#8 injector po284 cylinder contribution - Diesel Forum - TheDieselStop.com
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99 & up 7.3L Power Stroke Engine and Drivetrain Discussion of the 99 & up 7.3L Power Stroke diesel engine and drivetrain in the 1999-Up Super Duty trucks and Excursions. No gas engine discussion allowed except on transmissions and drivetrain that pertain to all models. Please confine discussion of topics in this forum to those items that are specific to the 7.3L Power Stroke engine.

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Old 11-09-2005, 08:25 PM   #1 (permalink)
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#8 injector po284 cylinder contribution

i guess i neeed to replace #8 injector.po284 present on cylinder contribution test,plus i can hear the "cackle".where can i get a new injector? any good directions on how to change it?
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Old 11-09-2005, 09:46 PM   #2 (permalink)
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Re: #8 injector po284 cylinder contribution

As number 8 is the hole they put the long lead injector in to help with the cackle issue you have to be carefull about changing it out when it fails a contribution test because they will fail even if it is good. If the injector was changed over to a long lead but the calibration was not changed it will log the code. Also aftermarket scanners will log as it failing. You must have a very noticeable miss and hear that #8 did not make a change in the tone of the engine.
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Old 11-09-2005, 09:49 PM   #3 (permalink)
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Re: #8 injector po284 cylinder contribution

i live on the oregon coast and am having a miss problem i don't car much for the dealer here do you know a good shop in the w valley
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Old 11-10-2005, 12:30 PM   #4 (permalink)
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Re: #8 injector po284 cylinder contribution

[ QUOTE ]
do you know a good shop in the w valley

[/ QUOTE ]

My brother in-law is the Service Manager at Brattain International in Eugene and he says that they have an excellent mechanic down there. Everyone really likes the mechanic at the Portland International store also.
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Old 11-10-2005, 02:50 PM   #5 (permalink)
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Re: #8 injector po284 cylinder contribution

My # 8 failed the CCT also. I replaced it and it ran exactly the same. I then had a "break-out-box" test or "injector performance analyzer" test done by the dealer and they ID'd the #6, which turned out to be the dead one. The cost at the dealer was about $150 and the local injection shop quoted me the same.
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Old 11-10-2005, 03:03 PM   #6 (permalink)
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Re: #8 injector po284 cylinder contribution

CLICK HERE to read a post that has some good info on changing them out. The way I did it (in the post) I did not make a mess at all. [img]/ubbthreads/images/graemlins/smokin.gif[/img]
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