1990 ford thunderbird has a miss gave it a tune up still has a miss not as bad 3.8 v6

1990 FORD THUNDERBIRD
120,000 MILES
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BIGWHITEDODGE
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i replaced everything what plugs would you use
Mar 23, 2012 at 12:11 AM
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RASMATAZ
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The misfires could be coming from a compression or injector problem

Type of plugs preferred OEM part

Refer to this link:https://www.2carpros.com/articles/engine-misfires-or-runs-rough
Mar 23, 2012 at 12:15 AM