Parts for your 2017 Ford Ranger-Ignition coils

2017 Ford Ranger ignition coils: are they used?

Short answer: on Australian and New Zealand–spec 2017 Ford Rangers, ignition coils aren’t fitted or required. That year’s local Ranger range runs the Duratorq TDCi diesel engines (2.2L four‑cylinder and 3.2L five‑cylinder). Per Ford Australia’s PX MkII specifications and the Ford Workshop Manual (Ranger PX II, Diesel, Section 303), these engines use compression ignition, not spark ignition—so there are no spark plugs and no ignition coils. Ford’s parts catalogues for 2017 AU/NZ VINs likewise list glow plugs, injectors and a high‑pressure fuel system, but no ignition coils.

Because a diesel makes its own heat by compressing air in the cylinder, the fuel self‑ignites when injected—no spark needed. For cold starts, the Ranger relies on glow plugs and a glow control module to warm the chambers. Once running, the engine management system controls fuel pressure and injector timing to keep it smooth and efficient.

• No coils fitted: diesel = compression ignition, not spark ignition.
• Starting aids are glow plugs, not spark plugs.
• Service focus shifts to fuel filters, injectors, glow plugs, batteries and intake/EGR cleanliness.

If someone’s chasing a misfire on a 2017 Ranger and thinking “coils”, they’re looking in the wrong spot. Rough running is more likely tied to a tired injector, a clogged fuel filter, low fuel rail pressure, carbon build‑up in the intake/EGR, or a weak battery affecting cranking speed and glow operation.

Worth noting for completeness: some Rangers in other markets and model years do use coils (e.g., the later 2.3‑litre EcoBoost petrol in North America from 2019). Earlier petrol PX Rangers existed in limited markets, too. But for AU/NZ 2017 models, coils aren’t part of the picture. When ordering parts, use the VIN so the catalog pulls the correct diesel components.

• Does a 2017 Ford Ranger have ignition coils?
  For Australian and New Zealand models, no. Ford’s PX MkII specs and the Ranger PX II Workshop Manual show only diesel engines for 2017, which don’t use coils or spark plugs.
• How does a diesel Ranger ignite fuel without spark plugs?
  By compressing air until it’s hot enough to ignite diesel when it’s injected. Glow plugs help with cold starts, once warm, the engine relies on precise fuel injection and compression heat—no spark needed.
• Are there any Rangers that do use ignition coils?
  Yes, petrol‑engined Rangers in some markets and years (for example, the 2.3 EcoBoost in later North American models) use coils. Always check the VIN and engine code before ordering ignition parts.