how to replace the ignition coil in Tesla Outback 5th Generation (2015-2019)

Subaru Outback 5th Generation (2015-2019)

Error Codes

1-2 hours

Time

medium

Difficulty

medium

Severity

3 min read

534 words

Problem Statement

Step-by-step guide to replacing the ignition coil in a 2015-2019 Subaru Outback. Learn about symptoms, diagnostic steps, and tools required.

Affected Component

Engine

Estimated Time

1-2 hours

⚠️ Safety Warnings

Important safety information - read before proceeding

•Disconnect the battery before working on electrical systems to prevent shocks or shorts.
•Allow the engine to cool before performing any repairs.

Symptoms

•Check engine light illuminated
•Engine misfire or rough idle
•Decreased fuel efficiency
•Difficulty starting the engine
•Increased emissions

Diagnostic Steps

1
Scan the vehicle’s onboard diagnostics (OBD-II) for error codes related to the ignition system.
2
Inspect the ignition coil visually for any signs of damage or wear.
3
Measure the resistance of the ignition coil using a multimeter to ensure it is within manufacturer specifications.
4
Check the condition of the spark plugs, as worn plugs can affect ignition coil performance.
5
Test the electrical connection to the ignition coil for continuity and proper voltage supply.

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

•Socket set
•Ratchet
•Torque wrench
•Multimeter
•Dielectric grease

Parts Required

•New ignition coil(s)
•New spark plugs (if necessary)

Related Faults

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Diagnostic Steps

1
Scan the vehicle’s onboard diagnostics (OBD-II) for error codes related to the ignition system.
2
Inspect the ignition coil visually for any signs of damage or wear.
3
Measure the resistance of the ignition coil using a multimeter to ensure it is within manufacturer specifications.
4
Check the condition of the spark plugs, as worn plugs can affect ignition coil performance.
5
Test the electrical connection to the ignition coil for continuity and proper voltage supply.

Solution

1. Preparation

Tools Required: Socket set, ratchet, torque wrench, multimeter, dielectric grease.
Ensure the vehicle is parked on a level surface and the engine is turned off and cool.
Disconnect the negative battery terminal to prevent electrical short circuits.

2. Remove Engine Cover (if applicable)

Locate the engine cover and remove any screws or clips holding it in place.
Gently lift off the cover and set it aside.

3. Remove Ignition Coil

Identify the ignition coil(s) on the engine. There will typically be one coil per cylinder.
Disconnect the electrical connector from the ignition coil by pressing on the tab and pulling it straight out.
Remove the bolt(s) securing the ignition coil using the socket set.
Carefully pull the ignition coil straight out of the spark plug well. If it is stuck, wiggle it gently to release it.

4. Install New Ignition Coil

Apply a small amount of dielectric grease to the bottom of the new ignition coil to ensure a good seal.
Insert the new ignition coil into the spark plug well, ensuring it seats properly.
Reinstall the bolt(s) to secure the ignition coil, and torque to the manufacturer's specifications (typically 7-10 ft-lbs).
Reconnect the electrical connector until it clicks into place.

5. Reassemble and Test

Replace the engine cover and secure it with the screws or clips that were removed.
Reconnect the negative battery terminal.
Start the engine and check for proper operation, ensuring the check engine light is off.