Ford Powerstroke Diesel Forum banner

Many TorqueShift Questions...

5K views 17 replies 11 participants last post by  hardhatz 
#1 ·
Here's my sad tale..
2007 F-250, 6.0 diesel & torque shift, all stock
11,000 miles.

I bought it used, after it lost its way & followed the boat it was towing into the drink. :doh:
I have had a few wiring issues caused by the salt water. Of course, this voided the warranty.

Now, the trans is acting up. At first, it would occasionally have a hard shift, or maybe a neutral between 2nd & 3rd.

Later, the tow-haul light would blink, and it would refuse to shift above 3rd. Turning the engine off & re-starting would cure it for a while. Eventually, it would not go above 3rd.

The codes it threw were P 0741 & P 0756
741 is "solenoid B"
756 is TC lockup solenoid.

I replaced the trans harness, because my local FoMoCo parts man told me they sell about 1 a week. That did not cure it.

When I had it open, there was some evidence of moisture in the pan & inline filters, but the fluid was not overly cloudy.

The Ford Mech asked about that, because he states: The clutch pack linings are attached with a water-based glue, and will fail in the presence of water. I do not know if that is true, but if it is, we have to watch for that.. :(

When the trans harness did not fix the problem, I ordered all 7 solenoids, because I could see that they had been partially wet at one time. They have not yet arrived.

Meanwhile, the truck stopped on the freeway & threw a 1644 code, which I am told is "low voltage" I towed it to Ford & they put in an injector pressure switch or some such... The trans problem persists.

So, the service advisor called me BEFORE the tech even dropped the pan & tried to sell me a full rebuild. Her logic was that if we merely replaced the solenoids, the trans might not be right, or might fail later.

I get parts at a very good price, and still the quote was 2500 pts & 1200 labor. This seems high to me...

Am I naive?

Is 3700 a good price for a rebuild?

Would it be better to go for an aftermarket trans like a ATS etc?

Anybody have some good advice about a trans shop?

I am in Riverside, Southern California


I will update as this lovely drama unfolds.
 
See less See more
#2 ·
from what i've heard Brians truck shop is the guru on these transmission's. and yes if it got any water in the trans it's probably toast.

I'm sure someone that has used BTS will chime in, You can probably get one from him for that kind of money.
 
#3 ·
That money for a stock rebuild? I'd DEFINITELY go aftermarket for that kind of $$$. I've heard good things about BTS and Suncoast. I think I'd go Suncoast when the time comes, just cause.

I'd try and work out the electrical bugs first, change ALL fluids and then get that tranny fixed.
 
#4 · (Edited)
I may be wrong and someone will chime in if I am but I dont think BTS(Brians Truck Shop) works on the torqueshift.

Give suncoast a call and see what they say on a built tranny. I have never priced one myself but I would check on a built one before I paid that much for a rebuild.
 
#5 · (Edited)
Update 1:
Dealer called & said truck was ready to pick up.

The engine stall was due to a bad Fuel Pressure Regulator. Runs fine now.
They installed all 7 new solenoids in trans.

DTC code 1433 blows as soon as you start it. Anybody know why that might be?

Still doesn't shift into 4th or 5th.
0741 & 0756 as soon as it should upshift to 4th.

Tech says it needs a new trans. Which was the same thing he said before he pulled the pan. He says the clutch lining is shot & its slipping that's why no 4th. (later when questioned how he arrived at this diagnosis, he became quite vague) He did not explain why the linings in gears 1 through 3 were not affected by the moisture. Those shifts are as crisp as ever.

I pointed out that the DTC states that the solenoid has not operated, and he says "that's why customers should not be allowed to have a code reader". I thought that somewhat arrogant, considering his own lack of answers.

He says the code blows because the shift occurred but the clutches didn't grab. Personally, I think he's full of Dextron, because if it is a matter of missing lining, why was the problem intermittent for several days? Can turning the key off for 5 seconds actually let the clutches repair themselves?

After discussing the issue for a while, it was determined that he really had no idea at all where the problem lies, he just wants to play Pin-the-Tail-on-the-Donkey with my truck. Of course, he wants to start with the most expensive thing first.

