Automatic Transmission Overdrive

[pennyman1]

there is a sensor on the intake manifold near the throttle body that closes when the engine is warmed up thats bad - take the wire off the sensor and ground it to the intake on one of the lugs on the manifold under the throttle body and the O/D will work any time the button on the shifter does not lock it out.

[Rperales25]

there is a sensor on the intake manifold near the throttle body that closes when the engine is warmed up thats bad - take the wire off the sensor and ground it to the intake on one of the lugs on the manifold under the throttle body and the O/D will work any time the button on the shifter does not lock it out.

Is it called a thermo switch?

[geezer101]

Is it called a thermo switch?

Yes, but be sure if you are ordering a replacement unit you specify what it's for or you may end up with a temperature gauge sender unit (it happens all the time...)

[MrPaco]

Yes, but be sure if you are ordering a replacement unit you specify what it's for or you may end up with a temperature gauge sender unit (it happens all the time...)

My shop ordered the temperature gauge sender unit, they got the thermo switch. twice