HFCM Issue
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HFCM Issue
So I attempted to drain the HFCM today on my 2013 powerstroke and a blue/greenish liquid came out (which I assumed was diesel) so I did not drain much. I tighten the cap as much as I could and started driving and the check engine light came on. I ran the codes and it said something to the effect of reduction in power. I cleared the code, tightened the drain plug and the light came back on a few minutes later. Anyone have any thoughts or ideas on the issue here??
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Joined: Dec 2016
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I just bought the truck so it is currently under warranty. At first, I though I just didnt tighten drain plug enough which was causing it to leak. Now I'm thinking I may have overtightened the drain plug which supposedly could have it leak along the frame rails. Not sure.
Hotshot
Joined: Nov 2013
Posts: 10,107
Likes: 96
From: Hempstead, TX
If it is somehow sucking air into the DFCM through the drain valve, or anywhere else, you will get low rail pressure and cause a reduction in power. You may have pinched or rolled the O-Ring in the valve and allowed it to suck air.
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Post Fiend
Joined: Nov 2001
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From: Tallassee, ALabama
Leaving the plug disconnected will NOT set a code.
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Fleet Mechanic
Joined: Oct 2006
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From: North Florida
Interesting, I wonder what code indicates that. Anyway, it's great that you got it repaired for under a hundred bucks.
Post Fiend
Joined: Mar 2013
Posts: 5,929
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From: EC Iowa
Sorry for my error here.
I have left the one on my combine disconnected and it throws a MIL.
but never tried it on my truck. I shouldn't have assumed.
I have left the one on my combine disconnected and it throws a MIL.
but never tried it on my truck. I shouldn't have assumed.
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From: Medford, OR
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