Ford 7.3L Power Stroke (1999-2003) :: F250 4r100 - When Taking Off In 3rd Can Manual Select 2nd But Not 1st - Codes P0715 / P0717


Oct 24, 2015

5 months ago I brought a f250 7.3 2000 model the car i always wanted and to take a trip around australia but I am having problems with the 4r100 transmission that was rebuilt before i purchased the truck

The problem and checks. Truck taking of in 3rd can manual select 2nd but not 1st

Getting Codes P0715 , P0717 changed turbine speed sensor checked wiring to pcm all ok codes still coming up

Put truck on scanner and found TSS reading when manually in 2nd but not in park neutral or drive

Removed PTO cover to check gear turning that the TSS reads from with the truck up on stands the gear only turns in 2nd when in park neutral or drive it is stopped verifing what the scanner is seeing the scanner also see the gear changes but the transmission is not changing ...

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Ok I've got an 01 F250 sd 7.3 with 257k on it it just started talking longer to start than it should it will do it cold or hot even if I shut it off at the drive thru takes it like 10 sec or more to fire. My question is I thought about purchasing a autoenginuity to find the problem but not sure the best place to get and what model I should get.

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Ford 7.3L Power Stroke (1999-2003) :: 2002 F250 - Truck Lost Power Then Died - No Codes

I have a 2002 F250 Super Duty. Was driving it and it started to lose power and shut off. Then wouldn't start like out of fuel. No engine light no codes. Truck has 155k on it. So just because I replaced fuel pump. Truck runs but not right it's ruff no power kinda back fires in exhaust. I check wires and plugs under valve covers all seems ok. I ran truck and pulled each injector loose and engine would stumble. As in they are working. I replaced cps. Just because still the same. Then the truck started running right. But the truck runs but has knock but knock goes away and truck has full power. Yes oil is full and I change it regularly. The problem is off and on like electrical.

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Ford 7.3L Power Stroke (1999-2003) :: 2001 F250 - Won't Shift To 3rd Gear - No Codes?

i bought a f250, i rebuilt the 7.3 after installing it the transmission isn't shifting correctly. Reverse perfect, 1st and shifts to 2nd great. wont go into 3rd. i replaced the 2 sensors on the transmission, i replaces the sensor on the 3rd member. the speedometer works but not correctly, i can unplug the sensor on the front of transmission and it shifts into 3rd. but when i plug it back it doesn't. no codes. could it be the ecm?

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Ford 7.3L Power Stroke (1999-2003) :: 4r100 - Reverse Started To Go Away

Installed rebuilt transmission 1 month ago. Have noticed reverse has started to go away. Feels like it is slipping or tires are losing traction with a lot of vibration in the steering wheel.(tires are not slipping that's just the way it feels).. Does it worse when trans is up to temp. I suspect feed bolts but want opinions.(Mark K.) All forward gears seem fine with no issues. I have never been under the pan deep enough to access the feed bolts.

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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) :: 4R100 Transmission - Leak Towards The Back End

I have a 2000 Ford Excursion 4x4 7.3 with 230K miles, around 15,000 miles ago I replaced the transmission with a rebuilt 4R100, lately I have noticed a leak towards the back end where the transmission and the transfer case connects. Some of the bolts on the bottom of the pan have ATF on them, some others however do not. I have had to add a quart of ATF in the past couple of days in order for it to engage into drive when going from Park to Drive. I have to rev it before it actually kicks in. I'm hoping the leak is just being caused by a gasket either in the pan or connecting the trans to the transfer case..

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Ford 7.3L Power Stroke (1999-2003) :: 4R100 No Drive - All Gears Lost

Driving along today my trans started doing some weird stuff. It lost all gears. Forward and reverse. If I turned the truck off and let it sit a while it would go again for awhile then loose drive again. When I got home I checked fluid level and did KOEO o/d off and back on. I drove it around the block and it seemed ok, so I went on my way. After about 20 min I noticed the OD light flashing. I checked codes and It had P1754-ccs.

