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Recipe - Ford Transit Gasoline V6 NA (3.7 Ti-VCT 2015-2019 / 3.5 PFDi 2020-present)

Reliability build

Reliability tier: aggregated - verify before ordering, see /disclosure/

Misfire, rough idle under load or hard start on a naturally aspirated Transit V6: idle-heavy fleet duty wears plugs early - full plug set plus the coil that fails the swap test (mode Ignition service: plugs and COP coils).

Parts

• ford-transit-gas-v6: spark-plug (honest catalog gap) - spark plug set (catalog gap - source by engine) (qty 6)
• ford-transit-gas-v6: ignition-coil (honest catalog gap) - ignition coil, only the one that fails the swap test (catalog gap) (qty 1)

Install order

1. read the misfire codes and find the cylinder
2. swap the suspect coil to another cylinder; if the misfire moves, the coil is bad
3. renew the full plug set

Expected outcome

No misfire codes, smooth idle under load.

DIY or shop: DIY-friendly