> When I try to engage the overdrive the solenoid plunger jackhammers
> up and down. Is this the 'continuous' buzzing referred to in the overdrive
> manual that indicates the solenoid needs to be replaced,
Yup. The holding coil is not working. The pull-in coil lifts the plunger, then
the contacts open and since the holding coil isn't working, the plunger falls
again. Then the contacts close and the cycle repeats.
There's a small chance you can carefully disassemble the solenoid, find a broken
wire and resolder it. But a new solenoid is better.
Should be available from all the usual suspects.
Randall
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