fluid in my Jeep Grand Cherokee?

A: The recommended interval for changing transmission fluid in a Jeep Grand Cherokee is every 50,000 to 75,000 miles or every 3-5 years. However, it’s best to consult your owner’s manual for specific recommendations for your model year.

Q: What type of transmission fluid should I use?

A: The type of transmission fluid you need will depend on your Jeep Grand Cherokee’s model year. Refer to your owner’s manual for the correct specification.

Q: Can I change the transmission fluid myself?

A: Yes, you can change the transmission fluid yourself, but it’s a moderately difficult task. If you’re not comfortable working under the car or with tools, it’s best to have a qualified mechanic do it.

Q: What happens if I don’t change the transmission fluid?

A: If you don’t change the transmission fluid, it can become contaminated and lose its viscosity, leading to sluggish shifting, overheating, and ultimately, transmission failure.

Q: What are the signs that my transmission fluid needs changing?

A: Signs that your transmission fluid needs changing include dark or burnt smelling fluid, slipping or jerking during gear changes, and rough shifting.