I have a metallic rattle coming from my engine and cannot find where the noise is coming from. The sound happens from about 2000-3000 rpm in all gears. I have checked the entire exhaust and heat shields and all feel sturdy and look great.

I'm at a complete loss. Any ideas?

 

Is this an automatic or manual transmission?

Oil level okay?

I will post some info. for you later to check the drive belt.

I don't seem to remember any specific problem like what you are describing; but, I'll check.

 

Check that the drive belt tension is okay. On the tensioner, there is a pointer and gauge. The pointer should be between the range marks in the picture I've attached. The pointer is not actually shown in my picture. If the pointer is in range, start the engine and observe the position of the pointer while the car is idling. If the pointer moves or fluctuate a lot, then the tensioner needs replacement

There was a Honda technical service bulletin regarding engine whine between 2,000 - 3,500 rpms which was due to the oil pump; but, yours is a rattle. That doesn't sound like your problem; but, the link is here for your info. It also has a sound clip for you to hear the whine.

http://www.driveaccord.net/forums/at...8&d=1261007082

 

If you can, have someone rev up the car to around 2,000 + rpms and see if you hear it coming from the drive belt tensioner or the pulleys in the area.

 

Another thing you can do is loosen the belt and try to spin & wobble any of the pulleys. See if any of them are making the noise.

Rule out external stuff, but then consider the timing chain as possible source of the sound.

 

out of adjustment valves can also simulate an engine rattle at certain rpm levels. how many miles? ever had the valves adjusted? what kind of oil are you using?

 

Try a "poor-man's stethoscope". Cut a piece of scrap garden hose & hold that up to your ear. Don't get it caught up in the rotating belts & pulleys.

Narrowing down the location of the sound will always help out 'cause we can't hear it from here.