2000 XLS pushrod 6 really loud

[DurocShark]

I previously had a 1999 XLT and it was much quieter than this 2wd 2000 XLS and I can't figure out why. Took it to my usual guy and he went over everything, even replaced motor mounts (he said they were fine, but I insisted). There's no rattle, tick, knock, whatever. It's just a really loud roar in the cabin.

Any ideas? Could it simply be less insulation compared to my XLT?

I'll say that it's a pleasure to get in my Saab after driving the Explorer. Such peace...

 

[RandomNerd2000]

Sounds like your tires, my 01 has AT tires on the back and they make a real nice roar, they were on the front, and the newer tires on the rear, I switched them around

 

[J_C]

Roar changes more with speed or engine RPM? If speed, tires, if engine RPM, might have exhaust leak.

 

[Runnin'OnEmpty]

Check to see if the underhood insulation has been removed.
That makes a huge difference in vehicle noise.