VZ Alloytec manufacturer faults handy hints
As some of you may be aware the Alloytec 3.6 either the 175 or 190 version have their fair share of problems once you've put a few k's on it. Here are some well know faults that could save you money in the long run and a few handy hints.
The timing chain has a tendency to fail around the 140000k mark. This is a very costly replace and not something i would recommend to your DYI mechanic. Now holden dealers will charge an arm and a leg for this if you vehicle is not under warranty. Easiest way around this start saving some money. I have heard some rumours and they are just rumours that the americans have bought out an aftermarket timing chain for the alloytec which is stronger and more durable. But in the end the timing chain can be a problem so save up some money and take it to a trusted mechanic so you don't get ripped off.
Secondly the ABS unit like to fry itself around the same point in time the timing chain goes. It is a pretty straight forward removal and replace but again something not for your DYI mechanic. The ABS unit is a costly item, up to $1000, but if you look around you can get them cheaper. Or if you really wan't you can drive around without it but the beeping from your cluster makes you want to put your fist through it eventually.
That is all i have and i hope this helps those who reads this
Cheers,
Matt
2 speed powerglide...fast and faster
nice write up, but my dads wl statesman hasnt had any of those problems cars done 380k maybe its just a matter of luck lol
go in Luxury
I was gonna say my ex police Alloytecs done almost 180 000 without these issues
My dads has done 140 000 same
My mums has done 120 000 same
Ive got a few mates who have done 100 000 + and, umm, same
the only common issues are the water pump leak (bearing shats itself and it spews coolant eveywhere). The Thermostats tend to go, although none of us have had this issue it is a common issue reported on this and other forums, individual ignition coils also go causing a misfire.
The timing chains do rattle on statup until oil pressure builds. Ive only heard of one guy having an actual timing chain issue despite everyone claiming they will shat themselves in a big way.
The ABS issue isnt one Ive heard of, even so you cant legally drive around with the beeping as the vehicle is actually defective, thats why its annoying, designed to make you have it looked at.
Hope this helps
166,500kms+ and still going strong, no issues here.
Need a part number? PM me.
Luke.
<--- Want a ride?
158,xxx km and nothing to be concerned about. Very pleased with the car. Only had to replace the water pump, as Torquative said.
The only Exec in Saudi that's now properly badged!
Just some p-plater
230,000 k's and have had water pump and oxy sensors, as do most.
no problems with timing chain (other than it being a little noisy at start up). or ABS?
Originally Posted by QuickVRII95
As far as im aware, the diffs in the VZ one tonners had to be either fixed or replaced not too long after running off the production line. Mine did, so did 3 other one tonner owners i know. My ignition barrel shat itself (common fault) at 163 000 , and my oil pressure sensor died (also a common fault) at 168 000... but otherwise sweet as.
125 chain has been shot for about 15000 kays water pump went at 95.
236*** nothing. Just the oil pressure sender.
No chain pump or as you suggested ' abs unit '.
some of you guys are saying the timing chain makes a rattle on cold start... could some of you please describe what it sounds like... i have a vz sv6 on 85,000 k's and first start of the day it makes a rattle / metal tingy sound for about 2 - 4 seconds and then goes away... if you turn the car of straight away and start it again you do not here the sound... its only on first start of the day!!
]
i have the same problem goes away after about 2 seconds for me
Cold start on an alloy engine, lean mixture to comply with emissions (high rpm) = rattle, a lot of modern (alloy) engines suffer from cold start rattle...
Just about to replace a water pump at 70k myself! At least they are reasonably priced...
Also with the timing chain until oil pressure builds up (which isn't that long) it will make a 'rattling' sound. I know my calais does it and it is nothing to worry about. I have a question that i have mean meaning to ask for those who own alloytec's. When first started up does your idle sit above 1000 RPM? For me personally it seems a bit excessive for a quick warm up. And i get insane amounts of vehicle creep during idle. Any thoughts?
2 speed powerglide...fast and faster
yes mine sits at 1100 for about 10 seconds then drops to 900 then goes down to about 600-700
Big block Alloytec
Makes no sense whatsoever!
another problem they have if not serviced properly is a sludge build up which WILL result in engine failure, it has just happened to my car, came with full service history but after pulling the rocker covers off i beg to differ....
Click to Enlarge
Big block Alloytec
Blaaah. Good luck with that.
Makes you feel like getting the Gerni out.
its absolutely farkedddd, i bought the car with a full service history, since ive had the car ive serviced it every 7k and then i found thatatleast i found my big end bearings in my filter
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