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Re: Changing 2004 Tahoe 5.3L spark plugs
Posted to Technical Tips Forum on 12/13/2020 1 Reply

You just made me wonder if one or two threads should be ground off before installing the plugs on the 3V ?? There are many more threads in the head than on the previous generation head only having about three. If the plugs could be modified carefully and then ... Login to read more.

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