2012 Nissan Quest Transmission For Sale

Experiencing transmission troubles with your 2012 Nissan Quest? You're not alone. While the 2012 Quest is known for its spacious interior and comfortable ride, the CVT (Continuously Variable Transmission) can sometimes present challenges as it ages. This article will help you understand common issues, explore potential solutions, and guide you through the process of finding a replacement transmission if that becomes necessary.

Common 2012 Nissan Quest Transmission Problems

The CVT in the 2012 Quest, while designed for smooth and efficient performance, is susceptible to specific problems. Recognizing these early can save you significant money and prevent further damage. Here are some of the most frequently reported issues:

Slipping or Hesitation: This is often characterized by the engine revving high without a corresponding increase in speed. You might notice it most when accelerating from a stop or trying to pass another vehicle.
Jerky or Erratic Shifting: While a CVT doesn't have traditional gears, it should still provide a smooth, seamless transition. If you feel a noticeable jolt or shudder during acceleration or deceleration, it's a sign of a problem.
Whining or Humming Noise: Unusual noises emanating from the transmission area, especially during acceleration, are a telltale sign of wear and tear or internal damage. The sound may change pitch with vehicle speed.
Delayed Engagement: This manifests as a delay between shifting into Drive or Reverse and the vehicle actually moving. This can be dangerous, especially in tight parking situations.
Transmission Warning Light: The most obvious indicator is the illumination of the transmission warning light (often an exclamation point inside a gear) on your dashboard. This warrants immediate attention.
Overheating: CVTs are sensitive to overheating. If your Quest is consistently running hot, especially during warmer weather or heavy use, the transmission may be struggling.

It's important to note that these symptoms can also be caused by other factors, such as low transmission fluid, a faulty sensor, or even engine problems. Therefore, a proper diagnosis is crucial.

Diagnosing the Problem

Before jumping to the conclusion that you need a new transmission, it's essential to have the issue properly diagnosed. Here's a breakdown of the diagnostic process:

Check the Transmission Fluid: Begin by checking the transmission fluid level and condition. Use the dipstick (if equipped – some models don't have one). The fluid should be a light reddish-pink color and should not smell burnt. Low fluid or dark, burnt-smelling fluid are clear indicators of a problem.
Visual Inspection: Look for any signs of leaks around the transmission housing, seals, and cooler lines.
OBD-II Scan: Use an OBD-II scanner to check for any Diagnostic Trouble Codes (DTCs) related to the transmission. These codes can provide valuable clues about the source of the problem. Common codes related to CVT issues include P0744, P0746, P1777, P1778, and P1779.
Professional Inspection: If you're not comfortable performing these checks yourself, or if the problem persists after addressing the fluid, it's best to take your Quest to a qualified mechanic or transmission specialist. They have the expertise and specialized tools to accurately diagnose the issue.

Possible Solutions (From Simple to Complex)

Once you have a diagnosis, you can explore the appropriate solutions. It's best to start with the simplest and least expensive options:

Transmission Fluid Change: If the fluid is low or contaminated, a transmission fluid change (using the *correct* Nissan CVT fluid – NS-2 or NS-3 depending on the specific model year and any TSB updates) might resolve the issue. Do NOT use generic transmission fluid. The Nissan CVT is very sensitive to the specific formulation. Expect to pay between $150 - $300 for this service at a shop. DIY is possible, but requires careful attention to detail and proper disposal of the old fluid.
Sensor Replacement: Faulty sensors can sometimes trigger transmission problems. Replacing a faulty speed sensor, for example, might be a relatively inexpensive fix. These typically range from $100 - $400 installed, depending on the sensor and labor costs.
Valve Body Repair or Replacement: The valve body controls the flow of fluid within the transmission. A faulty valve body can cause shifting problems. Sometimes, cleaning or rebuilding the valve body can resolve the issue. A replacement can cost $500 - $1500 installed.
Transmission Rebuild: A transmission rebuild involves disassembling the transmission, inspecting all the internal components, replacing worn or damaged parts, and reassembling the transmission. This can be a cost-effective alternative to a complete replacement, but it's crucial to find a reputable transmission shop with experience rebuilding CVTs. Expect to pay $2500 - $4500 for a quality rebuild, with a warranty.
Transmission Replacement: If the damage to the transmission is extensive, a replacement might be the only option. This is the most expensive solution, but it offers the most reliable long-term fix.

