Introduction A rattling noise on cold start, a flashing warning light, or a sudden loss of power — these are the tell-tale signs that your engine may need urgent attention. For Range Rover and Land Rover owners across the region, timing chain replacement is one of the most common and most misunderstood repairs on the road today. RR Engine Works, based in Grays, Essex, has built a reputation as the go-to name for timing chain replacement Essex drivers can trust, offering precision diagnostics and lasting repairs for every JLR model on the road.