Apparently there are several electronic items that help the trans do its thing. If any of you wise men out there have a ready list of these items, please share.

Meanwhile, I bought the harness for inside the cab, and the harness for ECM to transmission. I will try them tomorrow & see if there's any difference.

Suncoast has a neat "extreme duty rebuild kit" for about 9 Benjamin that looks like a nice alternative to stock parts, in case I have to rebuild. I see they are counting the plates, (5, 5, 5, 6, & 6 plates) is that more plates than stock?

I'd like to hear some feedback about torque converters too.
That 3-disk unit looks pretty nice... Is it really necessary in a stock truck that doesn't work hard?
 
#6 ·
you can get the rebuild manual off ebay for about 10 bucks . Ive read it front to back. Because we dont have valve bodies i dont think a rebuild would be that hard. Although I rebuild Clocks in my spair time so gears and small pieces dont intimidate me. That and i love to take things apart.
 
#8 ·
thats way over priced, also. I did the rebuilding it route. I WILL NEVER do it again. Next time I will just buy new, and the best parts that are avaible.
 
#9 ·
Update 2:

Installed the ECM-to-transmission hardness (the install was not difficult)
no change.

Pulled the dash out & removed the main harness. There was plenty of evidence of corrosion in the connectors, so it definitely needed to go. I am cautiously optimistic...
 
#10 ·
Shifts are commanded by the PCM via the shift solenoids. I would say that the trans harness (that you already replaced) would be suspect as well as the solenoids. Your clutches are likely fine.
 
#12 ·
Well, that is what I am thinking too, something between the PCM & the solenoid. Is it possible that the PCM could be bad & it would code like a solenoid?
 
#11 ·
2-3 shift nuetral thing is a normal characteristic of the 5R110. I've had 6 tranny's in my truck to fix that problem and every single one does that. The last 2 units actually broke but the truck was still drivable. Maybe it's a California thing. What dealer did you take it to?
 
#13 ·
F---way in Orange County. The agency in general was very helpful. I just thought the tech could have been a bit sharper..


. Maybe it's a California thing. What dealer did you take it to?
 
#14 · (Edited)
Okay...

I got the interior harness installed & the truck would crank but not fire, so I took it back to Ford. They charged my $95 to look at it & they found a bent pin on the ECM. I was embarrassed, but happy to pay the $95, but then they said "by the way, it throws some more codes & we need an additional $315 for more diagnosis". I was not unhappy about that either, except I wanted to know what codes. The Service Writer would not tell me!

I called him back a few hours later and asked him again point blank what were the codes. At first he would not say, but finally he told me "P0107 & P2132". I asked what those codes were for & he resolutely refused to tell. He did say that they had not cleared the codes. So, I went & got the truck & drove it home.

Turns out (thanks PSDers) that 0107 is manifold pressure & 2132 is throttle position, HOWEVER, as soon as I reset them, they never came back. So, they must have been a remnant of the bent ECM pin. I was pretty stunned that they apparently wanted $315 to clear the codes & restart the engine! Crooks...

So, I still have the original problem of 0741 & 0756 which is TC lockup & Solenoid B are performance problem or stuck in off position. If anyone knows where I can find a wiring diagram that will help me run this fault down, that would be great. Or, a reputable repairman in the area of Riverside, California...

BTW, I am assuming (since I have all new solenoids) that they are simply not getting power. Is there another scenario that would cause these codes?...
 
#16 ·
more info...

I drove it around a bit this afternoon & I noticed 2 things.

If I shift manually, 2nd & 3rd both give just 2nd gear. To get 3rd, the lever must be in Drive.

I had a couple of times it didn't want to go into reverse, and one time I had a neutral after coming to a stop.
 
#17 ·
Trade it on a non-aquatic version lol.
 
#18 ·
Yeah...

I think maybe lose it & go back to that Ol' 20 year-old Chevy in the back yard that runs like a Rolex and has never given me a moment of grief despite much worse abuse. Heck, I have taken it in the water & mud so many times it has moss growing on the rearview mirror. I only got the new truck because my GF couldn't stand to see me slummin' it.
 
This is an older thread, you may not receive a response, and could be reviving an old thread. Please consider creating a new thread.
Top