Question about 2008 GMC Acadia
Correct spark plug gap
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Posted on Jan 02, 2017
Usually somewhere on the engine or in the engine compartment, there is a sticker with the engine specifications. The spark plug gap should be included. If not .032 or an inch should be close.
Posted on Jun 26, 2008
This actually depends on what plug you are using. A platnium plug should gap at .060" while the conventional plug is gapped at .045". The AC delco 41-392 gaps at .060" while the AC delco rapid fire gaps at .045"
. I would recomend the 41-392 and gap it at .060" however there is some desperity in the manual and labels on this matter as platnium plugs were a newly offered back in that day.
Posted on Jul 26, 2009
they come pre gapped with collars to prevent the electrodes from getting bent .platinum and iridium plugs will have the surface damaged if you were to adjust them with a feeler gauge,like old plugs had to be gapped. ac or ngk plugs come pre gapped in the box.
Posted on Aug 22, 2009
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