Are you having problems with your 2007 Holden Commodore? Let our team of motoring experts keep you up to date with all of the latest 2007 Holden Commodore issues & faults. We have gathered all of the most frequently asked questions and problems relating to the 2007 Holden Commodore in one spot to help you decide if it's a smart buy.
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HOLDEN uses a dual-fuel gas-injection system developed by Impco. I am a fan of gas-injection systems because they are less prone to the driving problems that can plague the older venturi-mixer systems and make them a nightmare to drive. The dual-fuel Holden hasn't been a big seller mainly because fleets prefer the dedicated LPG Falcon. The dedicated LPG system means drivers can't switch over to petrol to get better performance and driving capability. But if you are a private owner, I would choose Holden's gas-injection system.
THE VYII had the old Buick-derived 3.8-litre ECOTEC overhead-valve V6, which dated back to the VN Commodore. It was a pretty tough old nail, with good torque characteristics and good fuel economy. The VZ has the new 3.6-litre quad-cam Alloytec V6, which has more power and torque than the ECOTEC engine, but I don't think its torque characteristics are as good. It's also a little thirstier than the older engine. I don't see a lot between the resale values of the two, but being newer the VZ will command a higher used price for the foreseeable future.
I ASSUME you are getting your fuel consumption readings from your trip computer and not by a fill-to-fill check. If that's the case I would suggest you do a fill-to-fill check to make sure the computer readings are correct. The combined fuel consumption figure for the Gen III V8 is 13.0 litres/100km so I suspect your ute is not too far off the mark. I'm currently driving a V8 VE ute and I'm getting 17 litres/100km according to the trip computer.
I AGREE the design is poor and, like you, I have caught my hand under the lever. The only reason I can think of for Holden going away from the tried and true design they and most other carmakers have used is some misguided view that it's a better, more appealing design. I find it very awkward, and I can only hope they change it at the next facelift.
ANY modification you make affects the warranty and anyone who tells you differently is giving poor advice. You might have good cause for complaint against Holden if you had got the dealer to put it in writing that your warranty wouldn't be affected, but as you didn't I can't see how you could complain about Holden not honouring the warranty.
GOOD luck. I hope Holden is as good as its word and that your problem is addressed and you're reimbursed for the money you spent on repairs.
I'D LOOK for a leaking windscreen. Certainly that could explain the water in the front footwell, but it could also result in water in the rear.