I'd guess the switch is bad. Get a two prong, open/close ( on/off ) switch at autozone. (5 bucks)There will be two wires running to the switch, cut them. When they are connected together the overdrive light should turn off. When not connected the light will turn on
Crimp one female connector to each wire. Slide one female connector on each prong of the new switch. Mount switch. Presto.
Now, if you do go this route, and you cut your wires, if the light stays on regardless if they are connected or not, there may be a broken or squeezed od wire somewhere. If you have floor shifter the overdrive wires are usually fed through the shift linkage witch could rub the wires overtime and break the connection. That's where I'd e looking and inspecting wires if I were you.
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I'd guess the switch is bad.
Get a two prong, open/close ( on/off ) switch at autozone. (5 bucks)There will be two wires running to the switch, cut them. When they are connected together the overdrive light should turn off. When not connected the light will turn on
Crimp one female connector to each wire. Slide one female connector on each prong of the new switch. Mount switch. Presto.
Now, if you do go this route, and you cut your wires, if the light stays on regardless if they are connected or not, there may be a broken or squeezed od wire somewhere. If you have floor shifter the overdrive wires are usually fed through the shift linkage witch could rub the wires overtime and break the connection. That's where I'd e looking and inspecting wires if I were you.
Goodluck