For a while now my base Auto RSX has had a delay going from 1st to 2nd. Now this morning it got really bad. The RPM goes up while in gear but it's as if the car is in neutral, then eventually it goes in gear and works. I'm hearing some odd mechanical noises as well. Now the D light is flashing and after doing a scan, all I get is P0780 Shift Error.
Besides changing the transmission fluid, anything else I can do? Is there any way right now to tell if it's a mechanic fault with the transmission itself, or is it something electrical or a solenoid? Sigh. Any help appreciated