Ford F150 Transmission Problem codes P0712, P1783
Can some one here shed some light on an issue that I am having with my 2003 F150 5.4L V8? This is my 3rd F150 from Ford in the last 8 years so I am a repeating customer of Ford. I started seeing my Overdrive light flickering when it should not be, and it does this whether it is in the on position or off position. The OD still works but the light flickers… I noticed that the shifting started to get a little rough so I decided to take it in and get the transmission fluid/filter changed. I was informed by the mechanic that he pulled the following diagnostic codes: P0712 and P1783.
Here’s what the codes mean:
P0712 TFT, wiring, PCM 157°C (315°F) indicated TFT sensor circuit grounded Voltage drop across TFT sensor exceeds scale set for temperature of 157°C (315°F). Firm shift feel. WIRING OR TFT SENSOR
P1783 TFT Transmission over temperature condition indicated Transmission fluid temperature exceeded 127°C (270°F). Increase in EPC pressure. WIRING OR TFT SENSOR CLOGGED COOLER
I was told that the codes and symptoms were indicative that my transmission needs to be replaced which obviously did not make me happy with only 63k miles on the vehicle. The dealer wanted another 1,200.00 to tear apart my transmission so they could fully diagnose the issue and I said no way! That’s just to tear it apart not fix the problem. (I was quoted like $3000.00 for a rebuilt transmission.) I then contacted Fords Corporate Customer Service and explained the situation. The Ford customer service rep and manager then told me they will not consider assisting me until they completely diagnose the issue, meaning I pay the money to have the dealer rip apart my transmission to tell me its bad. Makes absolutely no sense to me as a re-occurring ford customer for almost a decade.
I spent time on-line researching the codes (P0712 and p1783) and found numerous of posts were Ford owners were having the same issue. Most of them were either told to replace the Sensor/wiring kit for the transmission as that is what the codes refer to as the problem. It appears that when they replaced the sensor, the problem went away and then came back??? Seems to me that this is a defect issue and ALOT of Ford owners are very UN happy about this issue from what I have read all over the internet. Why doesn't Ford address this issue as it seems to be a very wide spread problem in ALOT of different vehicles using this transmission. You would think that FORD would want to assist or Help re-occurring customers when a major issue like this is brought to there attention.
If anyone has any information regarding this issue, I would surely appreciate it. Thanks in advance for your time and comments.