Ford 7.3L Power Stroke (1999-2003) :: Transmission Slipping When Put It In Drive
Aug 10, 2016
My tranny is acting odd. I put in drive and seems to slip a lot in 1st, barely even move at some times. If I put it in 1st with the shifter it goes in and grabs then I can shift up to 2nd or drive and there aren't problems. It drives normally when not from dead stop.
Transmission has 50k miles on it since replacement. Fluid level is normal. I don't tow and drive it particularly hard. I will have to go back and look at miles since last fluid change. I should be right around 30k miles since last change.
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I have a 2000 Ford F450 7.3 4x4 dully with a PTO driven winch 108,000 miles. The truck has develop a transmission slip.
I have changed the transmission fluid twice and it drives better but it slips badly. I can drive it up to highway speeds but it has problems getting from 0 to 10 MPH. The transmission runs hotter then normal but nothing major maybe around 205 degrees
Do I need a complete rebuild? This is a beater truck that I use to tow mainly. It is not worth a major investment. I need the PTO gear and 4x4.
I have several 2000 through 2003 7.3 E350 and E450 short school buses. Does the transmission from these has a PTO gear? I am thinking of pulling the transmission from one of them and swapping it.
It looks like the transfer case just bolts to the back of the transmission; I believe that a 2wd van 7.3 transmission will work with the 2000 F450 setup.
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My son bought a 1999 F250 Diesel about a year ago. The seller gave him receipts showing that the 4R100 had been rebuilt and a new T.C. installed 25k miles before the sale. The problem is that it is slipping. He says it started with 2nd gear, now it will hardly move in 1st.
Fluid smells a little burnt. We pulled the transmission pan expecting to find lots of friction material. It does not have as much as I thought it would, not as much as I have found in the the pans of the few other auto trans I have seen with worn out frictions. Below are pics of the inside of the pan.
Or, is it the T.C. that is slipping. I have never had a vehicle with a bad T.C. How do you diagnose it? I have experience rebuilding (GM) Turbo 400's and 4L60's. Never had a ford AT apart.
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I have a 2002 7.3 e350 quigley 4x4 Sportsmobile with 312k miles. 2nd owner. Bought it with 295k miles 2 years ago. From what I gathered the tranny is original.
After reversing at a downhill angle, stopping, and shifting the lever to Drive, the tranny doesn't seem to put Drive in gear and depending on the angle of the slope, the van will roll back or barely creeps forward even with throttle. Put it in 1st gear, and the tranny engages that in gear and drives forward no issues, then I can shift to 2nd, then Drive and the tranny shifts fine after that.
No weird tranny noises or clunking. Noticed this issue about a month ago or about a couple thousand miles ago. Did tranny service (drain, filter, fill) at the ford dealership at 305k months ago.
I can only replicate this issue when Reversing on a down slope. On a flat surface van Reverses and engages Drive like normal.
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I have a problem with my transmission slipping. It seems to happen most often when I have shifted from park into drive and am going uphill. I don't really notice a problem with it when I am on flats or even at red lights. It can drift backwards for 10-15 feet before "catching."
I don't feel any problem when I am going faster or in higher gears. 1999 Ford Explorer SOHC 6 Cyl 4.0...
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I spoke with a few people here before about my 4r100.. it threw a code a month ago for P0750.. i replaced solenoid and it continued to do it even after clearing codes numerous times.. then all of a sudden it was perfectly fine for over a week, no codes, i ran a few brick hauls with it and ran it for over an hour straight.. i went to fl and upon return i took her for a drive and wouldnt you know, the code has returned.. i did hammer down a little but not from a dig, i just got on it a little playing with a neighbor and his truck and all of a sudden it did its thing slipping and not up shifting then the O/D started flashing again... i cant understand why the code would come back all of a sudden, there has to be a wiring problem correct?
