Car Fixed
GarageProLogin
2008
honda civic25 views

Rough Idle or Engine Misfire

Expert diagnosis and repair solutions for 2008 honda civic 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.
Source: https://repairpal.com/honda/civic/2008/rough-idle

Repair Steps:

  1. Locate the ignition coils on the engine.
  2. Disconnect the electrical connectors from the coils.
  3. Remove the bolts securing the coils and pull them out.
  4. Install new ignition coils and secure them with bolts.
  5. Reconnect the electrical connectors.
2
easy$50-$100
Replace worn or fouled spark plugs to improve engine performance.
Source: https://www.facebook.com/groups/talkbedford/posts/2331503147206554/

Repair Steps:

  1. Remove the engine cover to access the spark plugs.
  2. Use a spark plug socket to remove the old spark plugs.
  3. Check the gap on the new spark plugs and adjust if necessary.
  4. Install the new spark plugs and tighten them to the specified torque.
  5. Reinstall the engine cover.
3
easy$20-$50
Inspect and replace the PCV valve to address potential vacuum leaks.
Source: https://www.8thcivic.com/threads/misfiring-all-cylinders.660701/

Repair Steps:

  1. Locate the PCV valve on the engine.
  2. Remove the hose connected to the PCV valve.
  3. Unscrew or pull out the old PCV valve.
  4. Install the new PCV valve and reconnect the hose.
4
easy$10-$30
Clean the Mass Air Flow (MAF) sensor to resolve rough idle and hesitation.
Source: https://www.youtube.com/watch?v=a9K-E2a1BRw

Repair Steps:

  1. Disconnect the electrical connector from the MAF sensor.
  2. Remove the screws securing the MAF sensor.
  3. Carefully remove the MAF sensor from the intake.
  4. Spray MAF sensor cleaner onto the sensor elements.
  5. Allow the sensor to dry completely before reinstalling.
5
medium$100-$150
Perform a compression test to diagnose potential internal engine issues.
Source: https://www.quora.com/2008-Honda-Civic-misfire-in-all-cylinders-the-cel-started-blinking-and-lost-the-ability-to-accelerate-Pulled-over-and-restarted-car-and-had-a-solid-cel-light-with-normal-acceleration-Can-anyone-point-me-in-the-right

Repair Steps:

  1. Remove the spark plugs to access the cylinders.
  2. Insert a compression gauge into the spark plug hole.
  3. Crank the engine and record the compression reading.
  4. Repeat for all cylinders and compare readings.
  5. Investigate further if any cylinder shows low compression.

Get a Personalized Diagnosis

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

Start Free Diagnosis →
Browse more common problems