FnFilthy
Registered User
Let me start off with the fact it's a high mile 1992 7.3 (380,000 miles) and I'm contemplating just replacing the engine so I'm a little more confident about long trips.
The motor will puff oil smoke at start up and for a while until it "Clears Out". If I am in stop and go traffic, it loads up and produces smoke ONLY on medium to hard acceleration (but not while idling, only if I get on the pedal). If I get on the freeway and drive for a minute or so, its completely clear. If I then get stuck in traffic or return to town with stop and go traffic and periods of idling, the smoke returns.
Its definitely oil smoke, and not fuel or water. I'm going to check the intake and pull the CDR and clean it up, but if it's rings, it seems like I should see similar smoke blowing under hard acceleration or when climbing hills. During those times, if I have been on the freeway, there is nothing more than the usual light amount of carbon black coming out.
The motor will puff oil smoke at start up and for a while until it "Clears Out". If I am in stop and go traffic, it loads up and produces smoke ONLY on medium to hard acceleration (but not while idling, only if I get on the pedal). If I get on the freeway and drive for a minute or so, its completely clear. If I then get stuck in traffic or return to town with stop and go traffic and periods of idling, the smoke returns.
Its definitely oil smoke, and not fuel or water. I'm going to check the intake and pull the CDR and clean it up, but if it's rings, it seems like I should see similar smoke blowing under hard acceleration or when climbing hills. During those times, if I have been on the freeway, there is nothing more than the usual light amount of carbon black coming out.