View Full Version : Spark plugs
07-04-2006, 02:43 PM
I was wondering ,does any body know why Gm list different part #'s for the Ac delco plug for 2.4 and 3.4 but but yet Bosch, Ngk , E3 and all other companies list same plug and Part # for both the 2.4 and 3.4????? Gm claims they aren't interchangable but why are all these companies listing them as the same ????
07-04-2006, 04:38 PM
because the other companies arent made directky for GM cars. They will work and are the correct application for that brand, but you will have a ruff idle and the car will just not run right. Stick to the delco's for the best results.
07-05-2006, 05:02 PM
Thanks for the info ..
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