SERVICE CODE P-284? - Diesel Truck Forum - TheDieselGarage.com
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post #1 of 3 (permalink) Old 06-24-2010, 02:46 AM Thread Starter
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SERVICE CODE P-284?

1999 F-350. RUNNING ROUGH WITH ALOT OF WHITE SMOKE. SCANNER BRINGS UP P-284 #8 CYLINDER CONTRIBUTION/FAULT. INJECTOR PASSED BUZZ TEST BUT I REPLACED IT ANYWAY. STILL HAVE SAME PROBLEM, WHERE DO I GO FROM HERE???
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post #2 of 3 (permalink) Old 06-24-2010, 06:35 AM
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Not to question your intelligence but you sure you did #8, rear cyl on LH/drivers side.
P0284
Possible causes:
broken compression rings
inoperative injector assembly
leaking or bent valves
bent push rod
broken rocker arm bolts
bent connecting rod

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post #3 of 3 (permalink) Old 06-24-2010, 11:28 AM Thread Starter
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YES, I DID CHANGE #8 INJECTOR. DRIVER'S SIDE REAR INJECTOR. THE OLD OLD LOOKED GOOD, SEALS AND COPPER WASHER WERE STILL IN GOOD SHAPE.
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