Originally Posted by Wry 'Cuda
Is the following item relevant?
Kia has issued a Technical Service Bulletin to its dealership network detailing the steps necessary to inspect and potentially replace engines on a number of its 2013 Rio subcompacts.
At fault is a defective timing chain and guide, which could create a clattering sound as it essentially chews up the inside of an engine. Instead of repairing the faulty timing chains and guides, a TSB released last month indicates that Kia wants its dealers to entirely replace the engine sub assembly and long block.
My vehicle isn't a 2013 MY, so I don't know if it applies to my situation, however:
EDIT: The tensioner replacement apparently solved the problem, hopefully this situation is over. I'll report back after I pick up the car if I'm able to reproduce the noise.
Post Pickup Edit: The tensioner replacement appears to have solved the problem, I've not been able to replicate the noise under the same conditions as before, and the car is not longer surging when under load. Hopefully my problem is solved.
A new problem has appeared recently, there is a rattling sound coming from the driver's side air vent that is effected by the speed of the AC system. Probably not worth bringing up.
Final edit: To the previous poster, the tensioner is metal, not plastic.