Car Fixed
GarageProLogin
2019
nissan altima21 views

Rough Idle or Engine Misfire

Expert diagnosis and repair solutions for 2019 nissan altima Rough Idle or Engine Misfire. Get step-by-step fixes, cost estimates, and professional advice.

Expert Repair Solutions

1
medium$150-$300
Replace faulty ignition coils to resolve misfire issues, especially in cylinder 3.
Source: https://www.justanswer.com/nissan/r50of-2019-nissan-altima-2-5-misfire-cylinder-owner-replaced.html

Repair Steps:

  1. Identify the misfiring cylinder using a diagnostic tool.
  2. Remove the engine cover to access the ignition coils.
  3. Disconnect the electrical connector and remove the faulty ignition coil.
  4. Install the new ignition coil and reconnect the electrical connector.
  5. Reattach the engine cover and clear any error codes.
2
medium$100-$200
Inspect and repair vacuum leaks to address rough idle issues.
Source: https://repairpal.com/nissan/altima/2019/rough-idle

Repair Steps:

  1. Use a smoke machine to identify any vacuum leaks in the intake system.
  2. Inspect hoses and connections for cracks or disconnections.
  3. Replace or repair any damaged hoses or connections.
  4. Re-test the system to ensure no further leaks are present.
3
easy$50-$100
Clean or replace spark plugs to improve engine performance and resolve rough idle.
Source: https://shop.advanceautoparts.com/r/advice/car-maintenance/common-problems-of-the-nissan-altima-and-how-to-fix-them

Repair Steps:

  1. Remove the engine cover to access the spark plugs.
  2. Use a spark plug socket to remove each spark plug.
  3. Inspect the spark plugs for wear or carbon buildup.
  4. Clean the spark plugs with a wire brush or replace them if necessary.
  5. Reinstall the spark plugs and engine cover.
4
mediumFree under warranty
Reprogram the ECM to address false MIL illumination and potential misfire codes.
Source: https://static.nhtsa.gov/odi/tsbs/2019/MC-10161343-9999.pdf

Repair Steps:

  1. Connect a diagnostic tool to the vehicle's OBD-II port.
  2. Verify the current ECM software version.
  3. Download and install the latest ECM software update from Nissan.
  4. Clear any stored error codes and test drive the vehicle to confirm the fix.

Get a Personalized Diagnosis

Get AI-powered repair suggestions specific to your vehicle's symptoms and history.

Start Free Diagnosis →
Browse more common problems