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2020
ram 150018 views

Rough Idle or Engine Misfire

Expert diagnosis and repair solutions for 2020 ram 1500 Rough Idle or Engine Misfire. Get step-by-step fixes, cost estimates, and professional advice.

Expert Repair Solutions

1
medium$150-$300 per coil
Replace faulty ignition coils to resolve misfire issues.
Source: https://www.reddit.com/r/ram_trucks/comments/1b0pk8u/misfire_on_2020_ram_1500/

Repair Steps:

  1. Diagnose the misfiring cylinder using a scan tool.
  2. Remove the engine cover to access the ignition coils.
  3. Disconnect the electrical connector and remove the faulty coil.
  4. Install the new coil and reconnect the electrical connector.
  5. Reinstall the engine cover and clear any fault codes.
2
medium$100-$200 per injector
Clean or replace clogged fuel injectors to improve engine performance.
Source: https://5thgenrams.com/community/threads/engine-troubles-rough-idle.33412/

Repair Steps:

  1. Use a fuel injector cleaning kit to clean the injectors.
  2. If cleaning is ineffective, remove and replace the injectors.
  3. Ensure proper seating and connection of the new injectors.
  4. Reassemble the fuel rail and check for leaks.
  5. Test drive the vehicle to confirm the issue is resolved.
3
easy$0-$100 (often covered under warranty)
Update the Powertrain Control Module (PCM) software to the latest version.
Source: https://static.nhtsa.gov/odi/tsbs/2020/MC-10187710-9999.pdf

Repair Steps:

  1. Connect the vehicle to a diagnostic tool capable of updating PCM software.
  2. Download the latest software update from the manufacturer’s database.
  3. Follow the on-screen instructions to install the update.
  4. Verify the update by checking the software version post-installation.
  5. Clear any diagnostic trouble codes and test drive the vehicle.
4
easy$60-$120 for a full set
Inspect and replace spark plugs if worn or damaged.
Source: https://repairpal.com/ram/1500/2020/rough-idle

Repair Steps:

  1. Remove the engine cover to access the spark plugs.
  2. Use a spark plug socket to remove each plug.
  3. Inspect the plugs for wear or damage and replace as necessary.
  4. Install new spark plugs and tighten to the manufacturer's specifications.
  5. Reinstall the engine cover and test the vehicle for improvements.

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