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Failure mode - Ford Transit Gasoline V6 NA (3.7 Ti-VCT 2015-2019 / 3.5 PFDi 2020-present)
Ignition service: plugs and COP coils
Reliability tier: aggregated - verify before ordering, see /disclosure/
Symptoms
- misfire DTCs
- rough idle under load
- hard start
Compare with the other causes of the same sign on this engine: hard start, long crank or no-start (2 causes) · misfire, rough idle, hesitation or surging
Root cause
Standard NA-V6 ignition wear; the Transit duty cycle (idle-heavy fleet work) shortens plug life.
Diagnosis
Fixes
plug set + failed coil(s) per the swap test ()
- ford-transit-gas-v6: spark-plug (honest catalog gap)
- ford-transit-gas-v6: ignition-coil (honest catalog gap)
Prevalence
common