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Sounds like the center of the flexplate has broken around where it bolts to the crank. I have seen this when the flexplate is put on backwards on small block chevy but not sure on 3.1. Let us know what you find out. Good luck.
How much did he have to add? If just a couple quarts I would just drop the pan and change out what you will loose. Around 4 quarts.If he added more than a couple quarts I might consider a flush and fill.
May have developed a cross leak in the VB or pump allowing the TCC clutch to apply. May ck the idle also sounds pretty low. Let us know what you find out.
Wrong fluid will not cause your issue. Unhook the cooler lines and loop them together. and give that a try. You already ruled out the tcc solenoid.
Yes you can unplug the case connector and try to see if it works. You can drive it as you only will lose 4th gear and lock-up. Does it just stall in rev and not drive? If it is just reverse you could have a clogged cooler in the radiator. Take the cooler lines off at the radiator and affix them together with whatever will work and keep them from leaking then ck to see if it will kill the engine. Let us know what you find. .
I found this info,but it is stating that that code will not set CEL? i will do some more checking later today. Maybe some one else is knowledgeable on this code. I don’t recall ever seeing this code.
Circuit Description
The Transmission Oil Temperature Sensor is a Thermistor within the internal wiring harness of the Transmission in the adaptor case Oil Pan. The Transmission Control Module (TCM) applies 5 volts to the Sensor Connector M5 Terminal 3C. The other side of the Sensor is connected to ground through the TCM Terminal C14. When the Transmission Oil is cold, the Sensor resistance is high and the TCM will sense high signal voltage.
As the Transmission Oil temperature warms to normal Transmission operating temperature of 80°C (176°F), the Sensor resistance becomes less and the voltage decreases at about 3.5 volts. Note, for more accuracy the measurement is done differently for low temperature (less than 45°C) and high temperature (more than 50°C).
When DTC 16 is set, the Transmission will use a warm value for operation, but the Scan Tool will display the actual Oil temperature.is Diagnostic Trouble Code (DTC) does not flash the “CHECK TRANS” Indicator and does not set the Backup Mode.
Diagnostic Aids
This diagnostic is an electrical test done by the TCM (we call it an “electrical test”).
Detection Conditions:
Voltage between Terminals B3 and C14 less than 0.4 volts.
The condition needs to be present for at least 20 seconds. During the detection time the TCM reads the low voltage that defines a 170°C temperature.
Action After The Detection Time:
Default Transmission Oil temperature is set to 100°C. But Winter Mode still available.
Recovery Conditions:
To recover when voltage is more than or equal to 0.4 volts after detection time.[quote=”nightflyr” post=158340]It gets to be tricky when you go that long with out never changing the fluid.
Sometimes changing the fluid after that much mileage may cause issues.
“If your vehicle has high mileage (> 80,000 miles) and the transmission has not been maintained, I would not recommend replacing the fluid and filter. The fluid that has been in the transmission all this time has become dirty and gritty. This gritty fluid is actually providing needed friction for the worn internal parts of the transmission. Changing the fluid and replacing the filter would remove this friction that the internal transmission parts have become dependent on. If you have not been regularly maintaining the transmission throughout the life of the car, you might actually be doing more harm than good if you replace the transmission fluid at this point. For example, putting new clean slick transmission fluid in an older high mileage vehicle could cause the transmission to slip.”
“If you are not experiencing a problem, have over 80,000 miles on your car, and have not kept up regular maintenance on the transmission, my advice would be to leave the transmission fluid and filter alone.”
The final choice is up to you.[/quote]+1
I ran into this issue a few years back,same model. The car had been driven with mismatch/worn tires for some time and the resistance that caused on the driveline found the weak link. We had to replace carrier assembly as it had worn where the spider gears run. Hope this isn’t your issue,good luck. Let us know what you find out.
What did the bottom of the pan look like? Was fluid burnt? The PCM has set the transmission to have high line pressure. It has detected a problem and is trying to self preserve. You might try disconnecting the battery a leave for some time to try and drain the keep alive memory and set everything back to default settings. This is an adaptive learn trans and measures time between when one clutch pack applies and another one comes off and if it is out of range it will set high line. It fluid was dirty and burnt,by changing fluid you may have washed out what the clutches were gripping on. I also would stay away from any type of fix in a bottle. Strictly just my opinion as after years of seeing the results of these “fixes”. It is a band aid only. let us know what you find.
Very common on the early E4OD is the MLPS/ neutral,safety switch fail.and cause similar problems. If transmission is not receiving proper voltage it will raise line pressure to try and preserve itself. Also Ford updated part with a new harness you may have to wire up if not done already. Good luck.
The sensors are included with the new plate, they are an integrated part of the assembly. OEM parts are best but there are aftermarket parts out there too. I have no experience with them but have not heard anything bad. Let us know how it goes. Good luck.
How much came out when you drained it? 4 quarts sounds about right. Put it to the full mark however much it takes. You are doing the fill and check correctly as you are describing.
