Re: Overdive for 4-speed `84 240DL Wagon
> Hey all, 210k miles. Overdrive is working less and less.
> I already gutted the relay. Overdrive is hardwired to a heavy duty
> switch I pulled from something on the Apollo program. The overdrive
> will enguage sometimes if its cold out. Once the car warms up it seems
> less likely to work. If its like 60 degrees out, it sometimes will
> enguage if I'm going 70 up a hill and floor it. Less and less likely
> though. That used to be surefire.
> We've replaced the tranny fluid ~30k ago. There's a magnetic filter we
> clean fairly regularly. I think we even replaced the solenoid itself
> like 60k miles ago. All these steps "felt" like they were making it
> better, but for every one, 10k latter it was just as bad as it had
> It keeps getting worse. It used to enguage basically no-matter-what in
> the cold. Now once the car starts warming up, it doesnt seem to want
> to enguage.
> I'd really like some advice on this. with a working OD, the car would
> be great.
There's a set of seals inside the OD unit, IPD sells a rebuild kit for it.
If you don't like the relay, you could always use the pre '81
arrangement with the heavy slide toggle in the shift knob, though I
personally like the relay better.