08 impala lt 3.5 engine knocking noise
 

I have replaced the cam and the crank shaft sensors in my car and I got rid of the p0011, and p0016 engine codes. but now a new problem has come up... their is a real bad knocking noise coming from the engine on acceleration. it sounds like its coming from the drivers side of the engine near the intake. it is a tapping noise. I am looking into the cam magnet now but idk if that is the problem because the magnet is on the passenger side of the engine and the noise is coming from the drivers side. but apparently the magnet is paired with the cam shaft sensor. does anyone know anything about this?

No, not really. But have you checked your oil level recently?

https://www.google.com/#q=2008+impal...noise&safe=off

my car has that problem... but im talking about in the engine/trans. the clicking is coming from under the hood not in the dash.

I have been doing research and I see similar knocking problems and it seems that I might have a spun bearing so im gonna drop the oil pan and see if I find any metal shavings.

Does it sound like a random pebble being tossed around inside?

Or is it something that isn't random ?


I've heard an LT1 350 with a spun bearing. It sounded like a random pebble/rock being tossed around. The pickup screen was half clogged with rubber gasket material that had made it's way into the engine oil pan while we did engine work.

when I accelerate, and the rpms go up the clicking matches with rpms. the higher the rpms the faster the clicking. so ill save that for tomorrows project.

I'm going to guess not spun bearing.

Well - check your oil level first. I had a 3.4L lumina that when low ticked quite a bit with the oil low.

well the oil light came on whenever I made a turn... which meant the oil was low but not empty so I put oil in it. so its been back full for 4 days.. and the ticking noise is really loud. when I hit the gas it gets faster. I have been looking around, and I found someone that had the same problem with a video and sounded just like mine and he said its a spun bearing. I also found it could be a bad oil pump making the noise too.

I know this is from awhile ago but my impala is having the same problem, did you ever figure out what the problem was.

He had some posts where he pulled the oil pan off.. but nothing really ever since. :(

Maybe you bought his old car?