Are you having problems with your 2003 Holden Commodore? Let our team of motoring experts keep you up to date with all of the latest 2003 Holden Commodore issues & faults. We have gathered all of the most frequently asked questions and problems relating to the 2003 Holden Commodore in one spot to help you decide if it's a smart buy.
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It's a question of how much oil is being burnt. Too much will foul the converter and inhibit its ability to turn harmful emissions from the engine into largely harmless gases emitted into the atmosphere. Excessive oil in the exhaust gases will affect the converter, but Holden assures us those engines that do show high oil consumption -- and Holden says these are few and far between -- don't consume enough to be a problem in terms of converter operation.
The change took place with the VX in 2000. The increase in power is predominantly due to a more powerful electronic control module that could process more data more quickly, and a new smoother intake manifold that improved the V6's gas flow and volumetric efficiency.
The supercharged version of the ECOTEC V6 is an option in the Commodore S and produces 171kW compared with 147kW produced by the normally aspirated V6, which is the standard engine. One thing you might want to consider is that the supercharged engine is only available with the four-speed auto transmission where there is a choice of manual or auto with the standard V6. The auto tends to dull the driving experience of the supercharged V6, but it is still a lively engine and fun to drive. The VT Series II saw the introduction of the 5.7-litre Gen III Chev V8 which is a relatively high-revving V8 compared with the old Holden V8 it replaced, but it is also a fun engine to drive and comes with a choice of auto or six-speed manual. There is no significant difference in servicing or parts costs with either the S or the SS, but we are aware that some Gen III V8s have had problems with piston rattle and high oil consumption and you should carefully check for any sign of these problems with any car you are considering buying.
Early Commodores with independent rear suspension suffered from high tyre wear because of geometry changes they went through as they worked. Anything that made the rear lower, such as putting the weight of a trailer on it, made it worse. So the advice you received was correct and you would have to replace tyres more often on a Commodore built before the VX Series II. The VX Series II saw the independent rear suspension improved with additional links to particularly control the changes in toe-in as the wheels moved up and down. This meant Holden could change the suspension settings which reaped benefits in tyre wear, as well as worthwhile improvement in ride, handling and stability. If you are looking to buy, then I would recommend the VX Series II, but if you have a car you want to improve, then take it to a suspension specialist who will be able to suggest ways to solve the problem.
Thanks Matt. I'm sure Virginia will be keen to check it out.
You really need to have it checked by a mechanic. It could be oil being sucked into the engine past the valve stem seals and burnt, or it could be running very rich. If it is the latter it could be because of a malfunctioning oxygen sensors in the exhaust or the engine temperature sensor, telling the computer the engine is running lean or it's not up to working temperature, and forcing the computer to pour more fuel in.