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Old 05-10-2013, 06:08 PM   #10
Ed Wright
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Default Re: GM 4l80e trans vibration in O/D when towing

Quote:
Originally Posted by Keith 944 View Post
good ideas, my 99 454 m/h does the same thing intermittent miss. changed plugs, wires, cap etc. ran great for year, think it is due again...
I have found a lot of that is dirty injectors. And no, pouring something in the tank won't fix it. LOL
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