rattles

[jax4bangin]

i have a 4 banger manual and if u short shift, say 1st to 2nd at 2100 rpm or less it makes a rattle noise. wats this about?

this in on my 2007 truck but my 95 did the same thing

 

[Hahnsb2]

It's detonation from lugging the engine, don't do it.