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Power Strokes
6.7 Tech
P191 code...AGAIN!
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[QUOTE="Dzchey21, post: 1091492, member: 63"] IF it were me i would not take it to the dealer right off the bat Looks to me like you need to replace the rail sensor, its external to the engine so it shouldnt be a huge deal to do. If the code still comes back then you need to look at the PCV valve which is in the left hand rail near the firewall. Or the VCV which is the pump. I'm telling you from experience you need to check these on your own for rust. IF ford finds them to have rust on them they will void your whole warranty on the engine for something that might not be the problem at all. These you can do both yourself in your driveway with basic tools and a long T25 torx bit (if i remember right). These engines aren't nearly as difficult to work on. [/QUOTE]
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P191 code...AGAIN!
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