Holden Commodore 2004 Problems

Are you having problems with your 2004 Holden Commodore? Let our team of motoring experts keep you up to date with all of the latest 2004 Holden Commodore issues & faults. We have gathered all of the most frequently asked questions and problems relating to the 2004 Holden Commodore in one spot to help you decide if it's a smart buy.

Used Holden Commodore review: 2004-2006
By Graham Smith · 24 Jun 2009
It might be struggling right now, but the Commodore has been one of the top selling cars ever since it was adopted from Europe back in the 1970s.Smaller, more fuel efficient cars are the current flavour of the month, but enough Australian families still regard the Commodore as their ideal car.It’s got the size the average family wants, it’s got the handling and performance they like, it’s comfortable, and has the capacity to tow their boat or caravan.Its popularity can be measured in the ongoing success of the latest Commodore, the VE that has just won Wheels magazine’s accolade as the Car of the Year for 2006.While the VE is doing some pretty decent business the outgoing VZ has quietly entered the realm of the used car.At just two years old it is now the choice of those who can’t afford a new model, or aren’t prepared to pay that first slug of depreciation new car buyers have to endure.There are plenty coming on the market as fleets upgrade to the VE, which makes them a pretty tempting buy. To use a sporting cliché it’s in the buying zone.MODEL WATCH The VZ was the last in the line of Commodores that started with the VT in 1997. Almost 10 years old it was starting to look a little dated, despite being refreshed at regular intervals along the way.Still heavily based on the VT, which was a well designed car with clean flowing lines and perfect proportions, there was only a handful of minor cosmetic changes that distinguished the VZ from its predecessor.The major changes occurred under the skin in the form of a new V6 engine, new transmissions, new safety features, and a new sports model.After 16 years Holden decided it was time for an under-bonnet change and replaced the faithful old Buick-based 3.8-litre V6 for an all-new, all-singing, all-dancing, all-alloy V6 in the form of the locally manufactured Alloytec engine.The old 3.8-litre V6, with its cast iron block and overhead valves was regarded as old technology, but it had proved itself to be a pretty tough old nail over the years and produced a decent amount of torque with quite reasonable fuel consumption. The new 60-degree 3.6-litre Alloytec engine had plenty to live up to.There were two versions offered, the Alloytec and the Alloytec 190. Both boasted double overhead camshafts with four valves per cylinder, but the 190 also featured variable valve timing on both the inlet and exhaust cams.The entry Alloytec engine produced 175 kW at 6000 revs and 320 Nm at 2800 revs, a substantial improvement over the 152 kW and 305 Nm the old ECOTEC engine delivered.While the Alloytec engine was livelier on the road if you were prepared to rev it the difference wasn’t that great if you appreciated the easy driving nature of the old engine.For more zip Holden also offered the Alloytec 190 in some models, which delivered 190 kW at 6500 revs and 340 Nm at 3200 revs.While both engines delivered more performance Holden also claimed they returned improved fuel consumption. On average, Holden said, they were two per cent better than the outgoing engine.Along with the new engines Holden also introduced new automatic and manual transmissions.The Alloytec 190 was linked to an all-new five-speed automatic transmission with paddle shifting on the steering wheel; the regular Alloytec was bolted to an upgraded four-speed auto and didn't have the paddle-shifting feature.There was also a new six-speed manual gearbox, which could be linked to the Alloytec 190.While most of the attention was focussed on the new V6 the 5.7-litre Gen III V8 was also upgraded. It now put out 250 kW at 5600 revs and 470 Nm at 4800 revs.The Commodore’s safety arsenal was also boosted by the addition of Electronic Stability Program, ESP, which was standard on Acclaim and Calais.It was part of a larger package of safety systems that included ABS anti-skid braking, Corner Brake Control, Electronic Brake Assist, Electronic Brake Force Distribution, and traction control.The VZ range began with the Executive fleet model, and included the Acclaim and Calais, while there was now a sports model, the SV6, in addition to the V8-powered SS. Holden continued to offer two body styles, the sedan and wagon.IN THE SHOP It’s early days yet for the VZ, particularly for the new Alloytec V6 and auto transmission, but there are few reports of reliability issues.Owners question the performance of the engine when compared to their old ECOTEC V6s. That can probably be explained by the different nature of the new engine, which does need to be pressed to extract its performance. Even though the old engine developed less power it developed almost as much torque which made it a nice smooth driving engine. Owners who bought the VZ expected much more from the engine than it delivered.There are also reports of harsher shifting of the new transmission, but to date there haven’t been reports of problems with it.When buying make the usual checks for body damage, paint mismatching, scarred alloy wheels etc.Also look for oil leaks around the engine, transmission and power steering.IN A CRASH Dual airbags with the option of side airbags among a raft of safety features make the VZ quite a safe choice.The addition of electronic stability control adds significantly to the VZ’s primary safety.OWNERS SAY Mick Warne traded a 1995 Rodeo on his VZ Executive in 2006. He rates the driving position and visibility good, and says the Alloytec V6 and automatic transmission combination is a good mix for his use, which includes plenty of towing. He’s averaging around 9.0 L/100 km on trips and 11 around town, and also says the road holding is exceptional.Andy Webb and his wife updated to a VZ Commodore in 2005. While he says he likes the VZ, he’s disappointed with the performance of the Alloytec V6 compared to the ECOTEC in the VX they also own. Despite the increase in power Holden claims for the Alloytec he can’t measure any difference from his VX. He also thinks the VZ is slightly thirstier, so the only advantage he can see between the two motors is that the VZ only has to be serviced every 15,000 km compared to the VX at every 10,000 km. Overall, he says he hasn’t enjoyed the VZ as much as the VX.Up until 2001 David Rochford was a Falcon man, but had become disillusioned with his 1988 Falcon and chose a VX Commodore Equipe when he went to work for a new employer. He was more than happy with the choice, so much so that he bought the car for his wife when it came time to replace it. It was replaced with a VZ Acclaim, which he says has been a great disappointment. He says it’s noisier, the transmission shifts are harsher and the trim fabric isn’t as pleasant. His complaints to three Holden dealers fell on deaf ears. When he next has the change cars he says it won’t be to a new Commodore.LOOK FOR • Clean, elegant style• Room for the family• Plenty of safety features• Less refined that previous models• Reasonable fuel consumption• Less driver friendly than earlier modelsTHE BOTTOM LINE Good all round package for the family who goes and tows together, but less refined than its predecessor.RATING 70/100
Read the article
Holden Commodore 2004: Stalling
Answered by Graham Smith · 19 Apr 2011

