Just wondering if anyone has had this problem or heard of it happening to others before. Long story short… the MIL light started coming on intermittently when starting the engine and driving. Over time it stayed on constantly which forced me to book it in at Holden. Annoyingly the warranty just expired over a month ago also! The car is now currently at Ralph Da Silva in Preston to have the trouble codes examined. They found that the timing chain sensor was detecting an over stretched chain. The dealership to their credit contacted head office and asked them to foot the bill for its replacement which I am told is about $2000 bucks so. Luckily they agreed to this so early January its going back in for replacement. Has anyone encountered or heard of this sort of problem on the Alloytec engine? It is true I do give it a hard time every once and a while but nothing that bad it would cause the timing chain to stretch. Genuinely interested in your opinions and any ideas how it happend… cause I am buggered if I know. BTW... I drive a 2006 VE Calais (Alloytec V6 195kw) with 87,000km on the clock.