Repair Guide: Fixing an Erratic Transmission Shift in a 2014 Infiniti QX60
Problems with transmission shifts in the Infiniti QX60 from 2014 model year can be challenging yet rewarding to fix. This guide will take you through a detailed step-by-step procedure to diagnose and correct this issue.
Diagnostics
Before we proceed, it's essential to diagnose the issue properly. Look for the following symptoms to ensure you are dealing with an erratic transmission:
- Uneven gear shifting while driving
- Difficulty changing gears
- Slipping gears
Confirm these symptoms before proceeding with the repair.
Materials Needed
- Set of socket wrenches
- Jacks or a hydraulic lift
- New transmission control module (if necessary)
- New transmission control solenoids (if necessary)
- New transmission fluid
Steps to Repair
- Use jacks or a hydraulic lift to elevate the car safely.
- Start by checking the transmission control module. It regulates the activation of transmission solenoids, which control the fluid flow in the transmission. Any issue with these components can cause erratic shifting.
- Next, look for signs of damage, burns, or corrosion on the module, and do the same for the control solenoids. If any part looks damaged or worn out, it will need to be replaced.
- Remove and replace the faulty components, then carefully tighten all wires and connections.
- Refill the transmission fluid. Always adhere to the recommended fluid level; overfilling can lead to other issues like fluid leakages.
- Finally, lower the car and go for a test drive to check if the gear shifting has improved. If not, it might be time to consult a professional mechanic as the issue might be more complex.
Tips and Warnings
Here are a few pointers and potential pitfalls to keep in mind:
- Always disconnect the battery before starting any repair to avoid electric shocks.
- Make sure not to mix old and new transmission fluid. Old, dirty fluid mixing with new fluid can deteriorate the performance.
- Use adequate safety measures when lifting the vehicle. Using unstable or inadequate lifting gear can lead to accidents.
If you follow the steps, tips, and warnings provided in this guide carefully, there should be no further issues with your Infiniti QX60 transmission. Good luck!