2005-2009 Mustang Information on The S197 {Gen1}

spark plug gapping

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Old 3/6/08, 10:25 AM
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spark plug gapping

do all plugs have to be gapped? or do some come pre-gapped so to speak

i remember buying Bosch 4+ plugs for my 96 mustang v6 and just pluggin them in and they worked fine..

was that just luck or what? lol
Old 3/6/08, 12:59 PM
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If you put the HT1 plugs in , I believe they are gapped pretty closely to factory gap. I put the HT0 plugs in while I was N/A and left them set to the gap they came with and I had no problems. I believe they were between .045" and .050" , of course now I have them set to .030" ...
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