CEL P0401 Tsb 12-6-11 - Ford Powerstroke Diesel Forum
6.7 Motor Problems 6.7 Motor Problems

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  #1  
Old 01-17-2013, 04:59 PM
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CEL P0401 Tsb 12-6-11

I had a cel that came on the other day then went away. Two days later came back. The code p0401 ( insufficient egr flow) ie clogged erg cooler. 1/2 a day at the dealer new cooler and no CEL. That and a rad leak, no other issues in 55k.


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  #2  
Old 01-27-2013, 08:47 AM
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This egr cooler thing seems to be pretty widespread issue
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  #3  
Old 01-27-2013, 12:11 PM
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yes and I've changed quite a few primary radiators also
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Old 01-27-2013, 01:37 PM
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What are these things having the same rad issue the 6.4s had? Now on these things they use 2 rads on LTR and one HTR correct? They use one that pirmarily for the charge air cooler and egr cooler? Thats the way navostar does it expect that they use a coolant control valve to controll the temps
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Old 01-28-2013, 05:33 PM
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yep 2 rads. One is a low temp cooling system for things like the fuel cooler, trans cooler, charge air cooler etc
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Old 01-29-2013, 02:45 PM
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CEL P0401 Tsb 12-6-11

I think it's kinda neat they use 2 water pumps. Pretty neat if ya ask me. Even cooler the 4 rocker arms per clyinder


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  #7  
Old 01-30-2013, 12:44 PM
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I was hoping Ford woud have fixed the radiator on the 6.7. That was the main reason i traded my 6.4.
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