Ford Excursion :: O/D Light Started Flashing - Code P0743
Oct 26, 2013
On the way home tonight, the O/D light started flashing. I happened to have the Bluetooth OBD adapter with me, so I plugged it in and opened Torque. It comes up with a "pending" code of P0743. After a little bit, the light quit flashing so we drove the last mile home. The O/D light began flashing again the last couple hundred feet before our driveway. There didn't seem to be any loss of power or anything like that the whole time.
After we got the kids to bed I went back out to check the fluid level. (It had cooled some, so I let it run a bit before I checked it - the light wasn't flashing this time.) The level is at the second dot, right below the crosshatch. It's almost transparent, but I don't know when it was last flushed (if ever). From what I've seen on here, I'm guessing this is an electrical short somewhere?
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My girlfriend just bought a 98 XLT AWD 4.0. does have a few problems.
First, the brake light is on (on the dash). all the lines are good, but the front pads need to be changed. if i take off hard, the brake light goes out for a bit.
Second, had a CEL. P0743, torque converter clutch circuit blah blah. also, the o/d light flashes constantly.
The trans shifts fine, even under WOT. also goes into o/d with no problems, and the button works.
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1997 Ford F150 - 133K Miles - 6cyl - 4.2L. This is a truck that gets less than 2K/year put on it. Has had "issues" with worn bearings and holding oil pressure for a few years now. Yesterday, the check engine light started flashing (as opposed to solidly lit) and the code came back as a cylinder #4 misfire (only the one code). The truck was clearly not firing on all cylinders and at idle, ran terribly (couldn't be driven). I just did a compression test on all the cylinders and all measured around 140-145psi except the #4 which read almost 170psi. I rechecked this a few times as well as a couple of the others and am now sure of the results. What could cause this one cylinder to have a higher compression ? Is whatever is causing this increase in the compression, also be the cause of them misfire ?? I'm stumped here and quite frankly, expected the compression on the #4 cylinder to be really low as opposed to the others.
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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.
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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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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.
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2006 F350 5.4L 5R110W
I've had the TCC solenoid replaced. Not long after, it locked up again. I had the whole solenoid body (including harness & sensors) replaced .....continues to run hot and eventually lock up. IIRC, it gives code P0743
Transmission shop seems to think it's an electrical issue outside the transmission and thus not something they can deal with.
I took it to a dealership and they said that if it was an electrical issue outside the transmission, it would be throwing codes every time I start it up....which it isn't. They would start be replacing the solenoid (and possibly the whole body) with 'brand new' parts.
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On my 2006 Ford F150 2WD, v6 automatic, the overdrive dash lamp is blinking, I get a engine light and the code I get is a P0743. That indicates the solenoid or wiring is bad, but everything works just fine. The transmission is running fine, clear fluid - no odor. The overdrive works and the truck shifts like new. When I start, the "OD-OFF" light immediately starts blinking and never changes. I can activate the OD normally and it doesn't effect the blinking light.
Where to start? I suspect that since all is functioning well, the issue is with the signal to the ecm? By the way, I can clear the code so that the engine light goes off, but the "OD-OFF" light remains blinking.
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I am trying to find out how many o2 sensors are suppose to be on my 2003 excursion? I am getting two codes on my OBD reader, an "o2" and an "o2 heater" code flashing...... I have replaced both the o2 sensors i found, both were at the exhaust manifolds.
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I've a 2006 sonata 3.3 with 100k miles on it and recently it started going to limp mode leaving me in 3rd gear only after scanning it I've found code p0743 (TCC selonoid open/short circuit) what to check from here or can share any wiring diagrams for this particular circuit I'm not sure where to start. where is the wiring harness for that is located ? is it in the oil pan ? and if I wanted to pull the selonoid itself to check would it be something I can do myself ?
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Friday I pulled my steel gn 3 horse trailer about an hour each way. with the horses it weighs right at 7000 pounds. no issues. Saturday morning I drove to town, no issues. Saturday evening, I got in it to run down the road and about 2 miles from the house, the check engine light came on and the tow haul light started flashing and the temp gauge is dead. drives and shifts normal, tow haul button still functions. Truck is stock except for an EGR delete. No tuner, FICM was rebuilt. I had it on a battery minder before I left and was thinking about pulling the batteries and letting it sit for a while to see if it clears. Scan Gauge II shows no codes.
