PLEASE HELP! ok i have a 97 isuzu rodeo, auto,4x4, 3.2. Yesterday i went outside to start it and when i turned the key to ON, it said on the dash that i was in 3RD, but when i turn the headlights on it says its in reverse. If i push on the trans and move the whole Engine, trans and transfer-case assembly up, the car says its in park and acts normal, until i go to start and then it wont start. and goes back into 3rd, I have had the rrabs and brake light on, and now they shut off, the check engine light has also turned off (the code was for o2 sensors). And now when i do start the car and drive it, the trans shifts fairly hard. I AM LOST ON THIS! can someone please point me in a direction!
Check your wiring is my first thought.... maybe someone tried to hack in a stereo system and the electrical tape finally came loose. You have a short somewhere, try looking behind the stereo head unit, most of the dash and trans hump circuits go through that area.