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Well, today i had my first bout with tranny issues of any kind either before or after my BTS installation. After sitting all day at work, heading home, the shift i guess from 2-3 at about 40-50 mph shifted really hard, BANG. Heard a whirring/whining sound, lots of slipping with the TC. After a lil ways it was like it was in neutral.
Coasted to stop. Went thru the gears from park, rev, and drive about 3 times, got movement each time. Got out, looked for obvious, no fluids or linkages apparent. Drove thru town about 25-30 mph. Felt like it was "hunting" and shifted like a manual grinding gears. Got on highway and no overdrive and im thinking no high gear either.
Push button on shifter light changes, but no change in operation. Running 60 and rpms are turning 2700ish. Still "hunting". But while hunting it isn't wide rpm swings, just a small amount, not wide enough for a gear shift. I am thinking that its torque converter constantly engaging and disengaging.
While letting out of gas it coasts down with TC still locked up all the way down to about 1100 rpm before unlocking. Then I start seeing the OD light flashing. Ok, classic wire chafe in steering column. But it doesn't always flash, only sometimes. And fuses are good. Temps never got above 150 during this 50 mile drive.
So i get home (and its frigging dark already, i hate that this time of year) and I log on and start reading up on this again to refresh my memory. I had called Brian over at BTS when it happened as i was going down the road, he was busy at time. He called me after i got home and i explained and he talked me thru some things. Wanted me to pull the codes and get back with him tomorrow. I did that and the screen shot is below. I will talk more with Brian tomorrow.
But during some of my reading i think i came across some others that had similar trans codes and the issue ended up being the alternator. Alternator ? For trans issues? Is that right? I guess stranger things have happened. I have a high output alt waiting to be installed but haven't yet. I guess we shall see. Brian thinks it something telling the TC and trans to act that way. Doesn't think anything mechanical, yet, leaning towards electrical.
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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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What is the difference in drive/ fan belts with Cold Weather package and W/O cold weather package? As I have been trying to figure this out at the Irish part part it says for a single alt ....
Cold weather package the Outside Circumference (In): 121.900 and
Non cold weather Outside Circumference (In): 122.735 Inch
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So I went from a 3 inch to a 2 inch leveling kit. After tightening everything up the sway bar was a hair off. I pulled it out of the garage and got it lined up. Fast foreward the next day and went on a 200 mile trip hauling an empty goosneck and noticed it one time. The day following the the truck has went into this horrible sway through the tires back and forth that makes it undrivable. Looking at tie rod ends the one at the pitman arm is shot. I order the whole front steering kit from xrf and I'm going to replace. I know I also have some play in the box but I have for awhile. So what else would there be to look at? I need to get this fixed. I will update after the steering is put back together.
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Tranny rebuilt, truck in sig, and beefed up 2 1/2 years and 30K miles ago. Recently started going into D after 10 to 20 seconds after putting it in gear, cold or hot. Very frustrating, especially when trying to maneuver a trailer.
Transmission builder has been running his shop for 20+ years, all makes and models, not Ford specific. I choose him because he runs a local business, has a good reputation, and happens to live less then 1/4 mile from me.
I have searched the forums, and read where Mark says this is loose valve body bolts, or forward drum going out. Builder can't grasp where it would be drum seal if it doesn't do it all the time, which it doesn't. He said it sounds more like something electrical, but there are no codes stored on pcm.
Builder also said he would pull tranny to check drum. Does this sound like I'm moving in the right direction? Or can it be something else?
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I guess it would be classified as very intermittent but in the past year I have had 3 separate times when my truck has after a short drive suddenly had zero boost..
Pull over and turn it off for 30 sec or so and all is fine. Cycle the ignition faster than that and issue persisted. It has only happened in colder temps. In all the reading I have done on FTE I've not come across anything similar.
