Question about 2005 Chevrolet Silverado

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We got the spark plugs out of our 2004 Chevy Silverado just fine. Got 7 of the 8 replaced easily. The back on on the passenger side of the engine is giving us fits! We can't get it to go in and connect to the threads! We've tried from above, from below, using a mirror to verify that nothing fell inside by mistake, we find no reason it shouldn't go in! Any ideas???

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  • julesbird57 Jan 19, 2009

    We'll give that a try. We're very hesitant to re-thread, don't want to destroy anything. The old spark plug came out very easily, so we believe it was ok. In comparing the two plugs, there is no significant difference between the threads. We're really confused by this.

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Use a short piece(maybe 2-3 inches) of vacuum hose just big enough to fit on terminal of plug. this should help you align the plug to the hole in the head - if that dont work,get a spark plug hole re-threader tool,maybe previous owner did something he shouldn't have

Posted on Jan 19, 2009

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