03 6.0 missing
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Senior User
Joined: Oct 2007
Posts: 168
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From: Howard City, Mi
03 6.0 missing
Hi guys!!
I am trying to figure out a miss in my new to me 03 6.0. I have a Snap On Solus Edge scanner so I can find any infomation you guys need to help me with this. What i have so far is
FICM voltage is constant at 48.5-49 volts.
I disabled the injectors one at a time and recorded the drop in rpms if that would help. I also did a cylinder contribution test also but not sure what i was looking at. Between all cylinders the difference was a high of 2 with a low of -3 in the 4k frames or milliseconds or whatever it reads.
I am trying to figure out a miss in my new to me 03 6.0. I have a Snap On Solus Edge scanner so I can find any infomation you guys need to help me with this. What i have so far is
FICM voltage is constant at 48.5-49 volts.
I disabled the injectors one at a time and recorded the drop in rpms if that would help. I also did a cylinder contribution test also but not sure what i was looking at. Between all cylinders the difference was a high of 2 with a low of -3 in the 4k frames or milliseconds or whatever it reads.
Logistics Pro
Joined: Mar 2013
Posts: 4,097
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From: Kissimmee,Fla
Well looks like you need a FICM. FICMrepair .com is a good place to get it done. Check your batteries individually and your Alt too. Ill bet thats the root of your problem. Check your fuel pressure too while your at it. Welcome to FTE!
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Joined: Apr 2010
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From: Saratoga Springs,UT
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Joined: Aug 2015
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From: NW IA
Good call, sometimes it's the last and best resort.
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Posting Guru
Joined: Mar 2014
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From: Salt Lake City, utah
The bubble test is fairly easy to do.
Remove the top fuel filter and cap next turn the key to the run position but do not start and fill the fuel bowl with fuel almost to the top you can watch from the driver seat between the hood and cowling. Unhook the starter wire from the passenger side fender near the hood hinge. Use that wire to turn the engine over using the stud on the positive terminal of the PS battery. As you are turning over the engine watch for any bubbles that may pop up in the filter housing. If you have bubbles you have an injector/s that’s gone bad.
Confused yet
Remove the top fuel filter and cap next turn the key to the run position but do not start and fill the fuel bowl with fuel almost to the top you can watch from the driver seat between the hood and cowling. Unhook the starter wire from the passenger side fender near the hood hinge. Use that wire to turn the engine over using the stud on the positive terminal of the PS battery. As you are turning over the engine watch for any bubbles that may pop up in the filter housing. If you have bubbles you have an injector/s that’s gone bad.
Confused yet
Posting Guru
Joined: Mar 2014
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From: Salt Lake City, utah
If you have bubbles even very small in the center of the filter housing is the stand pipe. Remove it and in the bottom there are two holes one for each side of the engine. Which ever hole they come out of the injector/s will be on that side of the engine. Next you will move onto removing the glowplugs one by one. By that I mean remove the front glowplug on whatever side is the problem side and retest for bubbles. If the bubbles stop that will be the bad injector.
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Senior User
Joined: Oct 2007
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From: Howard City, Mi
Ok thanks guys, I have to work this weekend so it might be a week before I can get to it.
The object of removing the glowplug is to let the compression go out the hole instead of up through the injector?
The object of removing the glowplug is to let the compression go out the hole instead of up through the injector?
Posting Guru
Joined: Mar 2014
Posts: 1,468
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From: Salt Lake City, utah
Yes the exhaust/pressure is being pushed through the injector back into the fuel bowl so when you remove the glowplug it will release the pressure through the glowplug hole instead of the damaged injector.