Sunday: So I let it sit all night, batteries connected and it was completely normal this morning. will see what happens when I drive it to work tomorrow
Later Sunday evening: So I just took it out for a test drive, went a couple miles down the road, shifting normal for a cold start. Temp gauge is working, just as I am almost back home. 5 miles at the most, temp is coming up to normal, gauge goes dead and check gauge light comes on and tow haul starts flashing. I think it might be the sensor.
This morning: I got about 6 or 7 miles from home, trans just got up to temp, pulling up a hill, it shifted out of overdrive, tft gauge went dead, check gauge light came on and the tow haul light started flashing. still shifts like it always has and the tow haul button still functions.
I am thinking it is just the temp sensor. Truck has 159k on it.
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I have a 1997 Dodge Avenger ES that reads code P0743 Torque Converter Clutch Solenoid. I've replaced the transmission control module, and filter. I've called the Dodge dealership and asked if the new transmission control module needs to be programmed. The service department said "Possibly" I said "Well it's shifting better than before. If there wasn't any firmware on it what would it do?" He said "My guess it that the car wouldn't shift." I asked if the Torque Converter Clutch Solenoid visible once you remove the filter. He said "I'm not sure." Clearly, my car isn't going there. Then asked to be transfer to the Parts department to see if there was a part called Torque converter clutch solenoid. That answer was "No" there isn't a part listed called "Torque Converter Clutch Solenoid". What should I do or try?
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I did a CCV MOD and washed the engine with simple green and a garden hose yesterday, started the truck and it was running fine for about 10 min. After that it started spattering and a P1280 code poped up. Is it related to a wash or ccv? It does not stoll but idles bad, drives fine once i get it over about 5mph.
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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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Ok, so the OD light sometimes blinked and sometimes not. I drive for a week. About 500-600 mi. Today the tranny starts acting up. Up until today NO probs at all. I bought a code scanner. Codes are P0781, and P0743. I also bought new filter and fluid while there. I read here that it could be a shift spring that is easily accessed when doing the filter change. I guess I should get that and do it,and the filter and see what happens next?
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Hopped in the truck for a test spin, and then CEL came on, and the OD off light started flashing. Just my luck. Used my SCT ExCal2 to read the codes and got a P0740 (TOR CVT CLT CIR), P0743 (TOR CVT CLT SYS ELEC FL). Had ZERO time to deal with fixing the problem before leaving for the trip. Trans doesn't sound funky, and shifts into OD just fine. So off I went, with fingers crossed. Fortunately, everything went A-OK.
A little hard shift from first to second, but other than that, everything seems "normal" but I'm still concerned. I have a week before I have to do the 900 mile trek back north, but the local Ford dealership is COMPLETELY unwilling to steer my in the right direction to fix the problem myself. They act as if the codes are some kind of trade secret and politely told me to go jump in a lake.
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I got a 99 f150 with a 4R70W and 311,000 miles on it and last year the od light started flashing while I was going down the interstate so I checked the fluid when i got home and it was beyond burnt so i changed fluid and filter. So a month or so ago it started doing this thing where on take off it will rev up like its in neutral for a couple seconds then reengage and drive normal till i stop and start to take off again. It don't do it every time and it drives/pulls just fine other than that.
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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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I have a 1998 expedition 4.6 4x4 check engine light on od light flashing sometimes checked it and got p1747 code i was told epc solenoid or short on trans wiring. I already dropped the trans pan, looking for a step by step easy way to diagnose and find the short or if i need to replace any of the solenoids. I have voltmeter and taste light....
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Did I steal my own truck?!? Just happened the other day and has only happened the once that I can remember : [URL] .....
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My 2002 v10 4x4 with 103k is parked in my garage overnight so its toasty when i leave the house. But I've noticed when it sits out in the cold all day i'll get a intermittin ABS light. i left work one day at the first stop light i had a flashing ABS light. once the light turned green it went away and the system worked fine.
Last night the truck sat out in 5F weather, i remote started it so it was warm inside.. I left home and noticed about a mile down the road the ABS light came on and the speedo dropped, this lasted about 2 sec then came back no issue after that and the abs system is working just fine.
So, my question is what sensor would it be? I'm not 100% on how it works with the excursion. i know my explorer has a sensor in the rear axle and 2 sensors up front. i have not tryed pulling a code as the light doesn't stay..but i may throw the OBD2 reader in the console so i can try to catch it next time?
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