because you are engaging the clutch which cuts out the engine for a smooth gear change
Fuel injection or fuel contaminated?
I just put a new battery and alternator in my car, but when i put it in gear or start slowing down to stop..the car die out. Also the brake light is continely on.
car starts but when i put it in gear it stop
The transmission may need repair or the shift lever may simply be disconnected.
Is that when you shift INTO gear? It's supposed to drop a little - 150 to 200 rpm - when you put the car in gear. If it drops 500-600 rpm, start by looking for vacuum leaks.
the car goes back
If it's a newer model car it could be neutral safety switch or torque convert lock out switch. Is your check engine light on?
low gear oil or gears are worn.
the transmission is always in gear. if its not there is probably a stripped gear in the transmission.
If the brakes are out then you have no business putting it in any gear because it is unsafe to drive a car with no brakes.
Here are some possible causes: 1. Warped flywheel. 2. Engine out of time. 3. Engine misfiring.
Low Fluid level. If the car has a three-speed automatic, the torque converter clutch solenoid is locked up. Unplug it from the transmission, and see if it still dies when put in gear.