|Topic Review (Newest First)|
|11-03-2016 07:50 PM|
|TedWhite||Thanks soulpatch. Yep, I think it's the harness and I'll give the bad news to Bill tomorrow.|
|11-03-2016 05:43 PM|
Sounds like it might be time to bow out.
I ran it by the guys over there and they said either wiring harness issues or CPS.
Too bad about the coolant... heat kills and what a shame on what should essentially be a still healthy diesel.
|11-03-2016 11:16 AM|
Soulpatch, I'm not convinced that BajaNomads is the right forum for this type of technical discussion. This problem needs the assistance of someone with extensive Ford late model repair experience, the type of experience that does seem to exist on this forum.
Anyway, I've been busy trying to make some progress, and here's an update:
A suggestion was made that an electrical plug attached to the parking brake lever in the cab can cause problems. I checked this plug but there are no signs of any problems, and Bill, the owner, never uses the parking brake.
Another possibility was a jammed butterfly valve in the turbocharger cold air tube. Apparently this is a common Ford issue on higher mileage engines than this one. So I opened up the tube to check the valve. It was OK.
While checking wiring on the engine I realized that I should check that there was definitely fuel at the pump, so I removed one of the lines from the pump at the top of the engine and yes, there was fuel. While doing this though I noticed two problems with nearby electrical connectors. Both had broken plastic locking tabs, suggesting that whoever had previously unplugged them had broken the locking tabs. One of the plugs was loose enough to easily slip off with engine vibration.
I also noticed what appears to be an epoxy repair of a broken fitting, and a small diameter rubber tube pushed on loosely over the "repair". I'm sure it's not supposed to be like that because it could easily come off with engine vibration.
While checking a number of other electrical plugs I found several connectors in poor condition so I've come to the conclusion that there is a lot of deterioration of electrical connectors on this engine. It has a very tired look for a 2011 engine, very dirty.
There is still a possibility that the Camshaft Position Sensor is causing the problem, but I really feel that there are too many codes appearing for it to be just the CPS at fault. Every time I turn on the key and crank over the engine I get a whole new batch of fault codes. Some of them are repeats, but there are always new ones. It is definitely looking like the electrical reference voltages for many sensors is screwed up.
On top of all the other issues, I noticed that there was hardly any water in the cooling system of the truck, as if it had been drained. I got a bucket and used it to add 3 GALLONS of water to the radiator and it still isn't full. How did it lose all the water?? I asked Bill, the owner, and he said he didn't know how it ended up with no water in the cooling system. Said 4 mechanics have looked at it, including one at a Ford dealership on the Baja, and none of them mentioned that there was no water in the rad. One of those mechanics, after examining the engine for ten minutes, told Bill to change the engine.
I'm starting to think that the mechanic who suggested replacing the engine might be the guy who knows what he is talking about. If he noticed all of the problems I've already noticed, he probably felt that it will be extremely difficult to isolate the fault, and the general deterioration points towards taking the entire engine out, along with all it's bad connectors, rather than trying to find the problem. I've already told Bill that an engine change could be in the cards.
Thanks to those who have provided suggestions.
|11-03-2016 12:36 AM|
Have you gotten on BajaNomad's and asked about this?
Also, lots of help on Talk Baja on Facebook.
Hope you get it figured out.... I am looking at new 2016 F250's here on Mainland Mexico.
|11-01-2016 11:58 PM|
|gearhead1011||The part in the pic that you have the arrow pointing to looks like a harness retainer that pushes onto a stud. There should be a stud near it somewhere. It won't make any difference with how or if the engine runs unless the harness is damaged from not being properly routed or retained.|
|11-01-2016 10:38 AM|
|TedWhite||Come on guys - SOMEONE must be able to identify the "sensor" or whatever in the photos I posted in post #7. There's got to be a ton of knowledge back there ready to share. Thanks.|
|10-30-2016 01:43 PM|
|larrgh||HA HA HA.......sorry..old guy here....years ago it was imprinted "Emergency Brake" on what is now known as the Parking brake....hard to retrain and old dog...lol|
|10-30-2016 01:24 PM|
Originally Posted by TedWhite View Post
Sent From Infinity and Beyond
|10-30-2016 12:52 PM|
Originally Posted by larrgh View Post
|10-30-2016 12:33 PM|
|larrgh||Just as a SWAG....many seem to complain about the connector near the Emergency Brake Assembly. Check it to make sure it is plugged together and not loose. Might not be the problem, but worth a check.|
|10-30-2016 12:24 PM|
Originally Posted by shoguy89 View Post
I wasn't able to try cranking the engine over until this morning because the batteries were flat when I went to Bill's place a couple of days ago. Anyway, before cranking, the two codes present were P06A6 and P02E9.
After cranking for 1o seconds, during which time the tacometer did NOT register any rpm, the codes present were:
P064C which is glow plug control module
P0335 which is Crankshaft Position Sensor
Yes, I agree that this looks like a nasty electrical problem - there's a short somewhere.
I took a look at obvious connectors like the IAT, etc and could see no obvious signs of chafing or breaks, but I spotted a sensor of some sort near the rear top of the engine that is "loose" and has me puzzled, so I took a picture. (I've been away from Ford for a while so I can't identify the sensor myself). Could someone please tell me what it is? It is attached to an insulated wrap and then dives down behind the engine and it is easy to move around, almost flopping, as if it isn't properly attached down behind the engine.
There are 3 pictures. The first shows the engine with a red arrow showing where the sensor? is located.
The second picture is closer but the sensor? is out of focus, sorry. The third picture shows the sensor? close up.
Just wondering if this item could be contributing to the problems.
Thanks for all the help so far. Bill may have to send the truck north on a flat bed.
|10-30-2016 11:32 AM|
With all those codes, it's defianately NOT a fuel system problem, so I hope you aren't planning on paying for all those repairs that didn't solve the problem.
That said, it looks to me like something cam unplugged. The codes with High Input are circuit malfunctions. Meaning the computer can't see the sensors. I'd be looking for a wiring issue.
|10-30-2016 10:33 AM|
OK, I searched the various codes in the document LARRGH supplied - very helpful. The information there seems to support the idea expressed by JIMMY, that the Vref is being shorted out somewhere in the harness.
I've searched on line for harness info without any luck. If someone has information on the appropriate harness I'd be most grateful - need some color coding in order to know which wires to test. I'm going to try to work it out from looking at the connection to the IAT sensor, but it would be good to have the proper info.
|10-29-2016 06:02 PM|
The 6.7's have not been problem free but have not been nearly as troublesome as the predecessors. Just look at this forum you're in and the low numbers compared to the 6.0 and 6.4 6 years in.
The SWAG is that supply voltage, Vref, being shorted to something is a common cause for P06a6. Something could be the IAT sensor is faulty or the harness is pinched Vref is shorted to a 12v wire. I am not familiar with the harnesses on these engines to the degree needed to tell you where to look.
|10-29-2016 04:05 PM|
Wow, 157 pages to plough through, but I'm going to give it a try. Thanks for the link.
Hasn't anyone else out there experienced a complete shut down in a 2011 though ?? Hard to believe that my friend is the only guy this has ever happened to - please help if you can, because it's not good being stuck in Mexico with no easy access to a dealership.
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