Ford 7.3L Power Stroke (1999-2003) :: Trans Not Shifting Out Of 2nd Gear - Code PO782


Jun 23, 2016

My friend has just brought a truck and has lost 3-4 gear in the auto trans. We have the PO782 code coming up. Is there something in particular we should look at first.

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Ford 7.3L Power Stroke (1999-2003) :: Trans Not Shifting Into 1st Or 2nd / Truck Acts Like In Neutral

So I put in new clutch yesterday. Reverse works, granny works, 3,4,5 work. ZF6 manual. But when I try to go 1st or 2nd. Its as if the truck is in neutral....what should I be looking for. I bought the truck having only knowing the clutch was completely shot, was not told about this 1&2 gear issue....

Do I need to pull the trans out again... or is there something I can see or adjust, because from what i can see where the shifter connects there is no adjustments. Is it probably a gear selector fork...or connection that took a crap. when moving in granny gear i did not hear any irregular noises....

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Ford 7.3L Power Stroke (1999-2003) :: Hard Shifting And OD Off Light Start Flashing After Driving A While With New Trans

2000 powerstroke 4r100 transmission. It has 155k just had it rebuilt and the shop is having a night as am I. It was shifting hard and the o/d off light would start flashing after you drove it a while. Its still doing the same thing and the shop checked the whole wiring harness and replaced the accumulator twice believing they got a bad re-manufactured one. The only code I can pull is a 605 pcm read only memory error. Could the cause be a bad pcm? The shop doesn't seem to have a clue at this point and I'm out 2500. IV taken it back twice now and Iv driven it a total of 35 miles since the rebuild...

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Ford 7.3L Power Stroke (1999-2003) :: Trans Slipping On 25hp Tune Up High In RPM Band And Shutters When Up Shifting

My excursion's trans is slipping on the 25hp tune up high in the RPM band and shutters when up shifting. I have dropped to stock most of the time, but I know i am on borrowed time.

I had a JW trans in my e99, and there is no question on the durability and performance of the transmission. The price has gone up a lot, but that's maybe not the big issue.

I live in the mountains and spend a lot of time pulling and just driving in that 40 to 60 mph range over mountain passes. That is basically where I spend ALL of my time.

The distance between 3rd and 4th is driving me CRAZY! I have researched everything from swapping to a manual, to PCS controllers, to trying 4.11 gears, to overdrive units.

Swapping Manual: ZF6 is the obvious candidate, but I have read the swap is not probably something I have the skills or tools to do. I have also read that the performance of the ZF6 is sub par. But it seems like it would give me my 3.5 gear that I am looking for.

PCS Controller: Looks cool for a way to have control besides using the tree shift. Maybe a compromise on not swapping in a manual.

4.11 Gears: I get pretty excited thinking about the low end torque etc. I go off road almost every week, and like I said, I hardly go over 75 mph. But once in a while I do. Right now, the truck turns about 2300- 2500 rpm at interstate cruising speed. Looking for 4.10s rpm in that range to compare? Also, how bad of a fuel economy hit would I take? What is the cruising rpm of 4.10's between 60 and 65 mph, or in general what is the rpm change?

Overdrive Unit: I have always been interested in more gears, but I read about someone who installed one behind a 7.3 and didn't have they great of results. To the point where he said it wasn't worth it.

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Ford 7.3L Power Stroke (1999-2003) :: New PCM Installed - Trans Code P0720

So just got a new pcm installed since i fried the last one anyway. I had a new trans installed almost two weeks ago factory 4r100 now i have a p0720 code. Id take it back to that dealer.

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Ford 7.3L Power Stroke (1999-2003) :: 6 Speed Trans - Stuck In 6th Gear (Overdrive)

I have a 1999 F250 4-wheel drive with a 6-speed tranny. The tranny is several old but has only around 100k on a rebuild. Three times recently it has stuck in 6th gear (overdrive) and I had to get really rough with the stick to get to come out. Afterwards the stick felt "thick" for a while and eventually everything seems to go back to normal. Not for sure but it may have started after pulling a heavy load, around 16k, which is not unusual for the truck. Other than the times it stuck and shortly after, the tranny seems perfect.

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Ford 7.3L Power Stroke (1999-2003) :: Zf-6 Trans - Slips Under Heavy Acceleration In 6th Gear?

Ok, my clutch has been giving me trouble for a little bit and I'm almost positive that I have a bent release fork. It also slips under heavy acceleration in 6th gear. I am planning on doing a clutch, compete with flywheel and release fork and a new rear main seal. My problem is, here within the last couple of days the trans would pop out of 4th gear if I was just coasting. It has been getting noisy over the last few weeks also. I'm no manual tyranny expert, but this is making me think I'm gonna need to have it rebuilt.

