different po284 code

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Sep 16, 2009 | 12:46 PM

jeklhyde

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different po284 code

I've read all the posts on the DTC P0284 Contribution #8 issue but still have a question.

'06 F250 w/ 150k miles. Yesterday it started running rough spordaically. As the day progressed the roughness got worse and black/blue/whitish smoke got thicker. I let it cool and the roughness and smoke get better but as it warms up it gets worse. It only throws the single code.

Does this sound like a fule pump or something else?

TIA.

Sep 16, 2009 | 01:13 PM

npccpartsman

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From: Stuttgart, Ar

That code means that cylinder #8 (drivers side against the firewall) is not outputting as much power as the others. Typically it means it's a bad injector, but it could be rings, piston, etc. anything that would not allow that cylinder to make as much power.

No, it doesn't sound like a fuel pump.

Sep 16, 2009 | 02:48 PM

jeklhyde

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I was thinking the pump because that's one of the things the other posts said could cause that code-low fuel pressure starving the number eight (last) cylinder.

I guess its off to the dealer....what a lovely experience that will be.

Thanks for the quick reply.

Sep 16, 2009 | 06:41 PM

npccpartsman

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From: Stuttgart, Ar

Quote:

Originally Posted by jeklhyde

Actually #7 is much further than #8, but I don't think that would throw a C/B code. Let us know how it turns out.

Nov 23, 2009 | 10:03 AM

jeklhyde

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AGAIN???

Okay so took it to the dealer and after a full day they give me the news.....bad #8 injector. So $1000 and two days later I am on my way.

All is well for the last two months till this morning. Throwing code PO284 again (code is gone now after letting it sit for an hour but I expect it to come back once I drive it some more).

Question-If it turns out to be the #8 injector again what are my recourses with the dealer? Do they warranty repairs?

Thanks all.

Nov 23, 2009 | 10:26 AM

69cj

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From: Middle Tn.

Most repairs at the dealer I go to are warrantied for 12 mo/ 12,000 miles. Whichever comes 1st and providing there are no mods that they can point their finger at.