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2012
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Rough Idle or Engine Misfire

Expert diagnosis and repair solutions for 2012 Ford F-150 Rough Idle or Engine Misfire. Get step-by-step fixes, cost estimates, and professional advice.

Expert Repair Solutions

1
medium$300-$600
Replace faulty ignition coils and injectors to resolve rough idle and misfire issues.
Source: https://www.justanswer.com/ford/p47gt-2012-f-150-5-0-truck-new-coils-new-injectors.html

Repair Steps:

  1. Purchase new ignition coils and injectors
  2. Disconnect the battery to ensure safety
  3. Remove the engine cover to access the ignition coils
  4. Replace the faulty coils and injectors
  5. Reconnect the battery and test the engine
2
hard$500-$1000
Inspect and repair intake and exhaust manifold leaks to address rough idle.
Source: https://www.ford-trucks.com/forums/1602450-misfire-at-idle-13-f150-5-0-a.html

Repair Steps:

  1. Visually inspect the intake and exhaust manifolds for cracks or leaks
  2. Tighten any loose bolts on the manifolds
  3. Replace gaskets if necessary
  4. Perform a smoke test to identify any hidden leaks
  5. Test drive the vehicle to ensure the issue is resolved
3
easyFree under recall
Reprogram the Powertrain Control Module (PCM) as part of the recall to improve engine performance.
Source: https://static.nhtsa.gov/odi/rcl/2019/RCLRPT-19V075-8647.PDF

Repair Steps:

  1. Contact a Ford dealer to schedule a recall service
  2. Bring the vehicle to the dealer for PCM reprogramming
  3. Allow the dealer to perform the reprogramming procedure
  4. Verify the engine performance post-service
4
medium$200-$400
Address TSB-12-10-19 by checking for misfire codes and addressing humidity-related issues.
Source: https://static.nhtsa.gov/odi/tsbs/2019/MC-10169890-0001.pdf

Repair Steps:

  1. Check the vehicle for any stored diagnostic trouble codes (DTCs)
  2. Replace any faulty components identified by the DTCs
  3. Ensure the vehicle is not exposed to excessive moisture
  4. Test drive the vehicle to confirm the issue is resolved

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