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1990 Mercury Cougar Question: how do you change the sparkplugs



Visitor, 3.8L V6 Supercharged, Lockport, IL, September 15, 2010, 13:07

when driving it acts like its missfiring

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  • Answer #1

    September 15, 2010, 13:37

    very tight on the supercharged motor. it pays 2 hours in a shop. plan on double or riple time if you have no expierence.


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  • Answer #2

    February 29, 2012, 21:16

    check sparks wires just took mine in because of that prob they fix it up great in a full tune up

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