I seafoamed my car yesterday and followed the thread posted in the forums. Went for a "spirited" drive and all was well. Today, I start it up and had to do some errands. I started to hear what appears to be rattling plastic. It does not sound like lifters, rods, flexplate, or any spun bearings. It can only be heard sitting in the car with both doors closed (sound coming from the dash on the driver side). It can only be heard at idle. No exterior noise underneath or in the engine bay that I can hear. Anybody shed any light?

 

Anybody?

 

If you say the sound is not coming from the engine, and can only be heard inside the car, and not outside. More than likely its just a coincidence, and has nothing to do with the seafoam.

 

I wasn't trying to link this noise to me Seafoaming the car. Sorry for twisting my words. I think I can't hear it outside of the car because the exhaust is loud. The rattling does not go away once the car warms up or quicken when engine is slightly revved.

 

Anybody at all?

 

its your concience. seafoam helps your engine it shouldnt hurt it in any way.

 

I am not relating this noise to Seafoam as I stated above.