Ford Transmission :: 2002 - OD Light Started Flashing When Pulling A Trailer On Highway - Codes P0705 And P0783
Jul 18, 2017
2002 7.3 4R100 ... The truck started flashing the O/D light pulling a 9K lb trailer on the highway.
The transmission codes read were P0705 (Range Selector) and P0873 (bad 3-4 shift - RPMs did not drop).
On the highway, the TCC seemed to lock up fine in 4th (OD button was set to leave O/D ON). When the truck would downshift (not often) then it would sometimes would rev high when it downshifted. It was like 3rd was slipping or it was downshifting into 2nd instead of 3rd. I think it was doing a 4-2 downshift but not 100% sure.
What confuses me is that if it is doing a 4-2 downshift then it would have to change state of both valve body solenoids. Is it possible that it was doing a 4-3 shift but solenoid was sort of sticking? Trans fluid looks fine.
I have read other posts where people had same problem (titled 3rd gear slipping), but they never seemed to resolve the problem in the thread. How likely is it that the solenoid is the problem? It seems to drive fine in 3rd when the O/D OFF button is pressed and O/D is not allowed.
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To start I was driving to work tonight and noticed the o/d "off" light flashing. it shifted hard one time then felt normal the rest of the way to work. At red lights the o/d light world turn off and about 3 minutes later it would flash again. When I got to work, I checked my code reader which gave me the p0705. I have searched around the net for about an hour and one thing i am seeing is that the fluid is "hot" or that there isn't enough. i have checked it and it looks slightly low like right above the add indication.
The only sound I here from under the truck is a rattle when in drive and at idle, but once I give it some gas it goes away. On they way home that night the o/d light was still flashing but it drove fine just at higher rpm, it down shifted hard one time but there were no other issues. I checked the fuses and they are all good.
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My truck makes a horrific screeching sound when it's loaded or pulling a small trailer (2000lbs) up hill. I discovered last night while I had it in drive, if I hold the brake and give it a little gas (like if you were trying to do a burnout) it will make the screeching noise as well. It won't break the rear wheels loose either, which makes me think it's down on power or the transmission is slipping.
My first thought is the transmission, but some searches on this forum describe U-joints or the carrier bearing as possibilities. The previous owner told me he replaced a U-joint just before I bought it, so I'm not ruling that out at all....
My truck specs: 1995 351 E40D 4x4 (manual transfer case & hubs), extended cab eddie bauer. 158k.
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I have a 99 Mountaineer AWD 5.0 (143K) and having some issues with it. O/D light is flashing once in awhile so decided to check the codes.
- P07401 (Torque converter)
- P1728 (Transmission slip)
The truck shift fine and no having really issues when driving even if there is a weird noise around 70mph.
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working on a 2000 F-150 (5.4L & 4R70W). the truck was towed to me with the complaint it would not go forward.
I found 6 transmission trouble codes set. I cleared the codes and was able to drive the truck for about 30 miles. It shifted perfectly and had all 4 forward gears, codes did not come back. I parked the truck to check the fluid level (it was full) waited about 15 mins and went to move the truck, As soon as I turned the key and started the engine the CEL came on and the OD light started flashing, the transmission would engage in forward gears but would just chatter when you tried to accelerate.
I checked the codes and found P0743, P0750, P0755, P1747 and P1760 set. I tried clearing the codes again several times and come back instantly when the key is turned on.
I doubt all the electrical solenoids in the transmission have failed at the same time. I suspect the internal connector and/or harness maybe faulty. what is the best course of diagnosis on this? where so I start?
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I test drove my truck yesterday for the first time with the newly rebuilt transmission. I was gentle with the right foot and all seemed well. Once out on the main road it shifted by itself into overdrive for the first time and immediately the O/D light started flashing. I drove it home and shut her off. I test drove it 2 more times leaving overdrive off, no issues. With a snap-on scanner hooked up I let it go into overdrive and O/D light started flashing again, not immediately maybe 5 seconds after shifting into O/D.
Codes are:
p1316 IDM codes detected
P0717 Turbine speed sensor circuit fault
P0715 Turbine speed sensor circuit fault
P0500 VSS fault
10 minutes ago was my last test, O/D flashes only after it has shifted into overdrive. I checked the transmission wire harness and all connections are tight, trans oil level is good & trans temp never went above 150. Could this be a faulty VSS?
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The brake lights on my '02 F150 have started flashing spontaneously ie - with no one in truck. This lasts for a few minutes, then stops, but can start again a few minutes later. The fear of course is that someday lights could come on and stay on, resulting in dead battery.
I do have a trailer brake controller that has been on truck ten years. Read something on internet that brake pedal switch might be going bad (??). Any one else observed this strange behavior?
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One day I was driving my truck 96 f150 4x4 Eddie Bauer edition and the over drive light started flashing and the truck got jerky going up hills. I got home and hooked my code reader up and (p0708) it said transmission range sensor. I replaced that the next day and drove it around town for about 30 minutes and parked it all seemed to good. But the very next day I started down the road and the transmission was slipping very bad after I turned around after a few hundred feet I barley made it back to my house. I checked my transmission fluid it's full and doesn't smell burnt or anything, I double checked the alignment on the neutral safety switch I just installed and it still in line. So I'm thinking my transmission is going out...
