Metal Welds from exhuast have possibly gone into the engine and caused damge.

[Banicks]

In my experience, Holden will try and use any excuse to get out of a warranty. This kind of issue sounds difficult to pinpoint exactly, so Holden will definitely blame the exhaust.

Perhaps you can look at a warranty with the exhaust manufacturer, but I'm betting they will only cover their workmanship (ie. the pipes haven't corroded or come apart). Getting them to cover the outcome of their workmanship will be difficult to prove also - unless Holden pull out a cylinder with welding excess melting or stuck into the head - then you could show the exhaust company for faulty workmanship and seek compensation for damages as a result of this.

Getting legal here, not envious of your position.

 

[Not_An_Abba_Fan]

For them not to cover it, they have to prove it came from doing the exhaust.

Get the foreign objects looked at by someone independent. See what their opinion is.

 

[wez84]

As not an abba fan just said get the objects tested to see what they are and if the match the material of your exhaust

 

[rusty411]

sparkplugs 30 bucks
service 370
steering wheel 500
holden engineers ...priceless haha

 

[The X Man]

I too would be surprised if a piece of weld has gone back up and into the combustion chamber from the exhaust, in fact i would of thought that it's near impossible. I wonder if some sections of the intake were removed for access and a metal fragment enter the intake through this??

 

[soop]

Love to hear their logic. Stick your hand over the exhaust pipe while its running and see what happens. No way two little bits welding flash are going to get back into the motor.

 

[WogBoyz]

Wow i hope this doesnt happen to me, getting my pacemaker headers fitted next month and mafless tuned, i though the headers just bolted straight to the head with no welding required? or do you mean welds on the headers have come apart?

sorry for my lack of knowledge lol

 

[FstStig]

The bits of metal would of had to be sitting on top of the Exhaust valve to have fallen in, even then the amount of pressure coming out of the exhaust valve would be so great it would just be pushing it back towards your cat. I think Holden are talking out of their ass and probably couldn't be stuffed to really find out the causes of it, so they took the easier route and blamed the exhaust. Should of gotten the stock exhaust put back on before it went in. Would of cost you less then $3000 lol.

 

[soop]

Of course they're talking out their arse.
How the hell can anything from the exhaust pipe go INTO the motor???

Think about it.

 

[heyitsEnricoPallazzo]

Three weeks for peices of metal to migrate from the exhaust to the combustion chamber? Highly unlikely.
You would think if the exhaust was at fault the problem would of manifested itself almost immediatly.