Ford 7.3L Power Stroke (1999-2003) :: Tranny Slipping And Not Up Shifting Then O/D Started Flashing
Jun 26, 2017
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?
View 9 Replies
Advertisement
2006 E-350 Dually Ambulance Chassis with the 6.0... Approx 125000 miles.
Recently, the truck started an issue. its an every once in awhile thing but has been doing it more recently. The OD light will start flashing and the vehicle will start to have clunking in the tranny and start shifting rough. ABS kicks in making it hard to stop. Once you turn the truck off and back on, Its fine until it does it again. Im connecting to a scanner tomorrow to see if i get any codes.
View 14 Replies
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.
View 2 Replies
I have a 02 f250 4x4 7.3l.... I drove it all weekend and no problems. It sat till yesterday I got in it to go to church. It started up and had a little miss was around 60 f. Then the od light started flashing. Not in any code just constant flash. I was parked down in my drive way. It idled fine but acted like it wouldn't take fuel. So looked around and found the hose on the map sensor was broke.
So today I fixed the hose. Checked the oil level and battery connections. Still running weird and flashing od light. I got under the hood and wiggled plugs I unplugged the ice. It revved up then back down and started running smoothly. Got in it and it backed out of the drive way. It ran and drove fine. What I need to know is why??? The ice is a new one from Ford.
View 11 Replies
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...
View 1 Replies
I bought this truck with a stock automatic transmission and 260k miles back in October expecting the transmission to be the first thing to go. Recently I had a transmission code, OD OFF light flashing, for the bad speed sensor which i got replaced. Then the OD OFF light started flashing after some hard driving when I would put into neutral or park so I took it back to the mechanic, Hanahan Truck and Auto in Sc. They looked into it and there wasn't any different code in the system but they noticed when you lay into it driving it slips some between 2nd and 3rd gears so that could cause the computer to put in a code.
They said usually a rebuild runs from $2k-2.5k and they also recommended a Jasper reman for roughly $2.8k which comes with a 100k mile 3yr warranty. So I figure replacing the transmission is probably the way to go. Any recommendations for a replacement. I've heard ATS and Sun Coast are decent options that I could build one. I'm looking to stay close to $3k. My truck is a 2000 F250 lariat 4x4 with 268k miles. I'm installing an S&B intake, 4" MBRP exhaust, and DP-Tuner's F6 chip when I get the transmission work done.
View 11 Replies
I have an '03 w/ the 7.3L. Today the tranny stopped shifting up out of 2nd. And the O/D light flashes. There are no other MIL lights on. I have do some searching here and some say the VSS (Variable Speed Sensor) is bad, some say there is a connector on the passenger side that needs cleaning, and some say there is a solenoid just inside of the tranny bottom that needs replacing. So, what shall I do?
View 4 Replies
Okay so I have a 2003 Toyota Camry with 358, 000 miles. I replaced the transmission in 2010 with a gently used one that only had 100, 000 in it. Out had been running great until today when it started slipping in and out of overdrive. I had to turn the o/d off just to drive home and not get it over fifty. Now I don't know if I need to change the filter and fluid or just take it to a mechanic. I read on another site not to change the fluid and filter at such high mileage b/c the clutch and guys might rely on the friction of the gunk in the fluid and that new smooth fluid might keep it from running right.
View 4 Replies
I have a 97 f150 (built 96 as 97 model), 4.2l 4x4, auto tranny. Here's the problem, when I turn my key forward to run position my starter kicks on and starts the truck, and stays engaged. I have a constant 14v at the signal wire on the starter relay (yellow red stripe). Also tranny started to slip, od light flashing. I replaced ignition lock cylinder, ignition/ starter switch, starter relay, starter, and today transmission range sensor (neutral safety switch 8 pin), same problem. Cel code that I had 2 days ago was P0707 tr sensor low input.
View 8 Replies
Im having an issue with my 2000 f250 7.3 diesel. 4x4. The od light is flashing and the tranny is kind of jerky when it shifts. Also my truck won't go into 4 low. (I have shift on the fly) and every time I put it in park my truck revs up to 2000 rpm for a few seconds. I do have a ts 6 pos. Chip with can tunes on it. And I have already replaced the IPR. It does it even in stock setting.
View 1 Replies
Took my first camping with 2012 King Ranch F350 and 37 feet Challenger 12k fifth wheel trailer over the weekend.
I noticed there is lot of transmission slips in first gear. Once it enters 2nd gear, no more slips.
My previous Chev 2008 2500HD diesel didn't slip much with same trailer.
Is this normal for this F350? My rear ratio is 3.55. No slips without hauling.
Maybe I need to ask dealer to check 1st gear towing?
View 14 Replies
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?
View 6 Replies
'00 PSD w/ 291k on the clock. Starts easily, runs good, only complaint is (what I consider to be) the soft shift of the tranny. Years ago, when I bought it, it came with a Super Chips Tuner. I've never max'd it out, just usually run on the performance tow. Is there any way to clean up the shifts and make them a bit quicker with less slip. When it's time to shift, dammit, I want it to "SHIFT", not slide into gear. I don't expect it to hit the gears like a manual valve bodied drag car tranny. But, there should be something to fix this without spending a bunch of $$$..
View 4 Replies
So last year I pulled the motor and put a new pan on. Since then the oil has leaked from the rear lobe at the back of the pan. No oil leaks up top of engine. So I pulled the tranny and am going to put in a rear main. I also see a plate that bolts on the back of the motor and the bottom glues to the pan. I am concerned I did not glue the pan well enough in the lobe as only about 1.5 inches of the lobe has a small amount of grey rtv sticking out. How do I remove the aluminum mount on back of motor that the tranny bolts to? What seals the plate? Oring? Gasket?
View 2 Replies
What's too big? I just put 33s on my super duty, is it "too much" for the transmission?
View 7 Replies
Heard a 2011 F250 gaser while driving in the morning just falls flat on its face, almost like its starving for fuel as well as it feels like the tranny is slipping too. What this could be? I am not sure if its electrical or what.
View 14 Replies
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.
View 11 Replies
Have a 2003 F350 srw 4x4, 107,000 miles on it. Driving it last night tow/haul light started flashing, hooked up AE got a P0730 Incorrect gear ratio. Truck seem to do ok, cut it off went back out a little while later and the tow/haul didn't flash.... Only issues I've had is when shifting from P to R, it takes a second or two longer than it should and shifts hard when it does but it doesn't do it every time.
View 1 Replies
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.
View 2 Replies
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.
View 14 Replies
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.
View 3 Replies
