Q: Car stops when put in drive or reverse

asked by on

Hi. This is Anish. I am from Arlington, TX. My car just stopped working. It starts fine. But when I put it in drive or reverse, it just stops working. And I dont know whats the problem. It worked fine all the way and stopped working suddenly. So it would be great if you could help me out. Thank you!
My car has an automatic transmission.

This may be a sign of a faulty MAP sensor as the vehicle responds adversely to a load put on the motor (i.e. putting it in gear, making turns (which makes use of the power steering pressure switch) turning on AC or engaging the brakes). The Manifold Absolute Pressure (MAP) sensor senses engine load and generates a signal that is proportional to the amount of vacuum in the intake manifold. The engine computer then uses this information to adjust ignition timing and fuel enrichment. When the engine is working hard, intake vacuum drops as the throttle opens wide. The engine takes in more air, which requires more fuel to keep the air/fuel ratio in balance. When the computer reads a heavy load signal from the MAP sensor, it adjusts the fuel mixture to slightly more rich than normal so the engine can produce more power. The computer will then retard (back off) ignition timing slightly to prevent detonation that can damage the engine and decrease performance. This may also be caused by other closely related components such as a dirty or failing mass air-flow sensor, a faulty throttle position sensor or potentially a vacuum leak. I would recommend having an expert from YourMechanic come to your location to diagnose and inspect your vehicle.

Was this answer helpful?
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details
  1. Home
  2. Questions
  3. Car stops when put in drive or reverse

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: May need new alternator

You may have a bad alternator, but I get a lot of customers who think that the alternator is bad, when the problem is actually with the battery or its terminals. I recommend that you have a mechanic, like the...

Q: Power window, signal light and wiper malfunction after rain water got inside my car.

Hi there. Usually when electrical components inside the vehicle become wet, it will only take one exposed wire to short out a relay or fuse panel. There are several electrical components that operate all of these systems that may have...

Q: My Lumina 2001 turns off while driving 2001 Chevrolet Lumina

When the engine is not starting you will need to check and see if you hear the fuel pump run when you turn on the key on and off? If you do not hear the pump then you most likely...

Related articles

How Do Power Car Windows Increase Passenger Safety?
Power windows are responsible for approximately 2,000 emergency room visits every year. When a power window closes, it exerts enough force to bruise or break bones, crush fingers, or restrict an airway. Though...
How Long Does a Heater Control Valve Last?
Keeping the right amount of coolant in a car is essential in keeping the engine at the right temperature. Failing to have the right amount of coolant or even bad elements...
How to Avoid Back Pain in a Car
If you have back problems, sitting in a car for an extended period of time can be excruciating. Even without back problems, you could experience discomfort and soreness from...