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Overdrive stopped working


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Hi Guys

I have a 1974 TR6 with overdrive on 3rd and 4th. (j type I gues)

 

All of a sudden my overdrive stopped working. when I switch on the ignition and put the the car in 3rd gear and switch on the OD I do no hear anything happening.

Any suggestions?

Thanks a lot!!

Steven

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I don't think there is a relay on a J type, so then next thing would be to check the solenoid, is it getting power?

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Is the car A type or j type? If the car is A type it has the relay next to the horn relay under bonnet NS wing / bulkhead. That's the easiest place to start.

 

If its a J type I would get under the car with a test meter and check for voltage & earth on the two connectors on the solenoid.

 

After that it depends what you find and whether A or J type.

 

Alan

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Check you haven't pulled the bullet connecter apart with your foot, adjacent to the foot rest on the left side footwell. That was the cause of my inop O/D. (A Type but I expect the wiring is the same.) before you do all the serious stuff.

ken

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First: fuse? Then take the car for a drive and select OD in 4th gear. If it responds, most likely a switch problem. Over time, these wear out. Then start tinkering with the spanners as suggested above.

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Hallo Steve from NL,

If you have worked under the dash, and the issue developed after that, have a look at the connectors from the wiring that comes from the steering column under tge dash, drivers side. 2 wires are from the OD stalk.

Succes,

Waldi

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My OD (J type) shares a fuse with the indicators and the fuel gauge. An exposed wire on the indicator mechanism within the steering column was causing a short and blowing the fuse - which meant I lost fuel gauge, indicators and OD - so a check of the fuses would be my first point of call.

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