why does my Toyota Corolla E170 (2013-2019) have smoke coming from the exhaust?

Toyota Corolla E170 (2013-2019)

Error Codes

2-4 hours

Time

medium

Difficulty

high

Severity

3 min read

547 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 smoke emissions from the exhaust in Toyota Corolla E170 (2013-2019). Step-by-step guide with symptoms and solutions.

Affected Component

Engine

Estimated Time

2-4 hours

⚠️ Safety Warnings

Important safety information - read before proceeding

•Ensure the engine is cool before starting work
•Disconnect the battery to prevent electrical shorts

Symptoms

•Blue smoke during acceleration
•Black smoke when idling or accelerating
•White smoke upon starting the engine
•Rough engine idle
•Decreased fuel efficiency
•Unusual engine noises

Diagnostic Steps

1
Scan for error codes using an OBD-II scanner
2
Inspect engine oil level and condition
3
Check coolant level and condition
4
Examine the air filter
5
Perform a compression test
6
Inspect the fuel injectors

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
•Compression tester
•Multimeter
•Basic hand tools

Parts Required

•PCV valve
•Engine oil
•Oil filter
•Air filter
•Fuel injectors (if necessary)
•Head gasket (if necessary)

Related Faults

Share this solution

Comments

No comments yet

Be the first to share your thoughts

Back to Generation

Solution

1. Preparation

Tools Required: OBD-II scanner, socket set, compression tester, multimeter, basic hand tools.
Safety Warnings: Ensure the engine is cool before starting work. Disconnect the battery to prevent electrical shorts.

2. Address Blue Smoke (Oil Consumption)

Check and replace PCV valve:
- Remove the PCV valve using a socket set.
- Inspect for clogs; replace if necessary.
Perform an oil change:
- Drain the old oil and replace with the manufacturer's recommended oil.
- Replace the oil filter as well.

3. Address Black Smoke (Rich Fuel Mixture)

Replace air filter:
- Open the airbox and remove the old filter.
- Install a new, clean air filter.
Inspect and clean or replace fuel injectors:
- Remove the fuel rail.
- Clean injectors using a cleaning kit or replace them if necessary.
Adjust or replace the Engine Control Unit (ECU) tune:
- Reprogram the ECU if necessary to ensure correct fuel-air mixture.

4. Address White Smoke (Coolant Leak)

Inspect head gasket:
- Conduct a leak-down test to check for head gasket failure.
- If failed, replace the head gasket:
  - Remove the cylinder head.
  - Clean the surfaces and install a new gasket, torquing to manufacturer specifications.