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Ford 7.3L Power Stroke (1999-2003) :: 2000 F250 - Codes P1247 And P1248 / Noise Sounding Like It Lost Air Compression For A Few Minutes

My pickup has 316,000 miles on it. It's a 2000 ford f250 7.3 powerstroke. I have always bragged how my truck can pull anything because it has alot of power. Yesterday when pulling a 28' travel trailer up an incline I noticed I didn't have much power and it steadily got worse. Now I'm at a crawl when I hear a noise sounding like it lost air compression for a few minutes then the noise stopped. I stopped and looked to make sure everything under the hood was still attached and everything seemed fine.

I got back in and continued very slowly a few more miles home. Gauge were all good, never got hot. I put a scanner on it and it threw two codes. P1247 and P1248. I haven't noticed any unusual smoke. This is my second ford I've owned and know that when weather gets cold you may have to plug it in. But this truck it doesn't matter if it's 100 outside it will not start without plugging in for at least 1 hour. I've replaced all glow plugs hasn't worked. So I am assuming this break down now has something to do with it. I really am starting to not like fords!

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Ford 7.3L Power Stroke (1999-2003) :: 4r100 - Overdrive Light Start Blinking

Took a 2 hour trip got of the interstate came to a stop light and the OD light starting blinking cut the truck off at the light fired it back up shifted in every gear like normal drove a little ways stopped at a light and OD started blinking again cut truck off back on light. Went away shifted great threw all the gears.

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Ford 7.3L Power Stroke (1999-2003) :: 2001 F350 - 4r100 Transmission - No Reverse

my parents have a f350 which now has no reverse. it has a reman sticker on it, 230k on the truck but no idea on mileage on the tranny. shifts 1st through 4th fine, no slip. Tc lockup works just fine. No codes found with my solus scanner. When shifted in reverse it will move back about 2 ft if revved above 2k and then nothing. Am I looking a trans rebuild or is there something I can check and repair with in it the truck?

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Ford 7.3L Power Stroke (1999-2003) :: 4R100 Trans Won't Go Into 4th / OD Light Flashing And Occasionally Overheats

I have an early 1999 Ford F350 4x4 7.3. I purchased it used about a year ago. The trans was replaced with an ATS 4R100 and a billet torque converter. I have the paperwork for it to confirm it along with the mileage when it was installed. It currently has about 35k on the new trans.

Several months ago the trans heated up to about 200 degrees on my trans temp gauge that was already installed when I purchased it. Not a huge deal and after pulled over and high idling it off I went and no problems.

About a month ago I was towing my fifth wheel when I noticed the temp rising on a level grade. I also noticed the OD light flashing. I made it home and when I went to drive it the next day light was not flashing and it shifted and drove like normal without the trailer.

I towed the trailer again and same thing, OD light flashing and started heating up. I changed all the fluid and flushed it based on the trans flush procedure I got in this forum and replaced with an OEM trans filter. Towed the next day and everything was good. Temp was good and no OD light flashing but I lost 4th gear. All other gears shifted fine, no slipping, just won't go into 4th.

On my way back home the OD light started flashing again and instantly the heat started rising on the trans again. I was finally able to get it into 4th if I let off a little, but as soon as the OD light started flashing I lost it again.

I have a friend of a friend who works for Ford who offered to come over to hook his scanner up. When he hooked it up there was no stored codes from the OD light which we both thought was odd. Took it for a test drive and the OD light started flashing so we could get some readings. He said it showed an error shifting from 1 to 2 and another error when shifting from 3 to 4. I unfortunately forgot to ask him for the specific codes. He tried to read the torque converter info but said my truck was to old and the PID was not supported to read that info.

He said it appeared it was mechanical but without some type of break out box where he can physically shift the gears he couldn't say for sure if it was mechanical or electrical. He did not seem to interested in doing that test for me as he rebuilds trans on the side and said he could rebuild it for me.

It seems my overheating takes place when the OD light starts flashing. It still drives fine and shifts smooth with no issues with or without the OD light flashing. 4th gear usually doesn't work but on a rare occasion it will go into 4th fine which makes me believe it may be electrical.

