Marvin,

Below 30*, maybe 25* my car will not shift from 2-3 until above 3000 rpms when first started. As said above, after about 1/2 mile it shifts normally.

In addition there is a cold shift "softener" feature that makes the transmission shift more slowly (but at the same speed). This was causing a shift/rpm flare for me coming up a large hill every morning. I disconnected the wire (attached to the thermostat housing on the passenger side) as recommended by others here. It now shifts more firmly and no flares when cold.

Now that it is warmer, it is back to shifting as usual.

Chuck