My 96' cutlass supreme with 3.1L engine has a very annoying engine knock/click. I'd say it's more of a loud clicking sound.

It is very loud when starting cold (first start of day) and as the engine warms up it gets quieter, but doesn't completely go away.

While driving it becomes louder and you can hear it when you press on the gas pedal, and when you let off the gas it dies down but a person can still kinda hear it.

Here is a video of the engine idling

http://www.youtube.com/watch?v=RQcfbEZBTVY


Any ideas would be greatly appreciated. I know you probably won't be able to diagnose it over the web, but any ideas/tests would be awesome.

Thanks

 

Could be a sticky lifter, try some Rislone or similar product to free it up.