Parts for your 1999 Mitsubishi Pajero-Ignition coils

1999 Mitsubishi Pajero ignition coils

Based on Mitsubishi factory service manuals for NL/NM Pajero (1997–2000), the Mitsubishi ASA/EPC parts catalogue, and aftermarket listings from NGK and Bosch, ignition coils are fitted to 1999 Pajero petrol engines (3.0L 6G72 and 3.5L 6G74). These engines use either a distributorless coil-pack (wasted-spark) or coil-on-plug arrangements depending on exact engine code and market. By contrast, the 2.8L 4M40 turbo‑diesel is compression‑ignition and uses glow plugs, not ignition coils. So, coils are relevant for petrol Pajeros from 1999, but not for the diesel variant.

For petrol models, the ignition coil’s job is to step the battery’s 12 volts up to the tens of thousands of volts needed to jump the spark plug gap and fire the air–fuel mix. Whether it’s a three‑tower coil pack feeding leads to the V6 or individual coils over each plug, healthy coils keep starts crisp, idle smooth, power on tap, and fuel use in check. As these cars clock up the kilometres, heat and vibration can break down windings and insulation, causing intermittent misfires that many owners first notice under load or on a wet morning.

Servicing a 1999 Pajero’s ignition system is a great time to think about coils alongside spark plugs and, if fitted, leads. Coils don’t have a strict replacement interval, but after 150,000–200,000 km many original units are tired. If chasing a misfire, scan for codes, check plug condition and gaps, and measure coil primary/secondary resistance against the spec in the workshop manual. On coil‑on‑plug setups, inspect the boots for carbon tracking and replace any crusty ones. A light smear of dielectric grease on the boot lips helps keep moisture out under our changeable Aussie and Kiwi weather.

• Common symptoms of failing coils: rough idle, hesitation under load, poor economy, hard starts, and a flashing MIL during a misfire.
• Best practice: replace spark plugs with quality, correct‑heat items at the same time, on coil‑pack engines, consider doing leads as a set.
• Fitment tips: match coils by engine code/VIN, avoid mixing brands across banks, and torque coil‑on‑plug hold‑downs lightly to avoid cracking housings.

Look after the coils and the Pajero’s V6 stays smooth and dependable, whether it’s touring the coast or towing the boat to the ramp.

How many ignition coils does a 1999 Pajero have?

It depends on the engine and market. Many 6G72/6G74 petrol Pajeros use a distributorless system with a three‑tower coil pack (three coils firing six cylinders in wasted‑spark pairs). Some later 6G74 variants run coil‑on‑plug with one coil per cylinder. The 2.8L 4M40 diesel has no ignition coils at all. The quickest way to be sure is to check the engine code and the parts listing by VIN.

When should the ignition coils be replaced?

There’s no fixed interval. Replace coils when testing confirms a fault or if you’re chasing consistent misfires, rough running, or hard starts. As preventative maintenance, many owners choose to renew original coils around 150,000–200,000 km, ideally with fresh spark plugs and, where applicable, new leads or COP boots.

Can driving with a bad coil harm the catalytic converter?

Yes. A misfiring cylinder can dump unburnt fuel into the exhaust, overheating and damaging the catalytic converter. If the MIL flashes or the engine feels like it’s dropping a cylinder, it’s wise to diagnose and fix the coil or related ignition parts promptly.