2019 RAM ProMaster 2500
Mileage
100,139
Service Date
2/7/2025
Services Performed
- Found Misfire on cylinder one. Ignition coil was showing an intermittent fire per graph. Swapped ignition coil from cylinder 1 to cylinder three to see if coil would break down on a different cylinder. After swapping ignition coil around vehicle did not misfire any more. test drove vehicle for 6 miles with no misfire. let vehicle set for two hours to cool down and then test drove another 3 miles let hot soak and then an additional 6 miles. Vehicle has not misfired since coil swap. Seems to have been a bad connection at coil to spark plug or coil to wiring harness. Will need client to drive some to see if problem returns.
Bob Z. gave our service a 5 star review on 2/12/2025
