Holden Problems

You haven’t given me much to go on here, Rebecca. There are plenty of warning lights on a dashboard these days, and even a 2005 model will have a variety of lights that illuminate to tell you something’s not right.

There are also a host of reasons for the car not starting, so it’s all a bit hit and miss at this stage. To gain a better idea of what’s happening, you could grab the owner’s manual and try to identify what symbol has lit up and which of the car’s systems it represents. From there, you can start to narrow down the causes, but an electronic scan of the car at a workshop sounds like a pretty wise investment. The warning light might even be a by-product of the engine’s refusal to start, and may go out when the engine is finally running.

High fuel consumption was a major criticism of these cars when they were brand-new. The combination of a heavy car and a large capacity engine meant that the Crewman was never a fuel sipper. To be honest, the absolute best way to reduce its fuel consumption is in the way you drive it. A light foot on the accelerator might just have a bigger effect than you imagine when it comes to squeezing every kilometre out of every litre.

But there are other things to do as well. Start with the tyres. A tyre that is under-inflated can cause a vehicle to use more fuel, but frequent tyre-inflation pressure checks can help. Of course, the car’s safety is dependent on correct tyre pressures, too, so it’s not just fuel economy at stake here. Either way, start at about 30 or 32psi (more if you’re towing or carrying heavy loads) and don’t let the pressures drop below that level. Correct wheel alignment can also influence fuel economy and don’t forget to keep the engine tuned and running sweetly as a well-tuned engine will always use less fuel than one that is out of adjustment. Ute owners often fall into the trap of carting around a lot more gear than they need (because they can). Removing weight from the vehicle’s tray will also help cut fuel bills.

The Holden Captiva has a terrible reputation in this department, and plenty of owners have had ongoing problems with the electronics in these vehicles which weren’t actually Holdens at all, but rather rebadged Daewoos. It’s a bit of a surprise to learn that a scan of the vehicle doesn’t show up any fault codes, but that also makes us think that perhaps you have a major failure of the vehicle’s body computer which controls all the functions you’re now being warned about on the dashboard. And if the body computer itself is in the process of failing, then it may not respond to the scanning process in a logical manner.

That said, the problem could be caused by something as simple as a poor earth in the car’s electrical circuitry, but experience with the Captiva suggests it will be something more complex and probably more expensive. Don’t rule out a failed electrical connection somewhere in the car’s wiring loom. The catch with the Captiva is that the cost of repairs is often greater than the retained value of the car itself, at which point you’re at an ownership cross-roads. The reality is that your car is probably only worth about $8000 (perhaps less) and a lot less as a trade-in. Spending thousands of dollars to fix it doesn’t add up to too many people.

The first response of most mechanics on this would be that you have a head gasket leak in the engine. Coolant in the oil and/or oil in the coolant are classic symptoms of this. It happens because the faulty head gasket allows the two fluids to mix but, depending on exactly where the gasket fails, you don’t necessary get both symptoms. A workshop can pressure test the engine’s cooling system and perform what’s called a TK test to show up any contaminants in the coolant that have found their way there via a blown head gasket.

But before you go tearing into the engine, check the service records to find out how old the coolant is. Coolant will discolour over time and kilometres and what you’re seeing as a `milky colour’ might simply be old coolant that has gone cloudy and needs changing.

Depending on what sounds the engine is making will determine whether the engine is a throwaway or can be fixed. But if the consensus is that the engine in your car is beyond redemption, then I reckon a second-hand engine from a wrecked Captiva would be the best bet. I don’t think the car itself would be worth enough money to justify a rebuilt engine which could run to $10,000 or more.

Nobody wants to tell you this, but fundamentally, the Captiva was a pretty ordinary car. Lots of owners had lots of transmission problems (which you already know about) and plenty of diesel engines destroyed their turbochargers and – in some cases – the rest of the engine in the process. The petrol V6 was no beacon of excellence either, with a terrifying propensity to consume timing chains.

Who at Holden has rejected your claim for help in repairing the car? If it was the dealer, I’d simply go around that business and talk directly to Holden’s customer service department. The fact that the car has a full Holden service history might sway opinion at head office, but I wouldn’t be going to the bank on it given the age of the vehicle.

It all depends on what engine is fitted to your car, Karen, as Holden used a range of gearboxes in this series of Commodores. If your car is the base-model version (the Omega) it will be fitted with a four-speed automatic (code-named the 4L60E). If your car is an SV6, it will have either a five-speed automatic (5L40E) or a six-speed manual (the Aisin D173/AY6 unit). If your car is a V8 Commodore, it will have either the six-speed automatic (6L80) or a six-speed manual (Tremec T56) fitted.

Of all those transmission options, the five-speed automatic was the odd one out as it was only used from the launch of the VE until the first facelift in 2008 when it was replaced by a six-speed automatic.

The prime suspect for this is a blocked vent that normally funnels condensation from the air-conditioning system to the outside of the car. If this vent becomes blocked or split, the condensation can enter the cabin. Other possibilities include a damaged heater matrix which can leak coolant into the cabin or a sunroof with blocked drainage channels that can also leak into the vehicle.

Make sure the engine is tuned properly at all times, resist the urge to carry gear you don’t need (utes are bad for this) and make sure the tyres are correctly inflated. All those things will directly affect how much fuel your car uses. But really, the biggest change you can make to the Crewman’s drinking habits it to control your right foot. Driving behaviour will have a much greater affect than anything else, but it’s worth noting that the Holden Crewman earned a reputation for being a guzzler early in its life.

Open the bonnet of the car and find the build plate. It will probably be attached to either the firewall or the suspension tower. The plate is a small, metal plate that lists information such as the car’s model, build number, its engine details, trim code, the build date and the colour code. This information can then be given to a paint shop and the correct colour brewed up to make for a perfect colour match for repairs and touch-ups.

The prices of second-hand cars have sky-rocketed recently due to a lack of supply. People are simply not selling their old cars at the usual rate (as trade-ins and private sales) so the laws of supply and demand apply. That is; more demand plus less supply equals higher prices. This phenomenon has been most strongly felt in the case of locally-made Holdens and Fords, perhaps because of nostalgia and the `they don’t make ‘em any more’ factor. Either way, it’s true that the second-hand Holden Calais that cost $6000 this time last year can be worth almost double that now.

With just 120,000km showing, your car is a relatively low-mileage example and the fact that it’s a V8 is good news. Beyond that, however, you haven’t given me much to go on. For a start, 2006 was a change-over year for Holden models; the VZ left showrooms and the new VE model entered. The difference between a VZ and VE in price is significant, particularly in V8 form. I’d also need to know whether your car is a Calais V. All those things have a bearing on value.

For the record, though, a VE Calais sedan in good condition with similar kilometres to yours would probably be advertised for around the $14,000 mark or even more. And that’s almost twice what it was worth just a year ago.