Parts for your 2015 Ford Ranger-Ignition coils

2015 Ford Ranger ignition coils: not fitted on Aussie and Kiwi diesel models

For the 2015 Ford Ranger sold in Australia and New Zealand, ignition coils aren’t a thing. Those utes are almost exclusively fitted with the Duratorq TDCi diesels — the 2.2‑litre four-cylinder and 3.2‑litre five‑cylinder — which do not use ignition coils or spark plugs. Technical references that back this up include the Ford Workshop Manual for PX Ranger (Sections 303‑00 and 303‑04B/04C), which details glow plug and common‑rail injection systems with no ignition system components, the 2015 Ranger Owner’s Manual maintenance schedule for AU/NZ, which lists no spark plug service for diesel variants, and Ford’s parts catalogues/ETIS, which provide glow plug and injector listings for diesel VINs with no ignition coil part numbers.

Why no coils? Diesel engines ignite fuel from the heat of compression, not a spark. The Ranger’s common‑rail system uses very high fuel pressure and precise injector timing to fire each cylinder. For cold starts, it relies on glow plugs and engine management rather than any coil‑and‑spark setup. So on a 2015 Ranger diesel, there’s simply nothing called an “ignition coil” to service or replace.

What should owners look after instead? If there’s a misfire‑like shudder, hard start, or rough idle on a diesel Ranger, the usual suspects aren’t coils — they’re fuel and air system items. Keeping on top of scheduled services and investigating performance issues should focus on:

• Fuel system: quality diesel, timely fuel filter changes, injector health and leak‑back checks.
• Air and emissions: clean air filter, EGR/intake soot build‑up, MAP/MAF sensor condition, and boost leaks.
• Cold‑start aids: glow plugs and the glow plug control circuit.

Edge case worth noting: in some overseas markets a petrol‑engined Ranger was offered, and those do run coil‑on‑plug ignition. If a 2015 Ranger in Australia or New Zealand is a private import with a petrol engine, it will have ignition coils (one over each spark plug). To be sure, check the VIN/engine code and the service schedule: diesel Duratorq TDCi lists glow plugs and no spark plugs, a petrol Duratec lists spark plugs and coils.

FAQs

Does a 2015 Ford Ranger have ignition coils?
For Australia and New Zealand models with the 2.2L or 3.2L Duratorq TDCi diesels, no — they don’t use ignition coils. Only rare petrol‑engine imports would have coil‑on‑plug units.

What causes rough running on a 2015 Ranger diesel if there are no coils?
Common culprits include injector wear or contamination, a blocked fuel filter, low fuel pressure, EGR/intake soot build‑up, MAP/MAF sensor faults, boost leaks, or tired glow plugs affecting cold starts.

How can someone tell if their Ranger has coils?
Check the build plate or VIN engine code and the fuel type. Duratorq TDCi diesels won’t list spark plugs in the service schedule and won’t have coils. A petrol Ranger will have coil‑on‑plug units visible on top of the engine and a spark plug replacement interval in the book.