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Overdrive not working?

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Old Dec 6, 2004 | 05:57 AM
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Overdrive not working?

Hi,

Is there any way to tell if the OD is working? I have noticed that the switch doesn't do anything when running at any speed so I guess there is a fault on the control system.

I note that the switch module comes out of the end of the transmission shifter as a complete module. Are these reliable as it would be a simple cheap thing to change first...

What is the typical failures on them.

'92 302 EB, E40D etc.
 
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Old Dec 6, 2004 | 11:09 AM
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yes change out that module its more then likly your problem
 
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Old Dec 8, 2004 | 12:53 PM
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I've had a look at this switch this eve and as far as I can tell its ok. I get continuity between two of the pins when the button is pressed and the LED lights up when I put a PP3 battery accros the correct terminals. I took the whole thing apart and cleaned up the internal contacts too as they were a little tarnished.

Where abouts is the PCM on a 92 Bronco with E40d so I can start chasing wiring.

Thanks
 
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Old Dec 8, 2004 | 03:16 PM
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im not sure where that is. but im sure someone will chim in soon
 
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