Need suggestions on rattling noise

[minjies]

I have a 02 Ford explorer that has been making a rattling noise on startup and noise lowers just a little bit after driving for a while. We changed out the rear timing belt tensioner and the front timing belt tensioner, like some forums suggested, but that did not make a difference.

 

[Cubanlorenzo]

Check heat shields on the CATS. They're known to break loose and rattle. Mine was rattling pretty loud from 2500-3100 rpms

 

[BigRondo]

I also had a loose heat shield that was rattling. Worth a shot to check it out.

 

[94Eddie]

You might have a rattling torque convertor. Does the noise go away when overdrive engages?

 

[wangbungal]

check your belt tensioner, just replaced mine

 

[ronwc]

cat

Just replaced one of my cats, was doing just as you described. Inside was loose and rattling, would change when warmed up. Now quite and smooth as normal.