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Why Would My 6.9 Do This?

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Old May 19, 2006 | 10:19 PM
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sams6.9
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From: HALLSVILLE TEXAS
Why Would My 6.9 Do This?

at idle if you push the timing advance rod in on the drivers side of the injection pump on my truck why does the diesel clatter go away? I have alway heard that it is supposed to make it stumble. This one has me stumped, because it does not stumble it just quiets down. Also it does this if i run it up to 2000 - 2500 RPM and push the rod in. Thanks for the help.
 
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Old May 21, 2006 | 12:00 PM
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From: Manitoba
When and how was the timing last set, just a guess but it may be off time and the reaction is different.
 
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Old May 22, 2006 | 09:53 AM
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From: HALLSVILLE TEXAS
timing has never been touched. its the original ip
 
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Old May 22, 2006 | 07:58 PM
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if you havent been using a fuel lube type additive, you may be having the advance piston gawled from lack of sulfur content in the fuel and wont move properly.
 
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Old May 23, 2006 | 10:26 PM
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From: HALLSVILLE TEXAS
I use a additive every fourth tank. But it is going to shop in the morning (kinda scared about putting it in someone elses hands) cuz i got to have this truck for work.
 
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