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I am the second owner of a 97 Cherokee 4.0 2wd. My overdrive works now and then. my check engine light is on. I had it scanned it throws 2 codes. p0700 and p0705. It has 147k and we already replaced the entire cooling system including flushing the engine and system thoroughly . Now it has been sitting for nearly 2yrs. just not sure what direction to go.
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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.
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Had a front seal leak on my 2000 F250 V10 with 122000 miles. Since I've towed for years and the tranny had to be pulled I opted to just rebuild the whole tranny. I had problems from the beginning where it wouldn't shift into third and when I took my foot off the gas it would just go out of gear completely and just rev. After I stopped and started over, it would shift fine for the rest of the day.
Finally the O/D stem light started flashing and the mechanic did something to fix it. Since then it has shifted fine but when it went into overdrive the rpm would bump up and kind of slide into overdrive. Left the truck with the mechanic again for two weeks and it's better, sometimes revs and slides into overdrive not every time though.
My problem, besides the overdrive shifting, is it now takes forever to shift in to 4th gear. I have to take my foot off the gas to make it shift into 4th and overdrive won't kick in until 45 MPH. My gas mileage, while bad enough before all this, has now dropped another 2 mpg to around 7.5 to 8. I was thinking about taking it to a Ford dealer for some kind of analysis.
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My 2002 mustang with 97k miles just had what has been described to me as a severely overheated transmission. The O/D OFF light was flashing and I noticed some faint smoke and a terrible odor from the burning transmission fluid. I was told by a nearby transmission specialist that it would cost $2500 to rebuild the transmission and put in an external cooling device (which he said was necessary).
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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.
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I have a '02 F350 just over 114k miles, tow light is flashing and just had P1876 code come up. 4h and 4l engage and disengage with out a problem. Code reads 2wd solenoid circuit failure. Where is this solenoid is located?
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Having an issue with my 2002 GP GT. I started it, but then it died after a couple of seconds while the "Security" light was flashing.
I actually had both original keys with and tried each to no avail (same thing: starts, but engine kills after a few seconds). I checked the PassKey III fuse and even replaced it - still no luck.
Called two different dealer service departments and they suggested turning the key to the "ON" position and leaving it for 15 minutes. I tried this 3 times and still the same issue.
I understand this can be a VERY expensive repair as I've read it requires replacing the ignition module and perhaps the Theft Deterrent Module. How to at least temporarily by-pass or reset the system so I don't have to get it towed (of course it's no where near my place).
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Wife's truck- 2002 v8 limited explorer with 116k... Yesterday she calls and says the od light is flashing and the message center says check transmission. She drove it home then when I got home the light was off and all seemed ok. I am taking it to have the codes read and hoping that my mechanics scanner picks up a code.
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I have a 2002 with a 4.8 ... My alternator started to make some noise, and my battery wasn't holding a charge very well so i decided to change the alternator today before it went some were out in the boonies. After i put the new alternator in, the battery light started flashing in the "message center" but everything seems to be running fine. The voltage gauge in the dash is reading about 15. So from there I turned everything on in the truck and the gauge barely dropped. At this point I'm not sure what to do, I'm going to put the old one back on and see if it goes out, oh I also put some tension on the belt to make sure it wasn't slipping.
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Ok, so this past week i towed my 72 f250 to IL from CA. 2100 Miles. 6100#s with the trailer. No problems at all. Got about 9 MPG too the whole way. Ok, so here is my problem now. As some of you may know, IL just got about a foot of snow. Its all slush at this point. I am living in the country right now so i drive thru alot of it. Ok, now you know the back story, today i drove the truck to my brothers house, put it in park and bam! check engine light came on. About a half hour later i drove it to AutoZone and had them check the codes. Here is what they pulled.
P0705
P0171
Need to know what to replace. I have to drive it back to CA in 4 days.
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My '02 Explorer transmission is giving me a little trouble. The vehicle has 240,000 miles, but the transmission has been rebuilt several miles ago. I recently had the fluid changed, and I had them add a bottle of Lucas Transmission Fix, which I have had good luck with in the past. Most of the time, the transmission behaves normally.
Occasionally however, when I come to a stop after driving for a while, the transmission stops pulling, like it has shifted into neutral. Sometimes it will re-engage after a couple seconds, and sometimes I try to hurry it along by shifting to Park, then back to Drive and it will go. If I am on an incline, and the vehicle does this, it will actually roll down the hill.
Hopefully there is a simple fix because this thing is too close to the end of its life to require a hefty repair investment! Maybe a switch or a sensor. I'd love to tell you that I checked the fluid level, but Ford forgot to put a transmission dipstick on it.....
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So driving home today cel came on and vsc started flashing.
The codes I got were pretty out there
P0420 - cat converter (this one I did expect)
B0cc0 ???
C3a32 ???
U0a8e ???
B3e1f ???
I'm wondering if this was poor communications between the unichip and ecu? As for the vsc flashing, people complained about this during rain. It is currently raining. But not certain this is the issue.
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I have a 2006 F350 SRW 4WD 6.0 with 127000 miles on it. A couple of weeks ago it, pulling out of my driveway, it hesitated and tow haul started flashing. I had codes pulled and it showed P1780, P0751, and P2700. After turning off, codes were gone and tow haul off. Ran fine since then every day. Yesterday while going about 50 mph it started acting like it was in neutral (revving up), nothing happened when mashing the accelerator. Coasted to a driveway and truck would not move, only sounded like it was in neutral.
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