P04DB
Post Fiend
Joined: Nov 2001
Posts: 6,748
Likes: 118
From: Tallassee, ALabama
You have a CCV problem. This has been happening a lot here recently. Ford has extended the warranty period for the CCV. Take your truck to the dealer for repair.
The 6.7L diesel engine has a crankcase ventilation separator mounted on the driver side rocker cover, with a
tube connecting the separator to the fresh air inlet of the turbocharger. The tube on the separator side has a
tamper proof collar installed and is plastic welded to the separator. On the fresh air inlet side, a hall effect sensor
is present, to detect connection to the inlet casting assembly. The tube cannot be disconnected on the separator
side, and if it is disconnected from the inlet casting, a P04DB code is set, as sensor output drops below a
calibrated threshold. There are also circuit range checks, P04E2 and P04E3 to detect shorts to ground, or short
to battery/disconnected sensor, respectively.
The 6.7L diesel engine has a crankcase ventilation separator mounted on the driver side rocker cover, with a
tube connecting the separator to the fresh air inlet of the turbocharger. The tube on the separator side has a
tamper proof collar installed and is plastic welded to the separator. On the fresh air inlet side, a hall effect sensor
is present, to detect connection to the inlet casting assembly. The tube cannot be disconnected on the separator
side, and if it is disconnected from the inlet casting, a P04DB code is set, as sensor output drops below a
calibrated threshold. There are also circuit range checks, P04E2 and P04E3 to detect shorts to ground, or short
to battery/disconnected sensor, respectively.
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Jun 27, 2018 04:10 PM