I am new to diesels but have learned a lot about my 7.3 lately. I recently installed injectors, up pipes, hutch mod, and several other little things so I can get things done myself but am just a DIY'er who can follow good directions. I know very little to nothing about transmissions though.

While working on another issue I did notice there is a large wiring harness that connects up on the driver side of the trans. I unplugged it and was checking the wires and after removing the dirt and crud on it you could see the outside wire sheathing had deteriorated exposing the copper. I bought some liquid electrical tape and sealed everything up. I did look for a replacement wire harness at the time and the one I ordered was very similar but the plug was different so that is why I used the liquid tape at the time. I did not seem to have a problem at the time after fixing it but wanted to mention it here in case that may be an issue.

I also thought swapping out the solenoid pack may fix it. I did not want to drop the trans and send it for a rebuild if I did not need to. I know there are some other sensors associated with the trans like the TSS I think but don't know if they are even related to my issue.

I tried getting the codes from the guy but he does not have them and I can't get him back out. I have an OBDlink device connected to Torque on my phone but I couldn't get it to read trans codes. Could be user error.

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Ford 7.3L Power Stroke (1999-2003) :: 4r100 Transmission - Code P0750 Shift A Malfunction

I bought it 4 years ago with 205K, swapped trans fluid.. 10k miles later (I don't drive it a lot ). I am throwing the code P0750 Shift A malfunction.. i figured id swap the solenoid pack since I am pretty handy and it was affordable.. but it didn't seem to do the trick.. it drove around the block good for 5 minutes before it started shifting weird and throwing a code again.. almost seems to be slipping... I still have to check fluid level again and scan the code again but any suggestions? I have an apt to go to the tranny shop this week and would like to avoid the big bucks if possible.

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Ford 7.3L Power Stroke (1999-2003) :: 4R100 - Overdrive Light Flashes And Shifting Really Hard

I have a 2001 3/4 pickup. Sometimes the over drive light flashes. When it flashes it shifts really hard and sometimes it won't shift into 4th until I mash the overdrive button. Sometimes the light doesn't flash at all and it doesn't have any trouble shifting at all. Is it a solenoid? Or wiring issues?

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Ford 7.3L Power Stroke (1999-2003) :: 4R100 Trans Shifts Hard When In Any Position Other Than Stock

I just bought a 2002 F250 7.3 4x4 auto. It had a TS 6 position tuner installed. In stock mode, I got about 11 mpg. I wasn't too impressed. I found that when I left it in 75hp mode, my mileage went up to 21. I drive easy and try to keep shifts at or below 2,000 rpm. The problem is that, when in any position other than stock, my transmission shifts HARD.

My question is: what's going on here? Does the TS change the transmission shifts? Or is the extra bump in power enough to stress the tranny? Based on the factory gauge, the transmission is not running hot. The fluid is nice and pink with no odors or metal shavings. I'd hate to prematurely kill my transmission, but nearly doubling my fuel mileage is hard to pass up.

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Ford 7.3L Power Stroke (1999-2003) :: 4r100 Transmission - How To Bypass Neutral Safety Switch

I have the 4r100 transmission how do I bypass the safety switch? Also what are your thoughts on starting the engine with the transmission out? I know to bolt the spacer plate to the engine.

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Ford 7.3L Power Stroke (1999-2003) :: 4R100 Transmission Will Only Shift To 2nd Gear When Throttle Is Feathered At 2500 RPM

Problems with my 2001 F250 4r100 transmission. Transmission will only shift to 2nd gear when throttle is feathered at @2500 rpm. All other gears shift perfectly. This problem is consistent.

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Ford 7.3L Power Stroke (1999-2003) :: 4r100 Transmission Loose After Warm Up Especially At 4th Shift Overdrive And Passing Gear

I have a 4r100 on in a 99 7.3 4x4. The shifting problem I have appears to be intermittant. it seems loose after warm up especially at the 4th shift overdrive and passing gear. possibly due to low presures ? sometimes (lately more often than not) hunts back and forth between 4th and o.d when passing or hill climbing. Under normal driving it shifts somewhat firm with 4th being an exeption.I have changed my crank position sensor filters and fluids which had turned dark and improved slightly. When I pulled the pan and replaced the filter the pan was spotless. No residue or signs of plates or debris. There is about 100,000 miles on the tranny and 350,000 on the truck. Questions: Is there a tcm for this transmission and if so could it cause these problems? I'm considering a purchase of an unlocked 1705 superchip to change the shifting but unsure if this will work for my issues...

