Rocker arm issue? - Ford Powerstroke Diesel Forum
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post #1 of 18 Old 08-26-2012, 07:33 AM Thread Starter
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Rocker arm issue?

Here is a little back ground on my situation first. I just sold my 09 and had every intention in buying a 2012. After reading more more about the lack of power tuned I changed my mind for now. My buddy was in a bind financially and sold me his 08 for real cheap. It has 56,000 miles and is bone stock. Has been stock all its life. I have no experience with a stock 6.4 as mine have always been tuned the day after purchasing them. So I am not sure what is normal as far as engine sounds go in stock form. Here is the deal. At idle there seems to be a different sound on the passenger side of the engine. I would call it a very light thumping. It almost sounds like a deep exhaust tone from a gasser. You wouldn't be able to hear with the hood down unless you knew what to listen for. It is noticeable to me with the hood up and changes tones when I open and close the air filter lids. I have searched about the noise and it usually points to a rocker arm. I listened to a few sound clips online of trucks with the issue. The sound clips online were very noticeable in the video even with the hood down. I took a video of mine to compare. Mine sounds almost normal on video. Is this a cause for concern?


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post #2 of 18 Old 08-26-2012, 07:38 AM
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i believe id just keep my eye on it for a bit and see if noise gets worse


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post #3 of 18 Old 08-26-2012, 07:43 AM Thread Starter
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Yeah I will probably do that but I am just ready to tune this thing but don't want to have to strip everything off if I have to go to the dealer


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post #4 of 18 Old 08-26-2012, 07:46 AM
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true , take it to them and just let them check it ,only thing would be if they didnt find anything wrong , they would want to charge you the time


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post #5 of 18 Old 08-26-2012, 07:47 AM Thread Starter
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I did check it for codes and nothing. I am sure if it would throw a code though for a broken or damaged arm


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post #6 of 18 Old 08-26-2012, 07:55 AM
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yeah and make quite a bit of noise


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post #7 of 18 Old 08-26-2012, 07:58 AM
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If its a bad rocker, bent push rod or a bad lifter I personally would get it checked out ASAP as you are taking a chance of a valve contacting a piston and that will turn this good deal on a truck into a very lousy one.

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post #8 of 18 Old 08-26-2012, 08:14 AM Thread Starter
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I would think this would be covered under warranty? 08 with 56k miles. And everything sounds normal inside the cab


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post #9 of 18 Old 08-26-2012, 09:08 AM
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Not sure and if it is warranty covered is the warranty valid for you since your not the original owner? Maybe someone can chime in that knows for sure.

SCT, no studs...yet, Dual OEM intake air filter housings, Banks intercooler & intake elbow, Banks exhaust system, Windrunner ported intake manifold, Bullet Proof Diesel remote oil cooler & thermostat, AirDog2 (plus a couple spares), Power steering filter (Amsoil dual-bypass), MagTec deep ATF pan, Electric oil pre-lub pump, Dakota Digital gauges.
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post #10 of 18 Old 08-26-2012, 09:16 AM Thread Starter
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I would think the ford factory warranty is transferrable but not sure. If its not covered I def won't be taking to the dealer to have them diagnose it or work on it


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