Parts for your 2013 Ford Ranger-Spark plugs

2013 Ford Ranger spark plugs — are they used or not?

For Australian and New Zealand models of the 2013 Ford Ranger (PX, Mk1), spark plugs aren’t fitted or required. These utes were supplied with diesel engines only — the 2.2‑litre four‑cylinder and 3.2‑litre five‑cylinder Duratorq TDCi — which use compression ignition, not spark ignition. That means no spark plugs to service. This is supported by Ford’s PX Ranger Owner’s Manual (2011–2014) and the Ford Workshop Manual, which show a glow plug system and list no spark plug maintenance. It also aligns with diesel engine fundamentals outlined by SAE and the Bosch Automotive Handbook: diesel fuel-air mixtures ignite from heat created by compression, so spark plugs aren’t part of the system.

Instead of spark plugs, these Rangers use glow plugs to assist cold starts and help the engine run cleanly when it’s chilly. You’ll also see a glow plug indicator on the dash — again, something noted in the factory owner’s literature. If someone’s got a rare or grey‑import petrol Ranger from another market (for example, a 2.5‑litre Duratec), that one would use spark plugs, but that configuration wasn’t the norm for Australia or New Zealand in 2013.

What to service instead of spark plugs? Focus on the diesel bits that actually matter for reliable running and emissions:

• Glow plugs and the glow plug control module (check if cold starts get rough, smoky, or slow).
• Fuel filter changes on time — water and fine debris are the enemies of common‑rail systems.
• Battery health — low voltage can cripple glow plug performance and crank speed.
• Air intake and EGR cleanliness — soot build‑up hurts drivability and economy.

Signs the glow plug system might need attention include hard starting on cold mornings, white smoke after start, a flashing or lit glow plug lamp, or a rough idle until warm. Glow plugs don’t always have a fixed replacement interval, but many techs will test them around the 100,000–150,000 km mark or when symptoms appear. When replacing, use the correct spec parts and proper torque — over‑tightening can damage the head, under‑tightening can cause poor heat transfer. A scan tool check of glow plug duty and fault codes is a smart first step during diagnosis.

Popular questions about 2013 Ford Ranger spark plugs

Does a 2013 Ford Ranger have spark plugs?
For Australia and New Zealand diesel models (2.2 TDCi and 3.2 TDCi), no — they don’t use spark plugs. They use glow plugs for cold starting. Only petrol variants sold in other regions use spark plugs, and those were not standard for AU/NZ in 2013.

What should be serviced instead of spark plugs on a 2013 Ranger?
Prioritise the glow plugs and their control module, fuel filter changes, battery condition, and intake/EGR cleanliness. These areas have far more impact on starting, economy and emissions in a diesel Ranger than anything spark‑plug related.

How can someone tell if their 2013 Ranger is the rare petrol version with spark plugs?
Check the fuel label at the filler, the engine code in the owner’s manual or under‑bonnet label (diesel: Duratorq TDCi P4AT 2.2 or P5AT 3.2), and look for ignition coils/leads on the engine. If it’s petrol (e.g., Duratec 2.5 in some markets), it will have spark plugs and a different service schedule.