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post #1 of 6 (permalink) Old 11-19-07, 03:05 PM Thread Starter
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confused o5 f-150 eng.mis help

ihave 50,000 miles on her and she has a mis in the motor and the eng light is on i was told that it is the sparkplug can that be true with so little miles?

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post #2 of 6 (permalink) Old 11-21-07, 01:59 PM
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Re: o5 f-150 eng.mis help

most common thing with a misfire is the coil pack, read what code it is, should tell you what cylinder is dead.

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post #3 of 6 (permalink) Old 11-21-07, 02:03 PM Thread Starter
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Re: o5 f-150 eng.mis help

it says #2 cylinder code po174&po302 does this mean i need a sparkplug?
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post #4 of 6 (permalink) Old 11-23-07, 04:07 PM
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Re: o5 f-150 eng.mis help

you can try the plug but its most likely the coil thats sitting right on top of the plug.

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87 Chevy Caprice Classic Wagon-307, 2004R, 10 Bolt, what can i say, i grew up with that car
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post #5 of 6 (permalink) Old 11-23-07, 07:10 PM Thread Starter
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Re: o5 f-150 eng.mis help

thanks for your input .the truck runs fine and i did not replace anything yet there is a slugishness to the motor i think its cause the engine light is still on ?
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post #6 of 6 (permalink) Old 11-25-07, 08:41 AM
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Re: o5 f-150 eng.mis help

Read the first sticky?
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