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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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I bought a 99 7.3 been in the trees for a few years pulled it home and now trying to get it running. Did a service new filters and oil fuel too. I can get it to start and will run but runs very rough and if you put it in drive cant pull its own self. I don't have a check eng light on. And found out my scanner is a pos lol. it will hooked up and then try to pull codes and loses it connection. But that's the scanner will not work on my other 7.3 as well.
I am making high pressure oil checked off the rail with gauge and it will build up to 2000 psi when I rev it. but missing like crazy. I swaped the pcm and idm out of my running 7.3 and it didn't change a thing. I have checked the pass though and they are fine. pulled drivers side valve cover off and no oil leaks when running and rockers are fine. new ipr valve as well too. I know I need to get a scanner to talk to this thing better.
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I got a 2000 f350 7.3. Cranks up fine runs fine put in reverse and can back up fine put it in drive and it bogs down and dies. What is causing that.
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I have a 2000 Excursion diesel 7.3. I drove it for an hour yesterday and it drove great. When I arrived home I left the truck running and put it in park. Checked the mailbox and jumped back in the truck and put it in drive and it would not move. Tried FWD and reverse. Moved a little in reverse.
I turned the truck off then cranked it back up put it in drive and it drove fine..... Took it for a test drive and seems fine.
Did the same thing today. Went to drop my kids off and I put it in park and left the engine running. Put it back into drive and it would not move.
Turned the vehicle off and back on. Put it in drive and it drove off fine.
Fluid is full, red and no burnt smell. Wondering if this is converter or electrical and how long I can drive it like this.
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Hauled my last 2 cord of wood for the season, and I now have a pretty good 3-5 slip in and an intermittent bang/clunk when its shifting. So I've put this off for a long while now, and I want to fix it. I've done my research, and I don't really feel like I'm any further ahead than before I did my research.
I'm looking for recommendation's on what transmission and or kit is the best for my truck. I pull my 5er 10-15 times a year mostly up and down the east coast. We are looking to get a new 5er with a bunk house, my goal is to stay in the same weight neighborhood, I run 13-13,500 now depending on where we are going. The goal is to be able to get maybe another 3-5 years of use from the truck, maybe more, and then upgrade to a newer truck. So let me hear what you all recommend as I'm going crazy and probably over researching what I'm gonna do...as usual.
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I have 1996 Ford F-250 that I just put a axle in that came out of a 2003 Ford F-350 this week. I test drove it today and my locking hub fell out of the driver side. I looked for it but couldn't find it. I drove home and the ring fell off of the passenger side from driving it back but the hub hadn't fallen out yet. what can I do to keep the hubs from falling out
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What Spicer Part #s for the rear u-joints would be? I'm not nailing down the right one. I keep finding numerous ones, 1410, 1350, 5-160....
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Ok, the swap is all done and I have an engine in the truck that has compression in more than (7) cylinders.
2002, 7.3, 4wd - ~120k miles on trans. Fresh fluid (Mercon V).
Put the gear selector in reverse and it goes right into gear with the normal tug and functions as it should. Put it in low gear and it also appears to work fine. But, when selecting '2' or 'drive' it feels almost like its engaging 2 gears at once?? There is limited forward motion and it feels like the brakes are on. I have not driven further than the driveway yet, but I have a long driveway...
The OD light does not come on. I am not getting any codes from AE, but I really don't know how to use it for transmission stuff (I've been using a different scan tool that I no longer have).
We have not put the bed on the truck, so no tail lights - but 3rd brake light has new bulbs and was working (didn't check this AM though... )
I have a couple other codes, CEL, 'check gauges' and no tach. Gonna start another thread for those issues, I'll put a link here in case its related.
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I have a 2002 f350 7.3. It was running fine 2 days ago. After I put some diesel in it my water in fuel light came on. I drained the water out and took all the fuel out and put fresh diesel in it. It starts up fine and idles okay but when I try to drive it it looses all power and acts like it's starving for fuel and almost dies. It was smoking white smoke for a little bit even after I took all the water out but now it's black. What it could be.
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