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Ford 7.3L Power Stroke (1999-2003) :: Code P0732 - Transmission Gear 2 Incorrect Ratio

Was doing some errands this morning and on the way home the transmission shifted a little strangely into 2nd. I had to let off the throttle for it to shift.

Fluid levels are correct and not burnt with no residue floating with a pinkish red color. Using Schaeffer's All-Trans Supreme.

I have read all of the threads related to the P0732 and the mechanical diode issue. Does the e99 4R100 have the mechanical diode? If not, what else could it be?

I also have the P0500 VSS sensor circuit fault which an old Ford mechanic stated could be related to a bad fuel sending unit which is definitely bad on this truck.

Am planning to go out and clean the sensor on the differential. Speedometer is working properly. I have also noticed what appeared to be a small slip when in reverse a couple of times that I initially attributed to tire spin. Is any of this related? Should I be prepared to rebuild/replace the transmission?

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Ford 6.0L Power Stroke Diesel :: 2003 Excursion - Trans Would Not Budge In Any Gear

After doing some hunting/wheeling with my son, got back to town and 2003 Excursion w/ ~145K miles would not budge in any gear. No codes with Scangage. After 30 minutes I finally thought to rev it up and it shifted hard into gear, and drove normal home. What do do now?

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Ford 7.3L Power Stroke (1999-2003) :: Trans Will Engage When RPMs Get Over 2K

Have to get rpm's over 2k before trans will engage, then in between shifts I either have to let off throttle or let engine rev over 2k to get trans to shift...

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Ford 7.3L Power Stroke (1999-2003) :: Trans Grinding Intermittently?

I'm getting a sound every now and then of what sounds like i'm running over rumble strips on the side of the highway. I'm guessing it's the trans grinding. Any thoughts?

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Ford 7.3L Power Stroke (1999-2003) :: Trans Temp Really High?

I notice my trans temp gets really hot fast. For instance just moving my trailer from front of my house to side yard makes temp go to 250. Without any load and driving a couple miles it does the same thing. It's been doing it since I installed the trans temp gauge just trying to figure out what's up.

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Ford 7.3L Power Stroke (1999-2003) :: Trans Not Locking In 1st Correctly

I bought this truck with 200000 miles and its been flawless, its now 900 short of 600000.. I use it to haul everyday.. nothing heavy mostly a car or truck and every once in a while a skid steer. I got 560000 out of my trans, i take it easy. lol

at 350k I installed a Jw valve body drilled pump, tripple disc converter and solenoid pack.. at 560k it went, i pulled it and brought to a guy i trust as much as you guys trust BDS.. Ive had what Ive called a vibration since day one, could be a shudder, could be a shimmy.. what ever.. I brought it back and he says nothing would do that from a trans, so I went through drive shaft, new t case ripped apart rear end and its still there and I have just been dealing with it.. about 2 months ago it started acting up in first. when I pull down to drive I get the normal bump and start to go, it feel like the truck slows, then another bump and it climbs normally with the shudder.

took it back and he said maybe a stuck valve in small VB, so I pulled it and went down there and it was fine, I reinstalled and still does same thing. I then put a pressure gauge on it and it swings as it should sits around 70 psi and will climb, only in first it will climb and fall back to 70 like a switch was flipped, and the rest of the gears bleed off slowly or normally.. He then said it could be the big valve body, so I swapped that one out with another and no real change, maybe its a bit more noticeable.

I am at a loss. Could this be loose feed bolts? Could the shudder that I can feel at most speeds be the 1 gear slipping a tiny bit all the time? I am told that first gear is always on.. this truck has been a dream until this trans issue..

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Ford 7.3L Power Stroke (1999-2003) :: Max Trans Temp And Its Duration?

I've searched, and gone back through my computer history and can't find it. I have seen a thread here which Mark contributed too which said what the max temps were and for how long etc. I know book is 230 and optimum is around 165 but there was some degree of play in that.

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Ford Super Duty (1999-2016) :: 2006 - Got Trans Code P0752 And P2700 With Rough Shifting?

My truck started acting up the other day with a flashing Tow/Haul light and CEL. The codes for the transmission were P0752 and P2700. I swapped out the SSPC-A solenoid unhooked the batteries for an hour and there was no change.

