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Hello I just bought a 2005 ford f250 6.0 diesel. Im used to gas engines but not to familiar with diesel yet. But my problems are it puffing out white smoke. I've just did an oil change with full synthetic motorcraft filter. I changed out the fuel filters. Ran some fuel cleaner put some oil additive (both diesel hot shot brand) . Drained out any water and cleaned out the pump. Took out the egr and cleaned it. I just installed a coolant filter and drained out most of the ford gold and used something with CAT ECI rating. The smoke smells like unburnt fuel. I'm not losing any coolant. I bought a scan gauge. The fcim doesn't drop below 47 volts. The coolant and engine temp stay around the same. As weird as it sounds it won't smoke all the time. It will smoke really bad then it won't like nothing ever happened. Besides it being an injector failing or something along with fuel pressure I'm not sure. Any ideas?
For starters I would get something like Forscan downloaded on a laptop and then get you a ELM327 dongle from Amazon or elsewhere to plug into the OBD port.
Scanguage is great for data but not codes. You need to scan for codes. Might be something as simple as a poor connection at the plug.
I think i have read here that Ford gold does not like to mix with some other coolants. Getting "most " of the gold out might not be good enough. Maybe others will chime in with more specific advice. I know this wasn't your question but it jumped out at me. Gelling and clogged oil cooler comes to mind.
Update: got forscan did the injector buzz test (twice). Didn't show any faults. The only alarming one was the boost was under pressure (p0299). So it's not showing any fuel problems. Could it be a bad sensor or dirty turbo? I know it has a vgt system instead of a normal waste gate. So i read to really get on it to try to keep the viens from sticking and I've done that (plenty of times) here's all my codes