There would still seem to be a problem with the crank angle sensor. The symptoms suggest it, and the diagnostics back it up. Having replaced the sensor without solving the problem you need to look at things like the connector and the wiring that leads to the sensor.

PBR slotted discs and pads fitted to Commodore
Answered by Carsguide.com.au · 06 May 2010

Consulting a brake specialist, like Howard Reynolds at Race Brakes, is always worth doing. Car makers fit components to meet certain performance criteria, like stopping distance, fade resistance, and longevity, and it's possible to improve on some aspects by going to other, or better discs and pads.

Ask Smithy Xtra module fail
Answered by Graham Smith · 30 Mar 2010

In the past carmakers have generally held parts for cars up to 10 years old, but that could be changing with the impact of things like the global financial crisis and the high cost of maintaining the inventory. The short answer is that you shouldn’t have to wait for such a part, and you certainly shouldn’t have to wait for what looks like being 16 weeks. That’s simply unacceptable. Go back to Holden Customer Support and demand their action, you could also seek out an air-conditioning specialist who might be able to fix your car faster and more cheaply.

Holden Commodore 2004: Stalling when cornering
Answered by Graham Smith · 03 Feb 2011

I would suggest it's a problem with the mixture, and I guess it's too lean. Check the oxygen sensors, if they are ok check the system itself.

When Rust Must Go
Answered by Graham Smith · 28 Aug 2009

ASK them to show you where it's rusting. If it's just the coolant that is a rusty colour, have them change the coolant and make sure you regularly change it at least once a year. If the rust is causing a leak, have it repaired.

Plugs Dilemna
Answered by Graham Smith · 09 Oct 2009

YOUR first point is valid: always check that the work claimed to have been done actually has been done and getting the old parts is a good way of doing that. At the same time you can check the condition of the parts removed and assure yourself that the work was justified. It can also be a good idea to see what should be done in a service before you take the car in. That way you'll know if something unnecessary has been done or something has been missed when you pick the car up, and there's no better time to sort out problems than before you drive away.

Ask Smithy Xtra Trouble starting my VT Berlina
Answered by Graham Smith · 06 Jul 2010

It’s probably the battery. The cold snap we’ve had in recent weeks has been a tough test for batteries, and your battery was probably down a little. That it starts without a problem when warm is further evidence that it’s the battery. Your experience is one we should all take note of, and make a mental note to check the batteries in our cars each year before winter sets in, but we tend to forget about it until we have a problem starting our cars.

Commodore ageing gracefully?
Answered by Graham Smith · 18 Mar 2010

It's impossible to predict what might happen in the future, but I would tend to agree with you. I don't see any reason to sell it; it's only six years old and providing you keep it well maintained there's no reason to think it won't continue to give you good service for some years to come.

Ask Smithy Xtra Replacing tyres on Commodore
Answered by Graham Smith · 30 Nov 2010

If your Commodore has IRS you’ve got a tyre-eater on your hands and it would be worth talking to a suspension specialist about fitting a kit to the rear suspension to control the toe-in. Tyre specialists also recommend that you regularly rotate your tyres — 10,000 km is the interval they suggest — and have the alignment checked and reset every 20,000 km. Alignment is often neglected, but is an important contributor to tyre life and can be knocked out simply by hitting a kerb or a pothole. After doing that you could fit a Pirelli or a Michelin tyre, which should give you better tyre life.

Disclaimer: You acknowledge and agree that all answers are provided as a general guide only and should not be relied upon as bespoke advice. Carsguide is not liable for the accuracy of any information provided in the answers.
Have a new question for the CarsGuide team?
More than 9,000 questions asked and answered.
Complete guide to Holden Commodore 2004
Complete guide to Holden Commodore 2004 CarsGuide Logo
Reviews, price, specs and more