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Two valves or three?

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Old 12-06-2009, 05:36 PM
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Default Two valves or three?
I have the 4.6L engine in my '04 STX, however, I'm not sure if it is a two valve or three valve engine. How do I go about find this out?

Thanks for your help.
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Old 12-06-2009, 05:39 PM
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4.6L in a 2004 truck? It's two valve.
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Old 12-06-2009, 05:40 PM
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its a 2v if its a 04 they didnt introduce the 3v 4.6 to the f150 until 2009
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Old 12-06-2009, 05:40 PM
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It's a 2V, 3V's are in the 09+
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Old 12-07-2009, 01:59 PM
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Thanks everyone. Now for the next question. Does the two valve 4.6's have the same spark plug problems?
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Old 12-07-2009, 02:09 PM
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I am pretty sure that it only effected the 5.4L IIRC.
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Old 12-07-2009, 02:18 PM
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Lenn, thanks. I just wasn't sure. I tried to sort it our from various post and was just getting more confused.
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Old 12-13-2009, 08:55 AM
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...the TSB idicates only the 3v having the plug problem.
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Old 12-13-2009, 04:09 PM
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60DRB, that is very good to know. I have about 10,000 miles to go before I reach 100,000, at which point I will be changing the plugs.
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