possible timing chain issue.
Hey new to this forum.
Ive recently been having stalling issues with my 2011 d40 thai build auto.
Ive replaced scv,crank sensor, gave her a major service using genuine filters including fuel filter. After a week with no car i head down to mechanics as the say the crank angle sensor fixed the problem but upon arrival im greeted with bad news as the car is doing the same thing as it was when i dropped it off. I replaced the timing chain 5000klm ago using this kit but Mechanic who fitted it seems to think the cam shaft chain has stretched already causing the car to stall. Im about to loose my mind as i cant seemed to find a legitimate diagnoses and the mechanics bill is just racking up. Has anyone had this problem or could point to a possible solution as im out kf ideas cheers.