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Message: <blockquote data-quote="jklingel" data-source="post: 38398" data-attributes="member: 1409"><p>So what is white smoke? If I start up cold, I get a little bit of white smoke for about 1 second; just a good puff, then it is gone. That used to happen to an older diesel truck I had, too, every time I changed the fuel filter. There was no way (that I knew of) to re-fill the fuel canister manually, so I just filled it part way, stuck the filter in, and cranked the engine till she fired. Poof; white smoke. Is that just burning too lean? If so, I don't really understand why it smokes if there is excess air. Somebody clue me in. thanks. john</p></blockquote><p></p>