97 exhaust smoke - Ford Powerstroke Diesel Forum
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Old 06-12-2013, 02:50 PM
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97 exhaust smoke

i have a 1997 f250 wit a 7.3. i bought the truck with 277,000 miles on it, and have had to do very little to the engine, except a few sensors which were replaced preventatively. the truck is now at 307k, and as far as i can tell, seems to be running relatively strong. but one thing i've always wondered about, any other diesel ive run, if you rev up the engine repeatedly, or put a load on it and push it to go, the engine will smoke a little. i have never once seen this truck puff any black smoke out whether it was pulling a load or normal driving. im not complaining about it, i am merely wondering if this is normal engine behavior, especially at 300,000 miles.
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Old 06-13-2013, 05:52 PM
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Mine would do that when the clamp on the downpipe was loose.
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Old 06-14-2013, 01:06 AM


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It shouldn't smoke at all if its stock the injectors are only 90cc and the turbo is pretty efficient
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