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Old 09-01-2012, 11:09 AM   #1
DugMick
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Spark plug change - hot or cold engine?

I need to change the spark plugs on my 3.4 2002 Impala. Is there a consensus on whether the engine should be or or cold to prevent the spark plug hole threads from being damaged when removing the plugs? Also, I read in older posts that the recommended plugs and wires were the Delco 41-101 and 726UU, respectively. Is this still accurate?

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Old 09-01-2012, 11:24 AM   #2
danielsatur
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Re: Spark plug change - hot or cold engine?

Cold, use an anti seize compound + torque wrench too!
See www.alldata.com for gap + torque specs.

Last edited by danielsatur; 09-01-2012 at 01:11 PM.
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