My pickup still has 95% of the firewall covering & insulation--only part missing is around the heater box,I assume someone replaced the heater core somewhere in its past,and just tore that part off...
The engine just seems "clattery" compared to many other 6.2's,including my Burb..especially at idle or slightly above,once you get it above 2000 rpm or so it isn't as noticeable..
It also seems to vibrate more than the Burb too...everything in the cab buzzes and rattles,mostly at the lower rpms..that is typical of all diesels to some degree,every one I have owned does that,including my old VW Jetta I had..
If everything is rattling and buzzing, check your motor mounts. That should not be the case.