Finding a 2012 Nissan Quest Transmission For Sale

If you've determined that a replacement transmission is necessary, you have several options:

New Transmission from Nissan: A new transmission directly from Nissan will be the most expensive option, but it comes with the peace of mind of a factory warranty. Contact your local Nissan dealer for pricing and availability. Expect to pay $4000 - $6000 for the transmission alone, plus labor.
Remanufactured Transmission: A remanufactured transmission is a used transmission that has been completely disassembled, cleaned, inspected, and rebuilt with new or reconditioned parts. These transmissions often come with a warranty and are a more affordable alternative to a new transmission. Reputable remanufacturers include Jasper Engines & Transmissions and ATK Remanufactured Transmissions. Prices typically range from $2500 - $4500 including labor.
Used Transmission: A used transmission is the least expensive option, but it also carries the highest risk. You'll typically find used transmissions at salvage yards or online marketplaces like eBay. It's essential to carefully inspect the transmission before purchasing it and to inquire about its history and mileage. Understand that used transmissions typically come with little to no warranty. Costs can range from $800 - $2500 including labor, depending on mileage and condition.

Where to Look for a Transmission

Here are some resources for finding a replacement transmission:

Local Salvage Yards: Check with local salvage yards or auto recyclers for used transmissions. Be sure to ask about warranty options.
Online Marketplaces: Websites like eBay, Craigslist, and Facebook Marketplace can be a source of used transmissions. Exercise caution and thoroughly vet the seller before making a purchase.
Remanufactured Transmission Dealers: Contact remanufactured transmission dealers directly, such as Jasper or ATK, or search for authorized installers in your area.
Online Auto Parts Retailers: Websites like RockAuto.com often carry both new and remanufactured transmissions.

Important Considerations When Buying a Replacement Transmission

Before you purchase a replacement transmission, keep the following in mind:

Warranty: Always inquire about the warranty offered with the transmission. A longer warranty provides greater peace of mind.
Mileage: If you're buying a used transmission, ask about the mileage. Lower mileage is generally better.
Condition: Inspect the transmission carefully for any signs of damage or wear.
Compatibility: Ensure that the transmission is compatible with your specific 2012 Nissan Quest model and engine. This is crucial! Double-check the VIN and transmission codes with a professional.
Installation: Factor in the cost of installation when budgeting for a replacement transmission. The labor cost can vary depending on the mechanic or transmission shop you choose.
Reputation: Research the seller or installer to ensure they have a good reputation and a history of providing quality products and services. Check online reviews and ask for references.

Installation Tips

Installing a transmission is a complex task best left to experienced mechanics. However, if you're a seasoned DIYer with the necessary tools and knowledge, here are some general tips:

Safety First: Always disconnect the battery before working on the transmission. Use jack stands to support the vehicle securely.
Gather Your Tools: You'll need a variety of tools, including wrenches, sockets, screwdrivers, a transmission jack, and potentially specialized tools for disconnecting the transmission cooler lines.
Follow the Service Manual: Refer to the Nissan service manual for detailed instructions and torque specifications.
Take Pictures: Take pictures of the wiring and hose connections before disconnecting them to ensure you can reconnect them correctly.
Cleanliness is Key: Keep the work area clean and organized to prevent contamination of the transmission.
Proper Fluid: Use the correct type of transmission fluid specified by Nissan (NS-2 or NS-3, depending on your specific model).
Professional Help: If you're unsure about any step of the process, seek professional help.

Typical labor costs for transmission replacement range from $800 - $1500, depending on the shop and the complexity of the job.

Preventive Maintenance to Extend Transmission Life

Once you have a working transmission, proper maintenance is crucial to prevent future problems. Here are some tips to extend the life of your 2012 Nissan Quest's transmission:

Regular Fluid Changes: Follow Nissan's recommended transmission fluid change intervals (typically every 30,000 - 60,000 miles, but consult your owner's manual or a trusted mechanic). Using the correct fluid (NS-2 or NS-3) is critical.
Avoid Hard Acceleration: Excessive hard acceleration and sudden stops can put undue stress on the transmission.
Don't Overload the Vehicle: Avoid exceeding the vehicle's weight capacity, as this can strain the transmission.
Address Issues Promptly: Don't ignore any warning signs of transmission problems. Addressing them early can prevent more significant damage.
Consider an Auxiliary Cooler: If you frequently tow or drive in hot climates, consider installing an auxiliary transmission cooler to help keep the fluid temperature down.

By understanding the common issues with the 2012 Nissan Quest CVT transmission, knowing how to diagnose problems, and exploring the available solutions, you can make informed decisions about repairing or replacing your transmission and keep your Quest running smoothly for years to come. Good luck!