2016 Nissan Murano Transmission Problems

Hey Murano owners! Experiencing some less-than-smooth shifting or hearing unusual noises from your 2016 Nissan Murano? You're not alone. The 2016 Murano, while generally a reliable vehicle, has been known to experience some transmission-related issues. Let's dive into the common problems, what might be causing them, and, most importantly, how to fix them.

Common 2016 Nissan Murano Transmission Problems

The most frequently reported issues with the 2016 Murano's Continuously Variable Transmission (CVT) include:

Shuddering or Jerking: This often happens during acceleration or when maintaining a constant speed. It feels like the car is briefly hesitating or vibrating.
Hesitation or Delay in Acceleration: You press the gas pedal, but the car doesn't immediately respond. This can be especially concerning when merging onto highways or making quick maneuvers.
Unusual Noises: Whining, humming, or clunking sounds coming from the transmission area are definitely red flags. Pay close attention to when these noises occur – are they present at all speeds, or only during specific actions?
Transmission Slippage: The engine revs up, but the car doesn't accelerate as quickly as it should. This can be dangerous and can lead to further damage if not addressed.
"Service Engine Soon" Light: Of course, the dreaded check engine light can indicate a transmission problem. This requires immediate diagnostics to determine the underlying issue.
Complete Transmission Failure: In worst-case scenarios, the transmission can fail completely, leaving you stranded.

Possible Causes

So, what's causing these transmission troubles? Here are some of the most common culprits:

Degraded or Contaminated Transmission Fluid

This is often the first place to look. CVT fluid is crucial for proper operation, and it degrades over time. Regular fluid changes are essential. If the fluid is low, dirty, or contaminated, it can lead to all sorts of problems, including slippage, shuddering, and overheating.

Practical Tip: Check your transmission fluid level and condition regularly. Consult your owner's manual for the recommended type of CVT fluid and the service interval. Do NOT use regular automatic transmission fluid in a CVT – it will damage the transmission.

Valve Body Issues

The valve body is the "brain" of the transmission, controlling the flow of fluid to different parts. If the valve body is malfunctioning due to wear, debris, or electrical issues, it can cause shifting problems and other symptoms.

Damaged or Worn CVT Belt (Chain)

The CVT uses a belt or chain to transfer power between the input and output pulleys. Over time, this belt can stretch, wear down, or even break, leading to slippage, jerking, and complete failure.

Faulty Sensors and Solenoids

The transmission relies on various sensors and solenoids to monitor its operation and control shifting. A faulty sensor or solenoid can send incorrect information to the transmission control module (TCM), resulting in shifting problems.

Transmission Control Module (TCM) Problems

The TCM is the computer that controls the transmission. If the TCM is faulty, it can cause a wide range of issues, including shifting problems, error codes, and complete transmission failure.

Overheating

Excessive heat can damage the transmission's internal components and shorten its lifespan. Overheating can be caused by low fluid, a clogged transmission cooler, or excessive towing.

Troubleshooting and Solutions

Okay, so you suspect you have a transmission problem. What should you do? Here's a step-by-step approach:

1. Initial Inspection and Fluid Check

First, visually inspect the transmission for any leaks or damage. Then, check the transmission fluid level and condition.

Tools Needed: Rags, gloves, possibly a funnel, and the correct type of CVT fluid (check your owner's manual).

Action: If the fluid is low, top it off with the correct type. If it's dirty or contaminated, consider a transmission fluid flush and filter replacement.

2. Diagnostic Scan

If the "Service Engine Soon" light is on, have the vehicle scanned for trouble codes. These codes can provide valuable clues about the nature of the problem.

Tools Needed: OBD-II scanner (available at most auto parts stores or repair shops).

Action: Record all trouble codes and research their meaning. Common CVT-related codes might include P0744, P1777, P0746, P17F0, P17F1, P17F2.

3. Transmission Fluid Flush and Filter Replacement

Even if the fluid level is okay, a fluid flush can sometimes resolve minor issues, especially if the fluid is old or contaminated. Make sure the shop uses the correct CVT fluid specified for your Nissan Murano.

Approximate Cost: $150 - $300 (depending on the shop and fluid type).

4. Valve Body Inspection and Repair

If the trouble codes or symptoms point to a valve body issue, it may need to be inspected, cleaned, or replaced. This is a more complex repair that's best left to a qualified mechanic.

Approximate Cost: $500 - $1500 (depending on the extent of the damage and whether the valve body can be rebuilt or needs to be replaced).

5. Sensor and Solenoid Replacement

If a sensor or solenoid is found to be faulty, it will need to be replaced. This is usually a relatively straightforward repair.

Approximate Cost: $200 - $500 (depending on the sensor or solenoid being replaced).

6. TCM Repair or Replacement

If the TCM is the problem, it may need to be reprogrammed or replaced. This requires specialized equipment and expertise.

Approximate Cost: $500 - $2000 (depending on whether the TCM can be reprogrammed or needs to be replaced).

7. Transmission Replacement or Rebuild

In severe cases, the transmission may need to be replaced or rebuilt. This is the most expensive option, but it may be necessary if the transmission is severely damaged.

Approximate Cost: $3000 - $7000 (depending on whether you opt for a new, rebuilt, or used transmission and the labor costs involved).

Preventative Measures

The best way to avoid transmission problems is to take preventative measures:

Regular Transmission Fluid Changes: Follow the recommended service interval for transmission fluid changes in your owner's manual. This is crucial for maintaining the transmission's health.
Avoid Harsh Driving: Avoid aggressive acceleration, hard braking, and towing heavy loads, as these can put extra stress on the transmission.
Monitor Transmission Temperature: If you frequently tow or drive in hot conditions, consider installing a transmission temperature gauge to monitor its temperature.
Address Problems Early: Don't ignore any warning signs of transmission problems. The sooner you address them, the less likely they are to cause serious damage.

Important Note: CVT transmissions are complex, and diagnosing and repairing them can be challenging. If you're not comfortable working on your own car, it's best to take it to a qualified mechanic who has experience with CVT transmissions. A misdiagnosis or improper repair can lead to further damage and even complete transmission failure. Also, be wary of shops offering extremely low prices for transmission repairs, as they may be cutting corners or using inferior parts.

I hope this information helps you understand and address any transmission problems you may be experiencing with your 2016 Nissan Murano. Remember to stay proactive with maintenance, and don't hesitate to seek professional help when needed. Good luck!