The check engine light was illuminated on the 2018 Ford Explorer, with diagnostic trouble codes P0301, P0302, and P0300 indicating misfires on multiple cylinders. Upon inspection, the ignition coils were removed from the front bank to access the spark plugs. All spark plugs were found to be extremely loose—not even hand-tight—which allowed combustion gases to escape past the threads, causing misfire events and signs of blow-by. The spark plugs need to re-torqued to factory specifications. Re-torqued all spark plugs to factory specification. Cleared the diagnostic trouble codes. Misfire had returned on cylinder 1. Cylinder 1 ignition coil has failed due to excessive combustion blow buy. Needs cylinder 1 ignition coil and spark plug replaced.
Removed the cylinder 1 ignition coil. Removed the spark plugs and replaced with new. Replaced the ignition coil on cylinder 1. Cleared the diagnostic trouble codes. Road tested vehicle to verify repairs. Vehicle runs and drives as designed.
June R. gave our service a 5 star review on 10/17/2025
Removed the spark plugs and replaced with new. Removed the spark plug wires and replaced with new. Cleared the diagnostic trouble codes. Road tested vehicle to verify repairs. All checks are ok at this time.
Kent S. gave our service a 5 star review on 5/23/2025
Battery is weak. Charged battery and performed load test, failed. Battery is faulty and needs replaced. Also needs battery reset after battery replacement.
Removed the battery and replaced with new. Performed battery reset. Performed battery load test, passed. Vehicle starts as designed.
CA Battery Fee
Duane K. gave our service a 5 star review on 4/21/2025