Just built up my first car, skipped the extra seats and fenders etc but all other parts are installed. The engine is running fine without the need to choke or anything. Can gear up and down but the car just won't move. I've already checked the handbrake. Thanks in advance :D. The light should be solid, if it's blinking it means your not in 4x4. If you notice it blinking, try to put the truck back in 2 wheel drive, shift into neutral, and then select 4HI again, when you put it back in drive or reverse the light should lock in. Snowbrdr1220, Mar 10, 2015. #11. Mar 10, 2015 at 8:17 AM.