Jkunzy1690

hey guys, i have an 06 ss sc with 30k and it seems to sometimes, not all the time, have a slight engine knock sound at idle, it only does it every once in a while. I just got my oil changed and i am using a semi synthetic very expensive 7000 mile oil. i was wondering if it could be the oil. also i always run 93 octane. i was wondering if any other part would make such a noise but it seems to come from under the hood. thanks alot

Red2.4SS

valve train? timing chain?

umrdyldo

iTrader: (1)

unless you are monitoring the car with HPtuners or something its hard to say if it's "knock"

These engines are pretty loud too. so it could be normal.

Dealer?

Jkunzy1690

i bought my car used, how does the warranty work? can i just take it to any chevy dealer?

umrdyldo

iTrader: (1)

as long as it's still under 100k your drivetrain warranty should be in tact unless the previous got it revoked.

Jkunzy1690

no, its existing warranty. But i dont know what dealership the car was purchased at. does that matter? i have never dealt with dealerships or warranties before. what do I do?

rukkee

iTrader: (3)

just set up an appointment with your local chevy dealer's service department . The 06's have a 6 year 60000 mile powertrain warranty. 07 and newer have a 5year 100.000 powertrain warranty.

eurochevy

just cause its a very expensive oil doesn't mean its any good....put in a FULL synthetic like it states on the oil cap (mobile 1 5w-30 or equivelant)....try that..and if your useing 93 octane i doubt its actually knocking...take it in to dealership? you should have warranty left i believe?

lsjwannabe

iTrader: (1)

could be solid tranny/ motor mounts causing false knock

trent_ky

my supercharger makes a rattling sound that is supposedly normal maybe thats what it is