Holden Captiva 2014 Problems

This is a very contentious issue and occurs when the car decides it’s in mortal danger if it’s driven any farther. In many cases a car will go into limp-home mode with reduced power to get you home without further damage, but in the Captiva’s case, it can go one step beyond limp-home mode and simply shut itself down, lock the driver out of the equation and refuse all attempts at being moved. This has severe ramifications if it does so on a level crossing, for instance.

In any case, this condition is usually triggered by a serious fault to do with the engine and can include a lack of oil or a severe overheating condition. When things cool down after a while, the car will sometimes restart, but in the meantime, it’s not going anywhere. The suspicion is that you have a major mechanical problem on your hands, and continuing to drive the car (when it decides to co-operate) puts you in danger of a catastrophic driveline failure.

The black panels you refer to are nothing more than a styling touch. The idea is to make the panels black so they look like they’re part of the rear window, therefore appearing to make the window wider and the whole car wider and lower. Does it work on a Captiva? Not really.

There could be a thousand reasons for this to occur, but there’s one common problem that affects the turbo-diesel version of the Captiva which can create this very symptom. The trunking that takes the compressed air from the turbocharger to the engine’s intake system can split or crack, leading to a leak. When this happens, the engine doesn’t receive the turbo-boost it needs to make power and you wind up with a very sluggish vehicle.

Accompanying symptoms can include a hissing noise under load and lots of black smoke from the exhaust. It’s definitely worth a check as it should be pretty easy for a mechanic to spot and is a simple, cheap fix before you go looking for more complex causes.

This sounds like a fairly simple case of the engine setting up a harmonic vibration through the car. It’s not an uncommon thing and diesels are worse than petrol engines purely because they vibrate more, particularly at idle. By revving the engine slightly, you’re changing the frequency of the engine’s vibrations and moving them out of synch with what’s called the 'natural frequency’ of the rest of the car.

Why does it manifest at the steering column? Because the column is a long, flexible (in a micro sense) shaft that is far more prone to picking up vibrations than a short, more solid part of the car. Why is it happening now all of a sudden? Probably because there’s some wear in the car somewhere. Your call to change the engine mounts was a good one as these can wear and cause this very problem. But, equally, the wear could be in the exhaust system or one of the points where it attaches to the car, a heat shield, the torque converter, or maybe even a piece of the car’s sheet metal that has come loose and is moving slightly.

The quickest fix is to bump the idle one or two hundred rpm and see if that moves the engine out of the vibration zone at idle.

Start with the basics: Is there enough oil in the engine? Check the actual dipstick rather than any on-dash gauge or indicator, as the dipstick never lies. If the level is low, replenish it and you should be okay provided you haven’t already damaged the engine by running it almost out of oil.

The other thing to do is check the owner’s handbook to see if the light in question suggests low oil level or low oil pressure. These are two very different things, but they will both cause catastrophic engine failure if ignored.

If there’s oil showing on the dipstick, you really need a mechanic to look at the vehicle to determine whether it’s a faulty sender unit (that is making the light think the oil level or oil pressure is low) or whether there’s something more mechanical at fault. Low oil pressure can be caused by worn engine bearings, a blocked oil pick-up tube in the sump or even oil that has been contaminated by fuel or moisture and is no longer doing the job of protecting the engine. Diesel engines, in particular, are capable of producing sludge that can block internal oil passages and stop the flow of oil to where it’s needed.

Doing your own oil changes is a great way to learn a bit about how cars work and develop a relationship with your car. You might even save a few dollars, too, but there are caveats.

The actual act of changing the oil is relatively simple and requires just a couple of hand tools. Basically, you drain the old oil out of the engine via the sump-plug, remove the old oil filter, replace it with a new one and then add fresh oil via the filler cap on top of the engine. If that sounds simple, that’s because that is a very crude, thumbnail sketch of the procedure, but it does cover the basics. Whether you feel confident enough to take the plunge is the next question. A workshop manual is a great investment and will be invaluable down the track.

But other things to consider include the fact that a service is often not just an oil change. There are many other things (transmission, brakes, cooling system etc) to be checked and adjusted at the same time as a scheduled oil change, so doing it all at home requires a reasonably broad idea of what’s going on mechanically. Your service handbook should spell out what tasks are specified for each service (each service is not all the same, either, some are more complex than what’s called a minor service) so that would be a good place to start.

Don’t forget, too, that the old oil and filter has to be disposed of in an environmentally responsible way, something that a professional workshop service takes care of for you. But there’s definitely satisfaction to be gained from this maintenance job and it’s absolutely the best place to start learning.

A check-engine light in a car like a Captiva can mean all sorts of things. Everything from a stretched timing chain (quite likely in this vehicle) to a dud oxygen sensor in the exhaust system (and about a million things in between) can cause the engine light to flicker on ominously.

The best advice is to have the car scanned electronically. That way, the scanning computer will 'talk’ to the car’s computer and the car should offer up any faults it has logged in the process of being driven.

You’re better off not driving the car until it can be scanned and fixed, as the problem causing the engine light to come on could easily get worse and may eventually damage other components. If it is something like a stretched timing chain that is causing the warning light, it could eventually break and reduce the whole engine to scrap.

Regardless of whether you use an additive, a car’s Diesel Particulate Filter (DPF) will still need to be cleaned (or regenerated) periodically as soot builds up in it. Short trips where the engine doesn’t get a chance to warm up properly, as well as extended periods of idling in traffic and stop-start running will all hasten this requirement.

In the case of the Captiva diesel, the best way to manually force a regeneration is to put aside an hour and go for a decent drive. The advice from Holden in the day was to travel at more than 50km/h and at more than 2000rpm (which may mean locking the car out of overdrive) for a minimum of 25 minutes. During this process, you should not allow the speed or revs to fall below those two figures which suggests finding a decent strip of freeway to carry out this process. You should also not turn off the engine at any point in this procedure.

The broad idea is to get the engine and exhaust hot enough for the filter to regenerate and clean itself. Experience suggests a couple of attempts may be needed to get this to happen as it should, and in fact, the car’s computer will give you several chances to produce the desired effect before the workshop beckons.

If, after 100km of this type of treatment, the DPF light on the dashboard hasn’t disappeared, the solution is a trip to a workshop to have the filter investigated and, potentially, hand-cleaned. Also, a mechanic can initiate a DPF regeneration via a scanning tool.

There’s a very real chance that in getting the headlight globe out and a new one in, you’ve somehow managed to bump the indicator light fitting and, perhaps, dislodged a wire or displaced an earthing point. The lights on the Captiva are housed in a cluster, so it can be a bit tight for space in there.

So give the indicator globe a wiggle and see if that restores things. If not, you need to look a bit deeper and start checking fuses. But if the rest of the indicators are working properly, it’s most likely that you’ve knocked a wire off or something similar. Either that or the indicator globe has chosen that exact moment to blow. It sounds unlikely, but it’s definitely possible.

This looks like a classic case of a body computer that is in the process of dying. Any time you see random lights coming on, or the stereo switching itself on, suspicions are always that the body computer as the culprit.

This computer controls literally hundreds of functions from the wipers, climate control, lights, entertainment system, even stuff like the rear window demister and central locking. And when the computer starts to fail many of these functions can go haywire, which is pretty much what you’re seeing.

The tail-lights staying on and the stereo witching itself on are what’s draining your battery, but the body computer is very likely the root cause and probably needs to be replaced. But before you do that, try this: Disconnect the battery overnight and then reconnect it next morning. Sometimes (but not always) this swill reset the body computer and might stop it playing tricks. The fix might be temporary, but it’s definitely worth a shot.