Big *** knock in 6ltr - Ford Powerstroke Diesel Forum
 
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post #1 of 5 Old 09-24-2013, 03:40 AM Thread Starter
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Big *** knock in 6ltr

I've had the truck for approx. two months. Prior to, started great no problems . Left the truck sitting for the last couple of days , Started up yesterday morning was approx. 48 F outside , took about 5 -6 cranks to turn over , then a huge knock for about 20 sec's then back to running fairly smoothly.. this is a first time experience with this knock.. any input?
2006 f350 6ltr 234K
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post #2 of 5 Old 09-24-2013, 03:46 AM
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Hmmm that could be a lot of things any codes smoke anything ?

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post #3 of 5 Old 09-24-2013, 03:49 AM Thread Starter
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no codes,, I'll check this morning when I start it up for smoke and if the knock persists. its a little early here 4;49am,. don't think the neighbor would appreciate me.. get back to you
thnx
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post #4 of 5 Old 09-24-2013, 04:23 AM
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id guess a bad injector or two , need to start by checking for codes , check ficm voltages and then have a legitimate cylinder contribution test run when engine is cold to verify which injector it is


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ITS STOCK
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post #5 of 5 Old 09-24-2013, 06:08 AM
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Agreed^^^^^^^

04 harley davidson f-250 arp headstuds oem gaskets,sb intake,edge cts egt probe,sct sf3 idp tuned/ php tuned,blue spring,zerex coolant swap,mbrp 5 inch xdp 6 inch tip,sinister egr cooler,new oem oil cooler,atlas 40 ficm,Painted cac tubes 7.3l wire loom,Diesel site coolant filter
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