I'm having a problem with engine rattle on cold or semi-cold startup. The rattle lasts anywhere from 1 to 3 seconds. Car was at dealership for a week and they replace all 4 CVVT hubs, both timing chain tensioners and the 2 chain guides. It's better but still sounds like metal on metal for the first second. Anyone else working on or has had this problem?
ive been saying this for years now... GDI pumps have a nasty rattle when cold because they aren't primed when started... this is why the rattle goes away. It's annoying as crap but once the pumps are primed, they are quiet.
Update - When this problem first started, it was only on cold engine (4+ hours sitting). After the dealer working on the car, it is happening with only an hour or so of sitting. Waiting to hear from Kia on what's next.
My 2014 has had the rattle at start up when cold….Kia says its "normal"..Sounds absolutely terrible…Now it does it after sitting for only 30 minutes..and it lasts twice as long as when it started. Mine doesn't sound internal though…We are taking it back in again soon (3rd time)..If they don't find something loose and its internal then this sucker will be getting turned in when the lease is up and I will get another brand..We love the car otherwise but the sound is so bad..No new vehicle should make this noise let alone one promoted as a luxury vehicle..If my 66 VW made this noise I would be panicking…It is not normal…and if they want to say it is then lets all record our "normal" engine rattle sounds and youtube those suckers..future potential buyers need to understand that the nice quiet Cadenza they are test driving will be short lived..I hate the "Oh my gosh" stares when I fire my luxury car up..not the kind of attention I want..sure makes a guy feel like he bought the wrong car.
I had 2 cadenza's got rid of one partly because of the rattle at startup, Then started to run really rough at startup for about 15 to 20 seconds. wife hated it. Purchase a K900, for her I think, with V8 it is direct injection and don't hear any of that rattle. Saw a Canadian K900 with the V6 3.8 and that didn't have a rattle either.
Yes like beeswax says it is normal for this car
Yep; me too. I didn't notice much at first but now notice it after it sits for at least 4 hours or more.
I don't think you can compare the same situation with the 3.8 or V8 as those engines are not transverse mounted FWD (like 3.3) and are very different engines from the 3.3 V6 in Cadenza, Sorrento, Sedona, and Hyundai Santa Fe and Azera.
The 3.3 is so widely used and has such a good reliability reputation that I'm not worried about it. My BMW 740i did something very similar and I kept it to 125k miles with no issues (on the engine that is).