Parts for your 2007 Holden Captiva 5-Ignition coils

2007 Holden Captiva 5 Ignition Coils

Technical references show ignition coils are fitted to petrol versions of the 2007 Holden Captiva 5. The Holden Captiva CG Workshop Manual and GM Global Service Information for the LE5 2.4L inline‑four and LY7 3.2L V6 specify a coil‑on‑plug (COP) ignition system, with one coil per cylinder. ACDelco’s Australian catalogue also lists replacement coils for these engines. Only the 2.0L diesel variant differs—per VM Motori and GM documentation, it’s compression‑ignition and doesn’t use ignition coils (it uses glow plugs instead). The guidance below applies to petrol models.

On a 2007 Captiva 5 petrol, the ignition coils sit directly on top of the spark plugs to transform battery voltage into the high voltage needed to fire the plugs cleanly. This coil‑on‑plug setup improves spark accuracy and reduces losses compared to old‑school leads, helping the Captiva start easily, idle smoothly, and keep fuel economy in check.

Coils aren’t a scheduled service item, but they do wear with heat and vibration. Most owners first notice a failing coil as a misfire under load, a rough idle, sluggish take‑off, or the check engine light with codes like P0300–P0306 or coil circuit faults (P0351+). If that pops up, it’s smart to scan it, swap the suspect coil to another cylinder to confirm the fault follows, and replace as needed. On the 2.4L there are four coils, on the 3.2L V6 there are six. Coils can be done individually, though if the vehicle has high kays and multiple are tired, doing them as a set can save future hassles.

Basic replacement is straightforward under the bonnet: remove the engine cover, unplug the connector, undo the small retaining bolt, lift the coil, and inspect the boot for oil or carbon tracking. Fit the new coil, lightly apply dielectric grease to the boot if recommended by the manufacturer, and refit the bolt and connector. Always follow the workshop manual for torque specs and safety steps. If there’s oil in the plug wells, sort the rocker cover gasket first, otherwise new coils may fail early.

As part of regular servicing, keep to the correct spark plug interval and spec—fresh plugs reduce coil workload. Avoid pressure‑washing the engine bay, and fix any coolant or oil leaks promptly. A healthy battery and good engine grounds also help coils live a long life.

• Signs to watch: misfire under load, rough idle, harder starting, fuel use up, check engine lamp on.
• Good habits: timely plug changes, dry and clean plug wells, correct refit torque, scan and record fault codes.

FAQs

How many ignition coils are on a 2007 Holden Captiva 5?
The petrol 2.4L uses four individual coils (one per cylinder). The 3.2L V6 uses six. The 2.0L diesel doesn’t use ignition coils at all.

Should ignition coils be replaced in pairs or a full set?
It’s fine to replace just the failed coil after confirming the fault. If the vehicle has high kilometres and more than one coil is showing its age, replacing the set can prevent repeat visits.

What’s the best way to diagnose a bad coil on a Captiva?
Scan for codes (misfire or coil circuit), check live misfire counts, and do a cylinder swap test—move the coil to another cylinder and see if the misfire follows. Inspect the boot and plug, and rule out oil in the plug well.