If you are able to, you should try to replace the broken clamp as soon as possible. This will help to ensure that the battery is making proper contact with the terminals and that the electrical system is functioning properly.
Here are some other possible causes of a car stalling when you slow down:
* Low fuel pressure: If the fuel pressure is too low, the engine will not be able to get the fuel it needs to run properly. This can cause the car to stall, especially when you are slowing down.
* Faulty fuel injector: A faulty fuel injector can also cause the car to stall. When a fuel injector is not working properly, it will not deliver the correct amount of fuel to the engine. This can cause the engine to run lean, which can lead to stalling.
* Vacuum leak: A vacuum leak can also cause the car to stall. When there is a vacuum leak, air is sucked into the engine through a hole or crack in the intake system. This can cause the engine to run lean, which can lead to stalling.
If you are unable to replace the broken clamp, you should take your car to a mechanic to have it diagnosed. The mechanic will be able to determine the cause of the stalling and recommend the best course of action.