Codes P0765, P0768 and P0982, Transmission shift solenoid d?

Tiny
PHEELINGPHINE
  • MEMBER
  • 2007 FORD EDGE
  • 3.5L
  • 6 CYL
  • 4WD
  • AUTOMATIC
  • 82,000 MILES
I rebuilt my transmission, never done this before. Everything seemed okay, I only added new frictions and a couple of the metal-clad pistons, and other small parts and seals. After installation, I was getting TSS codes even though it was a new Motorcraft TSS sensor, so I got a second TSS and installed it. Still, the same codes pertaining to TSS. I then got a second allegedly new lead frame solenoid pack. Now, the TSS is good but after doing some of the shifting procedures detailed by Sonnex in the solenoid body installation guide. Everything was smooth at first. Then suddenly it started shifting a little harshly, mainly into reverse and popped this p0765 code. I cleared the code, and started shifting smoothly again but eventually popped the codes again, now adding the p0768. I decided to try using FORscan to monitor and control the solenoids. I activated shift solenoid "d" while in neutral, there was a sudden clunk noise, and threw these codes. P0765, p0768, p0982. I've been attempting to use a multimeter to check the wiring and have only done resistance readings so far. The readings coming from the PCM were all well under 5 oms. My main question is. Was it okay to activate solenoid d while in neutral? The other solenoids seemed to make no noise when manually activating them. Thanks in advance, Jonathan
Friday, January 27th, 2023 AT 7:14 AM

9 Replies

Tiny
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I forgot to mention. This is a 6F50N transmission.
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Friday, January 27th, 2023 AT 7:37 AM
Tiny
JACOBANDNICKOLAS
  • MECHANIC
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Hi,

To check the solenoid, it should be in neutral, so I don't see a problem with what you did.

The TSS and OSS are common problems on these vehicles, but since they are new, it sounds like a wiring issue to the SSD (shift solenoid D).

I attached diagnostics below specific to the all of the codes indicated. Each code takes me to the same diagnostics. Again, the code is specific to the SSD. Others are mentioned.

Let me know if this helps.

Take care,

Joe

See pics below.
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Friday, January 27th, 2023 AT 8:13 PM
Tiny
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Thanks, Joe!
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Friday, January 27th, 2023 AT 10:09 PM
Tiny
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Hello, I decided I better use one of the extra solenoid bodies I have lying around to hook up to the transmission connector externally to test the power of the TSS outlet on the solenoid body. I have a pinpoint test procedure I'm following. One pin is giving me my 5v reference signal, but the main power pin #2, isn't giving me anything, the pinpoint test says to get a new PCM if no voltage is present. So, this whole time it may have been the PCM, I hope so. I already ordered a used one from eBay. I took a small drive since I asked my first question. Now, the shift solenoid d light and codes have stayed clear, but the TSS stuff came back, p0717 and p0705, the faults are electrical, and it seems like the more the transmission warms up the worse it gets. Anyway, have you heard of symptoms like these before from a PCM? Joe, you have been a big help! Thanks in advance. Jonathan
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Tuesday, January 31st, 2023 AT 7:38 AM
Tiny
JACOBANDNICKOLAS
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Hi,

Yep, the TSS signal isn't present when it should be. So, we have an electrical issue or a faulty sensor. I looked at my manual and it shows the power supply as pin 20 to the TSS. See pic 1.

Next, I suspect the wiring issue is before the transmission. The P0705 indicates the transmission range sensor signal to the PCM is wrong. If you haven't already, check the connector for any damage.

Let me know.

Joe
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Tuesday, January 31st, 2023 AT 6:11 PM
Tiny
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Hello, Joe. Sorry, it's been so long. I stupidly decided to try a used PCM, after the pinpoint test that I thought was telling me I wasn't getting power to the TSS. Of the three pins on the sensor, the reference voltage was suitable, but the middle pin was supposed to have power as well, but I was getting no reading. Ford says to replace PCM. I thought I checked the wiring to the best of my abilities. So, I got the new computer installed and started the vehicle, after warming up for over an hour and doing some shifting, N, R, N, D, R, D, N. After the fluid reached a temp of 160F, I put it in R, waited probably 10 seconds, and gave it a little throttle very slowly, a pretty loud and painful clunk is heard. I turned the Ford off and came into the house, frustrated and defeated. In retrospect, had I not been so frugal, I could've bought a used tranny with the money I'd spent. So, I didn't mention that the solenoid strategy and body id are not up to date. I did buy a VCX Nano J2534 tool, so I could update the strategy, just afraid to spend more money. I guess I would have to pay $50.00 for 2 days of access to update. I've read articles in the transmission digest available online, stating that some garages weren't doing these updates with minimum drivability issues after doing a couple of drive cycles. I think I'll take the front cover off again today, and try doing more electrical testing again. Are you still thinking it's a wiring issue? Thanks in advance. Jon
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Saturday, February 18th, 2023 AT 8:08 AM
Tiny
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Hi,

No problem whatsoever. Trust me. I know how frustrating things can be. As far as the continued issue, I do feel it's an electrical problem. However, I'm a bit worried about the clunk you heard. How would you bed describe it? Did the vehicle jump or anything when it happened?

Joe
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Saturday, February 18th, 2023 AT 8:09 PM
Tiny
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No, maybe slightly. I'm worried too! I removed the solenoid body again today, and ran the pinpoint test for the TSS, again. Although this time I got a good reading for the power to the TSS but a high resistance reading from the component side ground pin. I am not quite sure how to root this out. I do see that pin 9 on the trans connecter is for the OSS/TSS ground. I thought I remembered getting good resistance readings between the PCM connecter and the trans connecter. I'm at a loss. Thinking of just shelving it for a while till I have consistently good weather, and the money to buy a used tranny. Maybe after the removal of the current nightmare. I'll swap over some of my newer components, and maybe be able to have a shop right whatever is wrong, to eventually be able to sell it and recoup some of the money lost. What are your thoughts, Joe? Thanks for your patience and kindness. Jon
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Saturday, February 18th, 2023 AT 8:28 PM
Tiny
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Jon,

My biggest concern is if you replace the transmission and it's an electrical issue, you may be in the same boat.

You indicated high resistance on the component side. If it is excessive, you could have an internally broken wire or connector issue. When you check it, move the wiring around to see if the resistance changes and let me know what you find.

Joe
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Sunday, February 19th, 2023 AT 9:19 PM

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