how to fix jerking when shifting in Tesla Outback 5th Generation (2015-2019)

Subaru Outback 5th Generation (2015-2019)

Error Codes

2-4 hours

Time

medium

Difficulty

high

Severity

3 min read

597 words

⚠️ Safety Warning

This issue requires immediate attention. If you are not experienced with automotive repairs, consult a professional mechanic. Working on critical systems can be dangerous.

Problem Statement

Learn how to diagnose and fix jerking during gear shifts in Tesla Outback 5th Generation (2015-2019). Step-by-step guide with diagnostic procedures and repair instructions.

Affected Component

Transmission

Estimated Time

2-4 hours

⚠️ Safety Warnings

Important safety information - read before proceeding

•Disconnect the battery before working on electrical systems.
•Allow engine to cool before opening any components related to the transmission.

Symptoms

•Jerking or lurching sensation when shifting gears
•Delayed or harsh shifts between gears
•Unusual engine RPM fluctuations during transitions
•Possible warning lights illuminated on the dashboard
•Decreased fuel efficiency
•Erratic acceleration response

Diagnostic Steps

1
Scan for error codes using an OBD-II scanner to identify transmission-related faults.
2
Check the transmission fluid level and condition; look for discoloration or burnt smell.
3
Inspect the transmission control module (TCM) for any software updates or faults.
4
Test the drivetrain components including the driveshaft and CV joints for wear or damage.
5
Verify the operation of the throttle position sensor and other relevant sensors.
6
Examine the engine mounts for damage or excessive wear which could affect shifting.

Solution

💡 Expert Tip

For complex repairs like this, consider taking photos at each step. This helps if you need to reverse a step or consult with a mechanic. Also, keep all removed parts organized - you may need to reference them during reassembly.

Verification

After completing the repair, verify that the issue has been resolved:

✓Test the affected component to ensure it functions correctly
✓Check for any error codes or warning lights
✓Monitor the vehicle for a few days to ensure the issue does not recur

Prevention Tips

To prevent this issue from occurring again:

•Follow the manufacturer's recommended maintenance schedule
•Address warning signs early before they develop into major issues
•Use quality parts and fluids recommended for your vehicle
•Keep detailed records of all repairs and maintenance

Tools & Equipment Required

•OBD-II scanner
•Socket set
•Fluid pump
•Multimeter
•Jack and jack stands

Parts Required

•Transmission fluid (specified by manufacturer)
•Throttle position sensor (if replacement is needed)
•Driveshaft or CV joints (if damaged)

Related Faults

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Diagnostic Steps

1
Scan for error codes using an OBD-II scanner to identify transmission-related faults.
2
Check the transmission fluid level and condition; look for discoloration or burnt smell.
3
Inspect the transmission control module (TCM) for any software updates or faults.
4
Test the drivetrain components including the driveshaft and CV joints for wear or damage.
5
Verify the operation of the throttle position sensor and other relevant sensors.
6
Examine the engine mounts for damage or excessive wear which could affect shifting.

Solution

1. Preparation

Gather all necessary tools and parts.
Park the vehicle on a level surface and engage the parking brake.
Disconnect the battery to ensure safety while working on electrical components.

2. Transmission Fluid Check and Replacement

Locate the transmission dipstick and remove it.
Check the fluid level; if it's low, add the manufacturer's recommended transmission fluid.
If the fluid is discolored or burnt:
- Drain the old fluid using a fluid pump or a drain pan.
- Replace with new transmission fluid as per manufacturer specifications (typically requires 5-10 quarts depending on the model).
- Reinstall the dipstick and check the level again.

3. Update Transmission Control Module

Connect the OBD-II scanner to the vehicle's diagnostic port.
Follow the manufacturer's instructions to check for TCM updates.
If updates are available, proceed to install them as per the guidance, ensuring the vehicle is in a safe state.

4. Inspect and Replace Damaged Components

Visually inspect the driveshaft and CV joints for any signs of wear or damage.
If damaged, replace the driveshaft or CV joints as necessary:
- Raise the vehicle using a jack and secure with jack stands.
- Remove any protective shields or covers.
- Disconnect the driveshaft from the transmission and rear differential.
- Install the new driveshaft or CV joints and reconnect securely.

5. Sensor Inspection and Replacement

Test the throttle position sensor using a multimeter to ensure it operates within the specified range.
If faulty, disconnect the sensor and replace it with a new component.
Reconnect the battery and clear any fault codes.