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Old 02-11-2008   #1
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What really is GM on the Croma????

As the Title says:

As far as I know only the front and rear suspension, exhuast system, front and rear wheel hubs inc bearings, all from a Vectra C.
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Old 02-11-2008   #2
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Re: What really is GM on the Croma????

I believe the floor pan is common to the Vectra C, Signum, 159 and a SAAB. Also the brakes have no common parts with other fiat makes, likely interchangable with Vectra?
Exhaust system could depend on the engine type, GM use the JTDm.
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Old 04-11-2008   #3
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Re: What really is GM on the Croma????

Sorry chaps, the 159 has the 'premium' platform as opposed to the 'Epsilon' one fitted to the others (look at the front suspension and you'll see what I mean). The 'premium floorpan is also the base for the new Vauxhall Insignia BTW. The later Saab 9-3s do indeed use the 'Epsilon', however the closest car(s) to the Croma is the Signum/Vectra C estate (due to the axle weights). Some fluid reservoirs are also GM marked, I wouldn't bet against many of the electrical components being common either. The petrol Cromas use a GM engine, but the Multijets are Fiat. Haven't found any other bits yet but am willing to look if anyone's that curious?

HTH.
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Old 06-11-2008   #4
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Re: What really is GM on the Croma????

From what I have seen on my Croma: floor pan, wheels, hubs, brakes, suspension, electro hydraulic power steering and gearbox. Front drive shafts may also be GM.

Exhuast/DPF/CAT I'm not sure about, but as the late Vauhalls use the Fiat diesel engine then I would guess the exhaust/DPF/CAT are common.

At least the heart(engine) and styling are Fiat/Italian.

Nick /////
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Old 07-11-2008   #5
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Re: What really is GM on the Croma????

Agree with you Nick.

My exhaust on mine is GM, the rear silencer had a embossing of GM/Opel on it. I cross referenced the part number on it, and found that Kwik Fit will charge you 165.00 if you ask for a Croma Rear Silencer, if you ask for Vectra C from 2004 rear silencer which will fit a Vauxhall Vectra 1.9CDTi / Croma 1.9 MJet, it will cost you 89.00 fitted.

The turbocharger on the MjET is also GM.
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Old 07-11-2008   #6
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Re: What really is GM on the Croma????

genetically modified Fiat
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Old 07-11-2008   #7
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Re: What really is GM on the Croma????

That is really worth knowing. Near on 50% cheaper is not to be sneared at, even if you end up with a Genetically Modified (thanks Dave) stamp.

Nick /////
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Old 10-11-2008   #8
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Cool Re: What really is GM on the Croma????

Quote Originally Posted by DoIDon'tI View Post
Sorry chaps, the 159 has the 'premium' platform as opposed to the 'Epsilon' one fitted to the others (look at the front suspension and you'll see what I mean). The 'premium floorpan is also the base for the new Vauxhall Insignia BTW. The later Saab 9-3s do indeed use the 'Epsilon', however the closest car(s) to the Croma is the Signum/Vectra C estate (due to the axle weights). Some fluid reservoirs are also GM marked, I wouldn't bet against many of the electrical components being common either. The petrol Cromas use a GM engine, but the Multijets are Fiat. Haven't found any other bits yet but am willing to look if anyone's that curious?

HTH.
I'm new to the forum having recently bought a Croma 1.9 Multijet, It has an annoying knocking sound from the rear suspension, almost as if the exhaust is hitting the under side over bumps....this is definately not the case. I'm therefore thinking of renewing the rear shocks' as the next step. The threads I've just read suggest I might save 's if I purchase the GM (vectra c) ones are these the same does anybody know? Or can anybody give me any pointers as to what the problem might be?
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Old 11-11-2008   #9
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Re: What really is GM on the Croma????

Probably worth checking the drop links on the end of the anti roll bar. Also search here for bilstein B4, which have been recommended.
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Old 11-11-2008   #10
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Re: What really is GM on the Croma????

I have the same problem and as above the drop links will be first thing i'll change, well...hellcat will have to change . Going over speed bumps every day to work sure will not have help my car.
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Old 11-11-2008   #11
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Re: What really is GM on the Croma????

Best get your cheap GM parts while you can, sounds like GM is going to fall over soon...
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Old 12-11-2008   #12
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Re: What really is GM on the Croma????

Quote Originally Posted by DoIDon'tI View Post
Best get your cheap GM parts while you can, sounds like GM is going to fall over soon...
Old news should visit leisure lounge more often
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Old 15-11-2008   #13
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Re: What really is GM on the Croma????

Further to my suspension knock, I have now suffered an anlternator failure, not good when the power steering goes at 75mph! I took the car to my trusted local garage who struggled to find a supplier except for the local FIAT dealership who said it would be at least 3 days delivery. I did my own extensive search and after many phonecalls managed to find somebody who could guarantee next day delivery and guess what? its a GM part No and is used on the Vectra C 1.9 CDTi. My local garage has also found the source of the suspension knock....upper rose 'type' bushes. Apparently they have changed loads of these on...yes you've guessed it Vectra C's. So I have spent the last week enduring the jibes about my Fix It Again Tomorrow only to find the problems I had thus far relate to GM parts!!
However I will not be able to tolerate many more failures as my car is essential to my job and I do high mileages the Croma is on 80k now and this will be increasing at a rate of 2.5k per month minimum, so it is very much still on trial!
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Old 15-11-2008   #14
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Re: What really is GM on the Croma????

So is the croma a taste of Vauxhall ownership then? Suspension problems galore!
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Old 18-11-2008   #15
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Re: What really is GM on the Croma????

My Alternator failed at 60k. Can you post the spare part numbers on this thread that you will purchase grom GM??
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