![]() I'm attaching 3 PDF files that should help you troubleshoot without complete guesswork. Left side ? Center Plug? The damn documentation seems to tell me everything BUT that. Pin 36 37,38, 39 on the left drivers side plug or center plug. Pin/4 violet/white wire at trans harness has +12volts Looks like it would be hard to get the others do actuate without driving. (Ie: The Transmission Manual 2 Solenoid States charts indicates Solenoid "A" is going to be energized in PARK-REVERSE-NEUTRAL-& 1st GEAR.) Placing the selector in 2nd gear should de-energize it - BUT NOT Energize anything. Should be HOT unless one is calling for energize. Then testing pins 36 ->thru 39 at the PCM, KOEO. I would probably be for testing for 12v on the Violet/White wire at/near the transmission with KOEO (or maybe KOER in park). ![]() Looks like the PCM (Pins 36, 37, 38, 39) supplies ground path for all four solenoids. ![]() It traverses the next 5 schematic pages from left to right (1-5) ~ (5-1) ~ (1-2) ~ (2-5) ~ (5- Pin 4) where it appears to be common to Sol "A", "B", "T/C", & "EPCS" as you said. Electrical Service Manual indicates the Violet/Wht breaks out of the harness (S140) near "Back-up lamp switch to rear lamp feed harness, near breakout to H02S12". You got the relevant end points and wire color right. So i can read the resistance, between fuse 33 and the pin on the plug for one of the solenoids If fuse 33 is good, then there is a high possibility and chance it is somewhere between the fuse and the solenoids along that wire, Let me know if that is a possibility and I will provide them.įuse 33, to violet / white 1-5-4 then splits to shift solenoid A + B / TC / EPCS (Torque Pro is the only one I am familiar with that does). I've done lots of research in this area and found, identified, and worked out formulas for about thirty transmission parameters that are very useful if you have a scanner that will allow you to specify custom parameter IDs. (NOTE: You may have to set explorer security options to allow opening PDF files online - but promise they are safe).Īlso, It sounds from your post you are having someone else scan for codes? FORD provides a wealth of data via the OBDII system on the transmission's operation. They are pretty large (and my server is slow) so the will take some time to download but you can save them to your computer. I have placed them on my personal web server from which you can download. First, I have two sections from the Ford Factory Service Manual covering transmissions in PDF format. I'm no transmission expert but may be able to offer something helpful for someone willing to dive in as you seem to be. You provided a nice detailed problem description. No noticeable phaser knock, cam issues present. Transmission fuild was clean prior to changing. No transmission slipping, truck would run out and shift great before, no noticeable issues. When accelerating the truck nothing, nothing, then it gains a lot of power at about 2500rpm. It was there before but much more noticeable now, when the truck is stuck in second gear. I also have a concern about the pump in the transmission, I don't know if there is a way to check it or not.Īlso Could it be posiible, torque converter problems ?Īnother thing I have noticed more now in limp mode, is the truck seems to come "On Cam" about 2500rpm. Change the transmission pressure control solenoid? Take my chances changing the pressure control solenoid myself. Transmission service shop / or garage.? Local specialist shop. What should it cost and is it likely than can see what is causing the codes.ī. Which was good color and smell, just over filled.Ī, should I go to the dealership and pay for diagnosis? The closest dealer is 30+ miles away from me. As soon as I had the issue the first thing I did was check for burnt or low fluid level. Because it read high right before I changed it out. So what could be causing it to read high level? Obviously it could have to much fluid, but could there be another reason for it. It is reading high, completely over the top of the dipstick. When I changed my transfuild and filter, I put 5 qts of new fluid in. Checked wires around the exhaust, and o2 sensors as well. I have checked all electrical connections, wires, fuses and the hard harness in the transmission. I Go scan again, and get codes p0743, p0755 p0962 Reset the computer, and immediately MIL CEL trans error. I change the fluid and filter, with sileniods. I purchase the *tcc solenoid and the *shift solenoid, fluid and filter. I go pull the codes with a scanner I get p0743, and shift solenoid B, and one other code. I jump in and hit the highway, travel about 3 miles and the truck goes in limp mode again. CEL, MIL Mode" all come on going through the drive thru.
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