Jesse_Boyer
Veteran Member
My wife's '13 Passat experiences a knocking/pinging/nailing noise when the engine is cold. It gets worse with more throttle. If the engine is warm, there is no noise. It's very much like the noise in this video:
https://www.youtube.com/watch?v=tRGn9DZ3ZkI
It started out mild a short while ago and has steadily gotten worse. I don't drive it often, so I didn't know it was getting worse. The engine actually felt like it was stumbling/missing when I drove it yesterday.
I experienced none of this after the car had warmed up, only when it's a cold engine.
Does anyone know how to identify which injector is causing this? Also, is swapping an injector in the CKRA engine as simple as it was in the ALH engines? Would I have to do any adjusting/calibration via VCDS if I swap an injector? (I'm pretty well versed and mechanically inclined, just not able to find much on the new engine.)
I've also heard some discussion it might have to do with a throttle valve of some sort, but I'm not extremely proficient with this engine.
Any help is greatly appreciated.
Noise from this thread:
http://forums.tdiclub.com/showthread.php?t=436724&highlight=cold+injector+knock
and from this thread:
http://forums.tdiclub.com/showthread.php?t=472394&highlight=cold+injector+noise
https://www.youtube.com/watch?v=tRGn9DZ3ZkI
It started out mild a short while ago and has steadily gotten worse. I don't drive it often, so I didn't know it was getting worse. The engine actually felt like it was stumbling/missing when I drove it yesterday.
I experienced none of this after the car had warmed up, only when it's a cold engine.
Does anyone know how to identify which injector is causing this? Also, is swapping an injector in the CKRA engine as simple as it was in the ALH engines? Would I have to do any adjusting/calibration via VCDS if I swap an injector? (I'm pretty well versed and mechanically inclined, just not able to find much on the new engine.)
I've also heard some discussion it might have to do with a throttle valve of some sort, but I'm not extremely proficient with this engine.
Any help is greatly appreciated.
Noise from this thread:
http://forums.tdiclub.com/showthread.php?t=436724&highlight=cold+injector+knock
and from this thread:
http://forums.tdiclub.com/showthread.php?t=472394&highlight=cold+injector+noise