rattling noise sometimes when cold

[bikerboy4lif]

i got a 93 x with the 4.0. sometimes when it's cold it will make a rattling noise from the engine, but as soon as i put it in drive it will go away. What could cause that?

 

[Xplodor]

Heat Shield. =)

 

[bikerboy4lif]

really??? what shield is it? and why would it go away wheni shift into drive? it could be that put i thought it sounded like more of a heavier sound

 

[Crankcase]

Is it a ticking, or a "pop can rolling on floor" type of sound? The second sound is the muffler heat shield loosening.

 

[jimbo74]

my truck does that... well, mine does it becuase my truck's tcase skid is bent up and touching the tcase........ when in reverse is the only time mine does it....

 

[Xplodor]

just because when it's in park, the truck will vibrate differently then when it's in drive at a standstill.