Check Engine Light
Thread Starter
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More Turbo
Joined: Aug 2010
Posts: 630
Likes: 30
From: Green Acres, Ca.
Check Engine Light
I got the dreaded CEL at 20,500 miles. Took it to the dealer early friday morning and after an hour they tell me that it will probably take some time because they hadn't had a problem with the DEF system before, so I'm taking it back to them on tuesday to leave it and they are going to give me a loaner. I was told that the code being displayed had something to do with the DEF system. They did ask me if I had ran out of DEF an my answer was "No, but I did get an 800 miles till empty message but that was over a year ago". We shall see. 
Senior User
Joined: Aug 2010
Posts: 194
Likes: 0
From: Saugus,CA
I got a CEL light on Thursday night. Took to the dealer on Friday. They said it is the NOx sensor. They didn't have a new sensor in stock so they ordered one. I am supposed to bring the truck in again on Monday to have it replaced and the system reset. They say that they haven't seen this go out before. I have 23,000 miles.
Posting Guru
Joined: Nov 2010
Posts: 1,783
Likes: 1
From: WY
OH GREAT!
I pi** off the mod guy and now I get a CEL!
Just kidding Tom.
Unless you really do have the power to hand out CEL's??? 
Now I gotta search for that thread about holding down some button while you turn the key while sitting side saddle and rubbing your head and patting your tummy, or something like that, to see what the fault is.
I pi** off the mod guy and now I get a CEL!
Just kidding Tom.
Unless you really do have the power to hand out CEL's??? Now I gotta search for that thread about holding down some button while you turn the key while sitting side saddle and rubbing your head and patting your tummy, or something like that, to see what the fault is.
Elder User
Joined: Feb 2010
Posts: 700
Likes: 0
From: Northern Il/Cabin in Wi
OH GREAT!
I pi** off the mod guy and now I get a CEL!
Just kidding Tom. Unless you really do have the power to hand out CEL's???
Now I gotta search for that thread about holding down some button while you turn the key while sitting side saddle and rubbing your head and patting your tummy, or something like that, to see what the fault is.
I pi** off the mod guy and now I get a CEL!
Just kidding Tom.
Unless you really do have the power to hand out CEL's??? Now I gotta search for that thread about holding down some button while you turn the key while sitting side saddle and rubbing your head and patting your tummy, or something like that, to see what the fault is.
Posting Guru
Joined: Nov 2010
Posts: 1,783
Likes: 1
From: WY
Went to the dealership today and had the CEL checked out. NOX sensor for me too. Goes in next Tuesday.
Spent some time visiting with the service mgr about the HPFP and cracking/breaking valves. Said he hasn't seen anything yet about either one. He seemed pretty surprised when I told him about FOMOCO's decision not to honor warranty. Anyway, bought some more fuel and air filters and PM-22. I keep em in the back floor for emergency.
Spent some time visiting with the service mgr about the HPFP and cracking/breaking valves. Said he hasn't seen anything yet about either one. He seemed pretty surprised when I told him about FOMOCO's decision not to honor warranty. Anyway, bought some more fuel and air filters and PM-22. I keep em in the back floor for emergency.
Lead Driver
Joined: Apr 2011
Posts: 7,302
Likes: 1,153
From: Edmonton Alberta
You guys that are going in for NOX sensors should at least read this. I had P164A and a new sensor did nothing to fix it, waste of time. Hope this one is solved by now ........ 
https://www.ford-trucks.com/forums/1...d-tsb-ssm.html
https://www.ford-trucks.com/forums/1...d-tsb-ssm.html
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Posting Guru
Joined: Nov 2010
Posts: 1,783
Likes: 1
From: WY
Thanks for the extra info Darren.
The SM tells me it's an ez fix nowadays. We'll see next week.
I still not convinced Tom didn't cause this.
The SM tells me it's an ez fix nowadays. We'll see next week.
I still not convinced Tom didn't cause this.
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Thread Starter
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More Turbo
Joined: Aug 2010
Posts: 630
Likes: 30
From: Green Acres, Ca.
The dealer now has my truck. Mechanic hasn't dealt with any DEF system problems before. After checking all his flow charts and consulting with FORD they came to a conclusion that the DEF pump is the problem. Pump will be here tomorrow. I called them back and said "since you are keeping the truck overnight, start it first thing in the morning and listen to the turbo howl and let me know if that's a problem or just normal stuff". We shall see.
Thread Starter
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More Turbo
Joined: Aug 2010
Posts: 630
Likes: 30
From: Green Acres, Ca.
Got my truck back just now. Diagnostic codes P202D reductant leak and code P20E8 reductant pressure too low. Replaced reductant pump, in other words the DEF pump was not working properly. Only 14 miles since the repair but no CEL. They also told me that the turbo howl was nothing outside the normal.
Super Moderator
Joined: Aug 2003
Posts: 25,479
Likes: 738
From: Isanti, MN
Got my truck back just now. Diagnostic codes P202D reductant leak and code P20E8 reductant pressure too low. Replaced reductant pump, in other words the DEF pump was working properly. Only 14 miles since the repair but no CEL. They also told me that the turbo howl was nothing outside the normal.
Not my problem anymore I guess.
New User
Joined: Dec 2011
Posts: 11
Likes: 0
Got my truck back just now. Diagnostic codes P202D reductant leak and code P20E8 reductant pressure too low. Replaced reductant pump, in other words the DEF pump was working properly. Only 14 miles since the repair but no CEL. They also told me that the turbo howl was nothing outside the normal.
Senior User
Joined: Aug 2004
Posts: 350
Likes: 1
From: central MN
My check engine light came on the other day. I have 84800 miles. If it is the reductant pump does anybody if this would be covered under warranty? This would be an emissions part and how long does that warranty last. Also, How much roughly would it cost if I had to pay out of pocket? Thanks, Jason