I hooked up a 100lb oil pressure gauge to the 1/8"npt outlet on the side of the tranny. At startup it immediately pegged the gauge....forever, lol. The gauge is toast now. Upon starting is has oil pressure visible in the see through line of the oil pressure gauge. But....if you tap the throttle in park for a second, the line looses pressure (by seeing the oil go back toward the transmission). Without pressure, when you put it in drive, it takes about 5 seconds at idle to build pressure and engage. If you give it the slightest throttle before engagement, it won't engage.

Also, as probably expected, the transmission hunts a bit with rough shifting.

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Ford 7.3L Power Stroke (1999-2003) :: Blown Trans From Torque Converter?

So my transmission drove perfectly fine I just wanted to put an upgraded torque converter in especially after driving a customers' truck with a low stall converter. I know their not like for racing or anything but it's a work Truck with some mods to the motor nothing crazy. So I went ahead and bought a low stall triple disk converter and I drove around the block fine and went to go on the freeway and got into fourth but lost it as I hit 75 (was not flooring by any means and had it in the stock tune) now it will not go past second gear. Once it did this the o/d off light started to flash and I decided to do a stall test.went to 1800 in a Second. Suppose to stall around 1200-1300.

2000 f250 7.3 powerstroke dp chip stage 1 camshaft and 180/100 injectors coming at some point but stock for now

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Ford 7.3L Power Stroke (1999-2003) :: OD Flashing When Driving After New Trans 4r100

Well stock trans went two weeks ago so warranty company had another stock one put it (4r100). Finally got the truck today and I noticed my overdrive was flashing. I have no issues though shifts fine speedo works Rpms are normal I checked fuse 19 under the dash that's fine so I'm lost

If I turn the key on I can use the button like normal but once I drive it just flashes. It works but flashes .

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Ford 7.3L Power Stroke (1999-2003) :: Trans Torque Converter Rattle

1999 7.3/4r100 4wd with the rattling torque converter.

I bought this truck 10-11 years ago to use as a tow rig for my landscaping company. It has been a great problem free truck, I have done brakes a few times, a water pump, ball joints but no issues with motor/drivetrain.

I don't know the history of the trans before I purchased. Ford didn't have history of it being replaced and even now it still has all the labeling on the case. I would have thought it would have been washed off in a rebuild. Again I don't know. When I bought the truck it shifted nice and crisp, having owned trucks before it made me think it had been rebuilt but this was my first and only 4r100. Other trucks are ZF6 manuals.

Anyway 10 years and 100,000 miles later it still shifts very crisp and fluid, has been changed a couple times, is nice and cherry red. I added a 6.0 cooler, temp gauge and filter. Never see the temp rise and haven't seen much in the filter.

About 25,000 miles ago the TC started to rattle, a known 99 problem. I figured surely the trans would go and I would do a rebuilt from Ford. It keeps going though so being a work truck I have kept running it.

A couple weeks ago the starter just spun and wouldn't engage. I pulled the inspection cover and noticed some missing teeth on flex plate. Got it to start my turning crank bolt a bit to good teeth and the starter caught. Now we are carrying a breaker bar and socket. It has happened a few more times so I need to replace flex plate.

Question is, since I need to pull trans to replace flexplate, should I replace TC (I would like to get rid of the noise)? Some people have said I will be replacing trans in a couple months if I mess with it. They say just spend $3000 on a rebuilt now with a converter. Not trying to be cheap but hate to just dump this trans that is still working great and has served me well.

I have replaced many transmission and done clutches in many trucks so I am familiar with the steps of removal and installation, just stuck on what I should do.

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Ford 7.3L Power Stroke (1999-2003) :: 2001 - Trans Shifts Hard Sometimes

2001 7.3 auto, 2wdr, 291,000, Transmission sometimes shifts hard from 1st-2nd, 2nd-3rd. Problem started after I found trans dip stick tube broken and loss of fluid. Anything I can do without going to a shop. I've replaced the Broken Tube.

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Ford 7.3L Power Stroke (1999-2003) :: Changing Trans Valve Body?

Iv heard a few things about changing the valve body. I tow a trailer so was wondering on pros and cons of changing this. And also what brands are recommended.

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Ford Super Duty (1999-2016) :: F250 - Trans Shifting Hard / OD Light Flashing / Code P0720

Just got the transmission rebuilt in my truck and other then shifting hard sometimes it has been doing great, Hooked it up to the goose neck this evening and everything was fine then went to back it up and pull it forward and after a short distance the od light was flashing and when i ran a check on it it was p0720? The transmission has less then 1000 miles on it?!?!? 1999 Ford F-250 7.3 Automatic....

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