timing chain tensioner failure

Quick Answer: Timing chain problems typically manifest as metallic rattling noises during cold starts, rough idling, or illuminated check engine lights with codes like P0016/P0017. Replacement requires 10-14 hours for DIYers and costs $1,200-$2,500 professionally. Critical failure points include tensioner wear and guide rail fractures. The 3 A.M. Breakdown That Changed Everything Rain lashed against the … Read more