Today while I was driving home, my OverDrive light was blinking and the Service Engine turn on. I stop by Advance Auto parts and check the computer and I got error P1747. I found out P1747 means Electronic Pressure Control Solenoid - Short Circuit. After 15 minutes the Overdrive light stop blinking. I reset the Computer at Advance Auto Parts. The F150 still is acting up.
Like some metal sound and the tranny running rough. I just went to put gas on my truck and pulling out my drive way and made a scraping noise, then it started working fine. Is there a reason why this is happening. I check all my fuses. All of them are okay. What can it be causing this problem?.

 

P1747 EPC solenoid short circuit:
It can be a short circuit in the wiring harness or the PCM shorted to ground. It can also be a faulty solenoid.
Crawl under there and follow your transmission wiring harness to ensure you don’t have chaffing or a pinch in the wiring. If not, you should consult with a tranny shop for a thorough diagnosis. Be sure they don't try to sell you a whole new tranny. Call ahead with this info and find someone reputable.

 

I have some one from my church that I forgot that rebuilds transmission. I told him about my problem. The first thing he ask me was if I ever change the transmission oil? I bought the F150 with 136,000 miles. Now it haves 141,000 miles. Really I haven't change the oil. He says that the selinoid is inside the transmission. He was going to charge me $350.00 to change the selinoid, transmission fuild and filter. The Ford Dealer wanted $500.00 and they said they might have to bring the transmission down. My friend told me that to change the selinoid you don't have to bring the tranny down. Hopefully after this repair nothing else is wrong with my transmission. Ford wanted for a Re-manufacture tranny between $2500 - $3000 bill. My friend said that after he finish this job to pray that nothing else got damaged. Worse senario would be to re-build the transmission it would cost me $1500.00

 

m having a similar problem but I have a 2000 f150 7700 with the 4r100 tranny in it my over drive light flashes I get code po1747 and when I drive forward or back all it does is hesitate and will not even do 10 kmh I also get 8 other codes which are po1451, po755,po1747,po443,po743,po1409,po135,po155. I cleared the codes tried to drive it and it did the same the engine light came back on and I got the flashing over drive light and less codes this time witch are po1451,po755,po443,po743,po1747. I have checked all the wiring nothing is chafed all the connetors are good and clean the alternator is putting out 14.5 volts and the batt passes a load test fine. I am at a loss on where to go from hear. Any help would be great thanks.

 

Hey Cranguy,

Did you ever get any answers to your codes of your vehicle? We have similar codes and are trying to get answers.

 

did you ever get an answer on how to fix this problem, or could you tell me what it was that you did to fix it

 

Did anyone ever get the answer or fig out what the problem was??