Cold start rattle, fresh VTC actuator spring
Hey guys, hoping someone may have some insight on this one. I used to get a cold start rattle in the winter, and that was my VTC actuator going bad, replaced the spring and the noise never came back.
Fast forward about 6 months, just starting yesterday or the day before, I’m getting a slight/moderate rattle sound similar to the VTC actuator, and it goes away after like 2 seconds. Ambient temperature is about 26° so it’s not because of cold.
I’m just over 100k miles, but I know the timing chains are supposed to be lifetime, however I have over-revved the car one time about a month or two ago, so I’m curious if this situation is that money shift materializing.
I have a new OEM TCT in my garage I may try to install when I’m home. Also I noticed on idle it sounds like I have quite a few backfires or misfires, an irregular idle. Does this point in any direction?
TIA everyone, I’ll try to get a video tomorrow morning.