how to replace the timing chain on a Toyota Corolla E170 (2013-2019)?

Toyota Corolla E170 (2013-2019)

Error Codes

4-8 hours

Time

hard

Difficulty

high

Severity

4 min read

643 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 on a 2013-2019 Toyota Corolla E170. Learn symptoms, diagnostic steps, and necessary tools and parts.

Affected Component

Engine

Estimated Time

4-8 hours

⚠️ Safety Warnings

Important safety information - read before proceeding

•Disconnect the battery before working on electrical components.
•Allow the engine to cool before working on it to avoid burns.

Symptoms

•Timing chain noise (rattling or slapping sounds)
•Engine misfire or rough running
•Check engine light illuminated
•Oil leaks from the timing cover
•Decreased engine performance
•Difficulty starting the engine

Diagnostic Steps

1
Inspect for external oil leaks around the timing cover and seals.
2
Use an OBD-II scanner to check for any error codes related to the timing system.
3
Perform a visual inspection of the timing chain and surrounding components for wear or damage.
4
Check engine oil level and condition, ensuring it meets specifications.
5
Listen for unusual noises from the engine during idle and acceleration.

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
•Torque wrench
•Timing chain tool kit
•Engine support bar

Parts Required

•New timing chain
•Timing chain tensioner
•Timing chain guide rails
•Timing cover gasket
•Engine oil

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Diagnostic Steps

1
Inspect for external oil leaks around the timing cover and seals.
2
Use an OBD-II scanner to check for any error codes related to the timing system.
3
Perform a visual inspection of the timing chain and surrounding components for wear or damage.
4
Check engine oil level and condition, ensuring it meets specifications.
5
Listen for unusual noises from the engine during idle and acceleration.

Solution

1. Preparation

Tools Required:
- Socket set
- Torque wrench
- Timing chain tool kit
- Engine support bar (if necessary)
Disconnect the negative battery terminal.
Raise the vehicle and secure it on jack stands.

2. Remove Engine Components

2.1. Remove the Engine Cover
- Unscrew and remove the plastic engine cover.
2.2. Drain Engine Oil
- Place a drain pan under the oil pan, remove the drain plug, and let the oil drain completely.
2.3. Remove the Serpentine Belt
- Use a socket to release tension on the belt tensioner and remove the serpentine belt.
2.4. Remove the Front Engine Mount
- Remove bolts securing the front engine mount and lift the engine slightly using an engine support bar if needed.

3. Timing Chain Access

3.1. Remove the Timing Cover
- Remove the bolts securing the timing cover and gently pry it off. Take care not to damage the gasket.
3.2. Align Timing Marks
- Rotate the crankshaft using a socket on the crankshaft pulley until the timing marks on the crankshaft and camshaft gears are aligned.

4. Timing Chain Replacement

4.1. Remove the Old Timing Chain
- Carefully remove the tensioner and guide rails.
- Detach the old timing chain from the camshaft and crankshaft gears.
4.2. Install New Timing Chain
- Position the new timing chain according to the alignment marks.
- Install new tensioner and guide rails, ensuring they are properly seated.

5. Reassemble Engine Components

5.1. Reinstall Timing Cover
- Clean the mating surfaces and install a new timing cover gasket.
- Bolt the timing cover back in place, following the torque specifications.
5.2. Reinstall Engine Mount
- Secure the front engine mount back in place.
5.3. Reinstall Serpentine Belt
- Route the serpentine belt according to the belt routing diagram and apply tension.
5.4. Reinstall Engine Cover
- Place the plastic engine cover back and secure it with screws.

6. Final Steps

Refill the engine oil through the oil filler cap.
Reconnect the negative battery terminal.