1990 f150 302 spark plug question

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03-26-2012, 06:45 PM

B Dobz

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1990 f150 302 spark plug question

How often should I change out the spark plugs?They are the copper core plugs just like the one that came with it from the factory.How many miles do you get out of plugs?

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03-26-2012, 09:04 PM

EPNCSU2006

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I usually change plugs, cap, and rotor every 25000 miles. The copper core plugs should be the original plugs used in 1990.

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03-26-2012, 09:21 PM

B Dobz

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I have 40,000 on the cap and plugs so i guess i`m due.

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03-27-2012, 03:44 AM

TexasGuy001

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I do mine about like he said. I'd say your due for some new Motorcraft or Autolite plugs.

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