
Re: Changing 2004 Tahoe 5.3L spark plugs
Our Fords with the 5.4 and 6.8 idle for entended periods. The first set of plugs that we pulled at 100,000 miles. We were amazed that the engine ran, let alone did not skip. the gaps were twice what they should have been. We now replace them at 50,000 miles. I... Login to read more. ![]()
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