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Ford 7.3L Power Stroke (1999-2003) :: Vibration Noise When Taking Off With A Load On Drive Line

My rearmost drive shaft u-joint is bad and has slop. I've been having vibration for about 7-8 months, but just started hearing a noise within the past week, especially when taking off with a load on the drive line (uphill or heavy acceleration). The vibration has not gotten worse, just that the noise has just begun to show itself.

I have one u-joint which is OE and has 275K miles on it, and it seems to be OK at the moment. The other two (including the rearmost unit) both have about 100K miles, as does the center support bearing.

Just because I don't want to worry about anything, I'm going to replace all three u-joints with Moog Super Strength units, and will also replace the Center Bearing with a new Spicer unit... just because I can and don't want to be pecked to death with multiple failures in the same drive line. I ordered the Moog joints because the only Spicer joints I could find were for the 4wd configuration.

That's the context... here's my question... The parts are on order and won't get here for several days. I've been driving the truck like it is at about 1500 miles monthly. Do I continue to drive the truck for another week before getting the joints and bearing installed? I know it's a guess... just looking for more perspective.

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Ford 7.3L Power Stroke (1999-2003) :: 2001 F350 - Hard To Start / Taking Lot Of Cranking

I have a 2001 F-350 7.3L Powerstroke. 48,000 miles. I've been having trouble with cold starts. So far it has always started but is taking a lot of cranking, but it hasn't gotten too cold yet so I'm worried about when it does. I ohmed out the the glow plugs and am getting close to 0 resistance. The GPR has 12.5 volts on the hot side and when the relay is closed 10.5 on the other side. Is that difference in voltage in the GPR enough to screw up the Glow Plugs heating up? If I plug it in at night it starts right up. I'm worried about when I am at work for 16 hours and don't have a place to plug it in this winter. BTW this is my first winter with the truck.

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Ford 7.3L Power Stroke (1999-2003) :: Knocking Noise Most Noticeably At Hard Acceleration Or Taking Off In General

I have begun to notice a "Knock" or "rattle" in the engine. I know diesels have a tendency to sound like that just from running but that sound is more of a "cackle" if you ask me.

I can hear the "knock" most noticeably at hard acceleration or taking off in general. It can also be heard during idle and every so faintly at deceleration with the torque converter locked so it makes me thing its mechanical due to the nature of the way the sound is audible.

I believe the sound is coming from the passenger side bank as that is where I can hear it the best with my head under the hood. I have a code reader and checked, I have no visible codes other than it telling me about secondary fuel circuit high which I suspect was from showing off with my friends.

I did a cylinder balance test and again got 3 (PO269) and 8(PO284) which I have been told are very common.

I checked my ICP readings and it was 500~ and 11%

Pulse width for injectors was 2.50~

I did a KOER test and received no codes

Glow Plugs showed okay

KOEO (PO605)- Internal Control Module Read Only Memory error.

Exhaust Absolute Back Pressure was 16.2 at Idle with MBRP 4" Turbo back.

Also, I have noticed a drop of about 5-10 degrees in my oil temp and about 100 degrees drop in my EGT's although it has been pretty cold here recently (32 degree oil temp when I started her at 2 in the afternoon)..

I think it might be a bad piston skirt? I am guessing that from my experience with motorcycle engines but these are a totally different beast and that is why I am here...

I have 634,000 Miles and from what I have been told the engine has never been broken into so I would expect something like this myself. I am mostly looking for a place to start. Should I pull the oil pan and look for debris? (Oil was clean last time I changed it less than 2000 miles ago).

Should I pull the passenger bank apart and look inside? Is there a chance I am just hearing the noise due to the additive wearing off and me being used to the quieter engine?

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