Kodeman
Registered User
Hello all. I picked up a 1992 f250 4x4 with the 7.3 and a 5 speed. I had a question for you guys. The guy i bought it from said the motor only has 20K miles on it. (yeah yeah yeah) Well when i start the truck up it shoots out a good amount of white/blue/black smoke. Then just idling it doesnt shoot out any till i hit the throttle and let off. Then once its warn it doesnt really smoke at all or if i restart the truck once warm i have no smoke. any idea whats causing this? rings, heads,air in fuel sys? any help would be great thank you. Kodi