Volvo: 88 Volvo 240 wagon wont shift into 4th gear, volvo 240 wagon, volvo 240

Question
Hello,

I have an '88 240 wagon which won't shift into fourth gear. Fuse #11 is fine. I replaced the overdrive relay hoping that was it but no luck. I can still toggle the "4th gear disconnect" light on the dash on and and off with the button on the stick. Transmission fluid is good and the kickdown cable looks ok, it has not been adjusted for a long time.

Where do I go from here?

Thanks
Jed

Answer
Jed,
Test the OD solenoid on the trans. See if you hear it click when it is supplied 12v's. When the key is turned on it should have 12 volts. Make sure that the wire to the sloenoid is in good shape. If what you hear is not a good solid sounding click replace the solenoid and road test the car. If with a new solenoid the trans will not shift into 4th then the problem is internal in the trans.