I posted before that I had recently purchased a 2.2 Sri Astra quite cheaply knowing that there was a problem with it (basically sounding like a diesel)
Gave it an engine flush and changed the oil and everything was fine for a month or so but still sounding like a diesel.
Then on Saturday I had a knocking noise coming from the front and loss power going down dual carriageway. Putting foot down and couldn't do beyond 60mph
Took it to my local main dealers and mechanic looked over it for 10 minutes and said that the tensioners had gone causing the cam chain to slip and cause the knocking because the timing is out.
Does anyone reckon this sounds like the ongoing problem with some engines that the oil nozzle should of been replaced? I keep hearing stories on many Vauxhall forums that 'field remedy 1532' is what you need to quote and people have had the job paid for by Vauxhall.