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Pre-Power Stroke Diesel (7.3L IDI & 6.9L)
Is It Normal

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Is It Normal

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Old

Sep 21, 2004 | 07:44 PM

#1

warren1994

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Is It Normal

I've seen a few trucks with stacks in my area, they pour out black smoke. Is this normal, 'cause my 21/2" exaust doesn't do it. I also would like dual 5" stacks.

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Sep 21, 2004 | 09:09 PM

#2

Dave Sponaugle

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From: Nutter Fort, WV

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That depends on how much you turn the fuel up. If it is pouring out black smoke they have the fuel set way to high. Black smoke is incomplete combustion, to much is wasted fuel. To much is also hard on the rings.

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Sep 24, 2004 | 08:18 AM

#3

Dieseldan7.3

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From: Peoria IL

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Yeah, you need new injectors and a new injector pump. You probably need a new tranny too, you just never know.

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Old

Sep 24, 2004 | 08:19 AM

#4

Dieseldan7.3

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From: Peoria IL

Turn up the pump about three turns

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