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Old 08-20-2009, 06:20 PM
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Squeeling?

I just loaded my new livewire (9625OR) on my 6.4 and took it out for a test drive. It made some weird high pitched squeeling noise under part throttle sounded kinda like squeeky brakes. It didnt do it all the time just here and there. It seemed like it went away after a while but if I drove it hard and then drove it normal it comes back. I did get a DTC, U0073. When I looked it up it said this. I just want to make sure its nothing serious.

" U0073 Control Module Communication Bus A Off " Huh?
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  #2  
Old 08-20-2009, 06:23 PM
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Any kind of "squeeling" noise would bother me....
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Old 08-20-2009, 06:32 PM
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I'm hopeing its just a belt, it has never done that before but it doesnt seem to effect how it runs at all. I'm just hoping the added power over my old tuner just jogged the belt loose. Its got just a hair over 100,000 miles and its the original belt so I may just change it in the morning and see if it dosnt do the trick.
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Old 08-20-2009, 06:35 PM
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I had the same issue, turned out it was the AC belt!
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  #5  
Old 08-20-2009, 06:37 PM
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Quote:
Originally Posted by SANDSAILOR View Post
I'm hopeing its just a belt, it has never done that before but it doesnt seem to effect how it runs at all. I'm just hoping the added power over my old tuner just jogged the belt loose. Its got just a hair over 100,000 miles and its the original belt so I may just change it in the morning and see if it dosnt do the trick.
Make sure you change/get both belts, the 08's have a separate belt for the A/C compressor!
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  #6  
Old 08-20-2009, 06:46 PM
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Quote:
Originally Posted by CobbsDieselPerformance View Post
Make sure you change/get both belts, the 08's have a separate belt for the A/C compressor!
Would it still do it on the A/C belt even if the A/C was off?

Thanks for the help.
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  #7  
Old 08-20-2009, 07:31 PM
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How hard was it to cahnge them out, I just looked and it looks like a half day project. Theres alot of crap in the way, looked the the shroud and fan blade have to come out first. Has anyone done a write up on it?
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Old 08-21-2009, 04:45 AM
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Its actually not that bad I had all mine off a few months back just take your CAC tube loose and move it out of the way and the tensioner is easy to get too!
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Old 08-21-2009, 05:40 AM
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Quote:
Originally Posted by CobbsDieselPerformance View Post
Its actually not that bad I had all mine off a few months back just take your CAC tube loose and move it out of the way and the tensioner is easy to get too!
Ok thanks.
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  #10  
Old 08-21-2009, 07:15 AM
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Im surprised just changing belts on these damn things isnt a cab-off procedure
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