Why Won't My Car Start After Replacing The Battery. Replacing a starter will no way affect the starting of a car. After this, check the connections, like the electrical components and the brake lights, and clean any corrosion to see if that has caused a contaminated battery.
Other potential culprits might include a defective fuel injector, faulty spark plugs. Further, the battery must be compatible with your vehicle. If the corrosion becomes excessive, it can interfere with the connection.