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Question about timing

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Old 09-04-2017, 03:31 PM   #1
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Question about timing

After installing Mini Maxx w/trans tune and fully deleting my truck I have a rattling sound when accelerating. Almost sounds like detonation on older gas engine. Buddy tells me I should set timing to 2 and run tow power level to cure the rattling.

What do you all think? Truck is a 09 with auto trans and I only run stock power setting because I don't want to damage my trans or blow head gasket. I am happy with power at stock setting, more concerned about trucks components lasting as long as possible, and mpg.

Any reccomendations on what my settings should be?
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Old 09-04-2017, 10:05 PM   #2
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No one wants to help an old man out with this new technology? Last diesel I had was a mid 80s 6.2. All mechanical no computers, much easier to work on.
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Old 09-05-2017, 06:54 AM   #3
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You can try to up the timing and see what it does
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Old 09-07-2017, 08:42 AM   #4
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I have same truck as you. 2009 with 6.7 & 68RFE. I went with the defaults thru the install of the min max, but I run the tow tune all the time. My mechanic said it wouldn't hurt it, and so far EGT's & trans temps confirm this. Diesel's do rattle, so can't help you there.
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Old 09-07-2017, 11:34 AM   #5
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Usually the rattle is from additional timing, i notice this with my smarty and a cold engine. Try reducing timing to remove rattle.
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Old 09-09-2017, 11:58 AM   #6
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Thanks everyone. Set timing to 2, and running tow. Rattling gone with more power. Just wanted to make sure I wasn't going to prematurely wear any components out doing this.
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