6.9L IDI Diesels (Not Powerstrokes) 1983-1987
I have an 87 6.9L diesel that sat for about 4 years. The injector pump had gummed up so I replaced it. I started bleeding the injector lines and everything seemed great but when I cracked the line on cylinder 8 it puffed air like a backfire. Is this from injector pump timing or a bad/stuck...