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Old 06-16-2010, 09:06 PM   #1
thunderboom7
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Question 1991 pontiac subird plug cap confussed..

my question is on a 91 pontiac sunbird 2.0L plug cap. my glove box owners manual says for a 2.0L and a 3.1L that cap should be .060 .. its says that same for both in the haynes repair manual and the 91 pontaic sunbird service manual. but the sticker under the hood says .045 cap why does 3 of them say it should be .060 and the hood says .045 and which one is right?
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Old 06-17-2010, 07:42 PM   #2
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I'm trying to understand what your trying to say. So you don't know what is the correct spark plug gap?
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Old 06-18-2010, 02:51 AM   #3
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thats correct.. which is right ??? .045 or .060 spark plug GAP
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Old 06-18-2010, 03:11 AM   #4
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The correct gap is .45
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Old 06-18-2010, 03:06 PM   #5
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i have always went by hood sticker for gap. just like to no why everthing else says .060 gap even the pontiac service shop manual.
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Old 06-18-2010, 07:46 PM   #6
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If the 8th digit of your VIN is "K", the proper gap is .045". If the 8th digit is something else, the gap is .060".

Why was that so hard?
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