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It depends somewhat on which engine and what year truck it is. Older, carbureted or fuel injected models are pretty easy, just do one at a time so as not to mix up the plug wires; Plan about an hour for these, but it should take less. Newer ones (around 2000 on) using individual coil packs for each spark plug are a little more work, not particularly difficult, just more time consuming, because you have to move or remove some extra things like a/c lines and the coil packs to get to the spark plugs; Allow 2 hours or more for these, depending on your skill level, and here's a tip for these; You will either need a true spark plug socket with its rubber insert or use an old spark plug boot for unthreading and threading the spark plugs; They are situated at the bottom of a tube, through the intake manifold, and you will not be able to use your fingers, period.

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14y ago

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