This is my first post on forum, but I have lurked for awhile. Apologies if I missed a similar post on the issue. Vehicle is a 94 F250 with factory turbo 7.3 IDI I went to start my truck yesterday. First start since the temperature dropped here over the weekend. It started right up but a second or two later there was a noise (so sudden and fast I can’t even remember enough to describe.) Now it it sounds like a pressured air leak (similar to shooting air from a compressor) coming from around the turbo and it appears I am getting no or very little exhaust out of the tailpipe when idling. If I rev the engine I get exhaust fumes from somewhere around the turbo/exhaust down pipe into the engine compartment. Any ideas where to focus my investigation? Is it likely a turbo issue or just an issue with a break in the exhaust? I have not started to tear anything apart. I am hesitant as this is my first turbo vehicle and it was getting dark and freezing outside yesterday. Also, not sure how to get the factory heat shielding off. Thank you!