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2014
ram 150021 views

Rough Idle or Engine Misfire

Expert diagnosis and repair solutions for 2014 ram 1500 Rough Idle or Engine Misfire. Get step-by-step fixes, cost estimates, and professional advice.

Expert Repair Solutions

1
medium$150-$300
Replace faulty spark plugs and ignition coils to resolve misfire and rough idle issues.
Source: https://repairpal.com/ram/1500/2014/rough-idle

Repair Steps:

  1. Purchase new spark plugs and ignition coils.
  2. Remove the engine cover to access the ignition system.
  3. Disconnect the ignition coil connectors and remove the coils.
  4. Replace the spark plugs with new ones.
  5. Install new ignition coils and reconnect the connectors.
  6. Reattach the engine cover.
2
medium$100-$200
Inspect and repair vacuum leaks which may cause rough idle.
Source: https://www.ramforum.com/threads/rough-idle-misfires-rough-acceleration-any-help.144860/

Repair Steps:

  1. Use a vacuum gauge to check for leaks.
  2. Inspect all vacuum hoses for cracks or disconnections.
  3. Replace any damaged hoses.
  4. Check the intake manifold gasket for leaks and replace if necessary.
3
easyFree at dealership under warranty
Perform a software update on the Powertrain Control Module (PCM) to address misfire issues.
Source: https://static.nhtsa.gov/odi/tsbs/2025/MC-11013168-0001.pdf

Repair Steps:

  1. Visit an authorized dealership.
  2. Request a PCM software update as per TSB 18-025-14.
  3. Allow the technician to perform the update using the dealership's diagnostic tools.
  4. Test drive the vehicle to ensure the issue is resolved.
4
hard$500-$1000
Replace the high pressure fuel pump (HPFP) if experiencing fuel starvation issues.
Source: https://www.ramforumz.com/threads/rough-idle-sounds-like-a-misfire-but-no-codes-mpg-drop-too.233851/

Repair Steps:

  1. Purchase a new high pressure fuel pump.
  2. Relieve the fuel system pressure.
  3. Remove the intake manifold to access the HPFP.
  4. Disconnect the fuel lines and electrical connectors from the HPFP.
  5. Remove the old HPFP and install the new one.
  6. Reconnect the fuel lines and electrical connectors.
  7. Reinstall the intake manifold and test the vehicle.
5
hard$400-$800
Replace the crankshaft position sensor tone wheel to prevent engine stalling.
Source: https://static.nhtsa.gov/odi/tsbs/2020/MC-10187710-9999.pdf

Repair Steps:

  1. Visit an authorized dealership to confirm recall eligibility.
  2. Request replacement of the crankshaft position sensor tone wheel under recall 20V475000.
  3. Allow the dealership to perform the replacement.
  4. Test drive the vehicle to ensure the issue is resolved.

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