Parts for your 2016 Ford Territory-Ignition coils

2016 Ford Territory ignition coils

According to Ford Australia’s SZ II Territory specifications and workshop service information, the 2016 Ford Territory was offered with two engines: a 4.0‑litre petrol inline‑six and a 2.7‑litre TDCi turbo‑diesel V6. The petrol engine uses six individual coil‑on‑plug ignition coils controlled by the PCM, as outlined in Ford workshop procedures and common COP system design notes from major ignition manufacturers. The diesel variant does not use ignition coils because compression ignition engines ignite fuel by heat from high compression rather than a spark.

For owners of the petrol 2016 Territory, ignition coils do the heavy lifting in the spark system. Each coil sits directly on its spark plug, stepping up the battery’s 12 volts to the thousands needed to jump the plug gap at precisely the right moment. Being coil‑on‑plug keeps things tidy under the bonnet, cuts down energy losses through leads, and helps the Territory run smoothly and efficiently.

While coils aren’t a routine “replace on schedule” item, they are wear components that live with plenty of heat and vibration. Signs a coil is on the way out include a check engine light with P030X misfire codes, a rough idle, hesitation under load, hard starts, and higher fuel use. A quick look can also tell a story: cracked housings, swollen or brittle boots, carbon tracking, or oil down the plug tubes (often from a rocker cover gasket leak) all point to trouble. If one fails at higher mileage, it’s fine to replace just the faulty unit, though many techs will change the affected pair or bank to reduce future comebacks.

Good practice during a service includes:

• Replacing spark plugs on time and inspecting coil boots for hardening, tears, or tracking.
• Using a dab of dielectric grease in the boots to keep moisture out and ease future removal.
• Keeping the battery and charging system healthy—low voltage is tough on coils.
• Avoiding aggressive washing around the coil area, water ingress can cause misfires.

Stick with quality coils that meet OE spec so dwell control, spark energy, and RFI suppression stay on point. For the diesel Territory owners, no coils are fitted or required—glow plugs and fuel system health are the key cold‑start and combustion players on that engine.

Popular questions about 2016 Ford Territory ignition coils

Does the 2016 Ford Territory diesel have ignition coils?
No. The 2.7‑litre TDCi is a compression‑ignition engine and doesn’t use spark to light the mixture, so there are no ignition coils. Instead, it relies on fuel injection timing, high compression, and glow plugs for cold starts.

How often should ignition coils be replaced on a 2016 Ford Territory petrol?
There’s no fixed interval. Coils are replaced when they show symptoms like misfires, rough running, or related fault codes. Many last well past 150,000 km, but heat, oil contamination, and old plugs can shorten their life. Inspect coils whenever plugs are changed.

Can a failing ignition coil damage the catalytic converter?
Yes, if a misfire is ignored. Unburnt fuel from a dead miss can overheat and damage the cat. If the check engine light flashes or there’s a noticeable misfire, it’s best to diagnose and fix the coil or plug issue promptly.