Hello, I am a new member but I did not want to meet like this. I just bought a 1995 land rover discovery, drove great, well I had to get it smogged here in the great state of Airizona. The Tech put my car on the Dyno machine and started the test, put it in gear and the vehicle jumped off the rollers, he did it again and the car started making a loud humming noise, the manager came out and told him to stop, and he told me to drive it in the parking lot to see how it drives. I cant get it to go faster tha 5 miles an hour, the SRS light stays on, the diff lock stays on and the 4 wheel light,( shows 4 wheels and axle) stays on as well. Had to creap it home, about 1/2 mile, kept trying to pull to the left, what happened, I filled out a incident report per the managers request. Also the State of Airizona conducts the test here. Help Please.