Holden Commodore 2019

Holden Commodore 2019 Q&As

Check out real-world situations relating to the Holden Commodore here, particularly what our experts have to say about them.

• Why is the engine light on in my 2010 Holden Commodore

  There are literally hundreds of things that can cause a check-engine light in a modern, computer-controlled car. A problem with the ignition, fuel system, emissions-control system, air-intake, lubrication, cooling and much, much more can cause this light to illuminate.

  The best way to proceed is to have the vehicle electronically scanned. That way, the computer can tell the mechanic where the problem is and, hopefully, precisely what’s causing the check-engine light to flicker on.

  For the record, however, a common fault with the V6 engine in this series of Commodores is a stretched timing chain that the computer interprets as incorrect valve timing (which it is). Plenty of owners of this model have discovered this as the cause of their check-engine light.

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• My Holden SS V8 commodore is chugging

  The first thing to do is make sure your battery is earthed properly and all the relevant electrical contacts are tight and clean. Low voltage or a poor connection can easily cause the problems you're seeing, especially if they've all occurred more or less at the same time.

  The next thing is to have the vehicle electronically scanned. That will tell you what faults the on-board computer has spotted, and you can then tackle them logically instead of replacing parts that don't fix the actual problem. The rough running could be anything from a dud oxygen sensor to a fuel-injection problem and lots in between.

  I would suspect the heating and air-conditioning problems are separate to the engine's poor running, but anything's possible when a car's electronics start playing up.

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• Can my 2005 Commodore VZ run on e10?

  It's good news. Your car is indeed compatible with E10 fuel which means you can use the slightly cheaper fuel without risking damage to your vehicle. The car should also run exactly the same as it does on normal unleaded petrol, although you may find you use slightly more fuel per 100km. This should, however, be more than offset by the savings you'll make at the pump.

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• Will a VT Commodore V6 3.8-litre engine fit into a 2004 WK Statesman V6 3.8?

  Both those models of Holden used the same engine; the L36 (Holden's internal code) Ecotec V6. As such, you should be able to fit the engine from the VT Commodore into the Statesman with very few other changes. The biggest hurdle will be if the Commodore donor car was a manual-transmission vehicle, as the ECU may be different to the Statesman's unit to allow for control of the electronic transmission. The best bet is to retain the Statesman's wiring and computer and change over only the engine hardware from the Commodore.

  The other (minor) catch is that the VT's version of the V6 was tuned for 147kW, while the later version of the same engine in the Statesman was good for 152kW. There was a small torque difference, too (304Nm plays 305Nm). So you'll be trading off a small amount of performance but, realistically, not enough to notice.

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