240 L4-2.3L SOHC VIN 88 B230F (1986)
Overdrive Dis-engagement Slow And/or Slips On Disengagement
Problems and Remedies
Engaging Problems
A new overdrive which has not been used for some time might be difficult to engage. The reason is mainly lack of "exercise" which causes the
parts to stick. Some reasons:
1. Low oil level
2. Solenoid sticking or open electrical circuit.
3. Clutch sliding member sticks to the shaft.
Engaging Remedies
1. Check that the oil level is up to the plug level. Low oil level can cause many problems.
2. Check solenoid operation. Switch on the ignition, engage 4th gear and switch on the overdrive. There should be a clicking sound from the
overdrive solenoid.
No clicking sound: Do NOT start to replace the solenoid. Check voltage to the overdrive connections, then to relay etc. Use jumper wires directly
to the overdrive to check operation.
3. If the clutch sliding member sticks to the shaft: Drive at approx. 50 mph (80 km/h). Overdrive switched ON. Disengage the clutch, increase
engine rpm to approx. 5000, and quickly engage the clutch again. In most cases this should free the clutch sliding member. Some "exercise" is
recommended for new cars with sticking clutch sliding member. Drive at 50-55 mph (80-90 km/h). Coast and engage/disengage the overdrive at
least 25 times. This will polish the bearing surfaces.
Operation Malfunction
Overdrive does NOT engage, indicator light does NOT illuminate.