how to replace the timing chain in Toyota Corolla E170 (2013-2019)

Toyota Corolla E170 (2013-2019)

Error Codes

4-8 hours

Time

hard

Difficulty

high

Severity

3 min read

584 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

Step-by-step guide to replace the timing chain in a 2013-2019 Toyota Corolla E170. Learn symptoms, diagnostic steps, and necessary tools.

Affected Component

Engine

Estimated Time

4-8 hours

⚠️ Safety Warnings

Important safety information - read before proceeding

•Disconnect the battery before working on electrical systems.
•Allow the engine to cool before starting work to avoid burns.

Symptoms

•Engine noise or rattling sounds
•Check engine light illuminated
•Poor engine performance or acceleration
•Engine misfires
•Oil leaks near the timing cover
•Difficulty starting the engine

Diagnostic Steps

1
Inspect the engine for any visible signs of wear or damage to the timing chain cover.
2
Use an OBD-II scanner to check for any error codes related to the timing system.
3
Verify the engine oil level and condition, ensuring it is within the proper range and not contaminated.
4
Remove the engine cover and visually inspect the timing chain for slack or wear.
5
Check the timing chain tensioner for proper operation and signs of wear.

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
•Torque wrench
•Plastic trim removal tool
•Engine support brace

Parts Required

•Timing chain
•Timing chain tensioner
•Timing chain guide rails
•Timing cover gasket or gasket maker

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Diagnostic Steps

1
Inspect the engine for any visible signs of wear or damage to the timing chain cover.
2
Use an OBD-II scanner to check for any error codes related to the timing system.
3
Verify the engine oil level and condition, ensuring it is within the proper range and not contaminated.
4
Remove the engine cover and visually inspect the timing chain for slack or wear.
5
Check the timing chain tensioner for proper operation and signs of wear.

Solution

1. Preparation

Gather necessary tools and parts.
Disconnect the battery.
Raise the vehicle using a jack and support it with jack stands.
Remove any components obstructing access to the timing chain cover (e.g., air intake, serpentine belt).

2. Remove Timing Chain Cover

Remove the bolts securing the timing chain cover using a socket set.
Gently pry off the timing chain cover with a plastic trim removal tool to avoid damage.
Clean the old gasket material from the engine block and cover with a scraper.

3. Remove Old Timing Chain and Components

Align the timing marks on the camshaft and crankshaft sprockets as per the service manual.
Remove the tensioner and guide rails.
Disconnect the timing chain from the camshaft and crankshaft sprockets.
Remove the old timing chain from the engine.

4. Install New Timing Chain

Place the new timing chain onto the crankshaft sprocket and align it with the timing marks.
Attach the timing chain to the camshaft sprocket, ensuring proper alignment with timing marks.
Install the new tensioner and guide rails, following the manufacturer's torque specifications.

5. Reassemble Components

Apply a new gasket or gasket maker to the timing chain cover.
Reinstall the timing chain cover and tighten the bolts to the specified torque.
Reattach any other components that were removed (air intake, serpentine belt).

6. Final Checks

Reconnect the battery.
Start the engine and allow it to run for a few minutes, checking for any unusual noises or leaks.
Monitor the engine's performance.