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Old 12-16-2016, 12:11 AM   #1
Maple Leaf Drive
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Smile 1999 ford escort sport

After taking out the gasoline motor we installed a DC electric motor directly to the automatic transmission with a flex coupling - no torque converter.

We put one battery in its original location for accessories ,lights & ignition. Another 12 volt battery is hooked up to run the Dc motor -the transmission is not engaged ,why?
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Old 12-16-2016, 02:11 AM   #2
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Re: 1999 ford escort sport

I'm not sure what I'm missing here but an automatic transmission is not going to work without a torque converter to pump the fluid.
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Old 12-19-2016, 10:44 PM   #3
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Re: 1999 ford escort sport

The DC motor is directly connected to the input shaft of the transmission.
So there is pressure build up if the motor is running.
I think in order to engage the transmission the electric circuit must show the engine running. May be an electrical circuit that has to be satisfied before transmission is engaged?
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Old 12-19-2016, 11:37 PM   #4
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Re: 1999 ford escort sport

Most, if not all, electric cars don't even use transmissions. I'll be honest, I still don't totally understand how an automatic trans and torque converter works, but you might want to take a read of this. Just spinning the input shaft isn't what the torque converter does.

http://www.transmissionrepaircostgui...que-converter/
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