96 N* STS
No overdrive on my Caddy - seems the solenoid is gone in the trans? It just suddenly stopped working. Still drives fine, but no overdrive, so the freeway mpg is limited to around 20 or so average. I used to get 24 or so.
I live in an apartment - no tools, no space, so have to have a shop do it for me. Any idea how much this should cost?
Is it "safe" to get this done at a non-dealership trans place like AAMCO??