Codes help

[Skooter]

Hey I'm getting these codes
P0011, P0021, P0128, P0130, P0150, P0457

Please help me with these, I attached a screenshot of the codes from my scan tool. Its the last pic...

Hey all, new here. New Expedition owner. Picked up a 2011 Ford Expedition XLT that confuses me. Im not sure if its XLT or King Ranch. I read they discontinued the King Ranch for Expys with 2010 being the last year. But that some XLTs are XLT/King Ranch. My XLT was fully loaded leather seats with the heat/ac in the seats, power liftgate, sunroof, originally had sync with navigation system, digital ac/heat controls. I included some pics so let me know what you think about the King Ranch thing.

 

[Hamfisted]

Did you get a CarFax report on the Expy ? You can run the VIN through one of the online VIN decoders, or ask the dealer's parts department to run it for you to see what options it came with. If it was an XLT that had been crashed and repainted an XLT in a King Ranch two tone scheme, you never know. Does it have the unique King Ranch leather interior ?
A few of your DTC codes indicate the need of a new 195 degree thermostat, and try spraying some WD-40 on the fuel fill flap hinge to free it up so it seals better.

 

[Skooter]

Yup I got the seafoam cleaner spray. Im about to try that. I ordered a new thermostat. Its the o2 sensors that are baffling me. Both upstream sensors bad?

 

[drankinatty]

First squirrel away the https://charm.li/Ford/2011/ link (and go down to Expedition and pick either 2wd or 4wd) for your service manual. That's where the pin-point diagnostic steps to isolate what the failure is (VCT solenoid, mechanical short to ground, electrical issue between VCT and PCM, etc..) Then navigate to the P0011 code https://charm.li/Ford/2011/Expediti...stic Trouble Code Descriptions/P Codes/P0011/ and then click the "Pinpoint Test HK" link at the bottom to go to the pinpoint test to isolate where the exact issue is. (P0021 is the same thing for the driver side - bank 2)

The same document has the pinout for the PCM connectors (which of the 3 bundles that plug into the PCM and which pin goes where in each bundle). That link is provided in the Pinpoint Test. If I recall, you will be dealing with the left of the 3-PCM connectors, and you will just have to reference the pinout for which pin in the connector. When testing, some recommend using sewing pins to probe the individual female sockets on the PCM and VCT connectors. I used a 22 ga bit of insulated copper wire (roughly the same diameter as the sewing pin) to plug into the connectors to get the readings with a multimeter. (this issue is you don't want to put anything larger than the actual male connector-pin in the socket and risk damaging the socket by over-extending the contacts)

You can just step though each HK pinpoint step and determine where the failure is. None of it is difficult, but can take a while to work through.

The dual upstream O2 sensors have a similar pinpoint test procedure. Simply use the same document to lookup up the code, e.g. https://charm.li/Ford/2011/Expediti...osis/A L L Diagnostic Trouble Codes ( DTC )/

Good luck!

 

[Skooter]

Well the P0457 is gone since I cleaned with seafoam spray. Im gonna put the thermostat right now.

 

[drankinatty]

One down four to go, good job. If it wasn't clear above, I strip about 3/8" off both end of the 22 ga. wire I use to probe the female connector sockets. (I had just said 22 ga insulated wire -- but obviously you don't want to stick an insulated end into a socket...)

The good thing about the linked pinpoint tests are they cover every possible mode of failure from sensor failure itself, shorting within the sensor, shorting of the sensor to ground, the shorting of each run of wire to ground and the potential shorting or voltage transfer between wires in the wire bundles. Doing each step is what takes a bit of time, but it is well worth it to identify the actual failure and not guess.

The good thing about the pinpoint tests and their diagrams is they identify the exact wire colors for whatever wire you are testing coming into the connector, the orientation of the connector pins (+/-, or signal/feedback) and identify what you should read at that connection during each step of the test. Basically it is just having you check voltage and resistance/connectivity of each wire, socket and pin at each end of the connector to cover each possible cause of the code you are reading. (and it does that in a reasonably logical sequence, e.g. verify the solenoid/sensor, then works through the wiring and connection issues)

The dual failure of VCT solenoids, etc. and dual failure of upstream O2 sensors, are just as likely (probably more likely) than some failure at a common point in the wire bundles where each of those wires/signals just happen to come together. Depending on the environment the vehicle has lived in, corrosion is also a possible common cause. The pinpoint tests eliminate any guesswork, so you (or your mechanic) isn't just throwing parts at it and saying "well that didn't fix it, so let's replace xyz next." The pinpoint tests will work down to the exact problem. Good luck with the remaining codes. Remember, it's not a race, so just take your time and work though the diagnosis (hopefully in a warm, dry place with the radio on)