6.9L IDI Diesels (Not Powerstrokes) 1983-1987
I have a 1985 f250, with a 6.9 idi and a c6 transmission and Im experiencing top end speed loss.
When I bought the truck, it would run about 65 mph @ 3500 rpm. Injectors were leaking, so I replaced all 8 and replaced all the filters on the truck. Also replaced the alternator. Right after...