Q: Serpentine belt snapped, replaced it and jumped the car it semi worked but then didnt. I changed my alternator but wont start

asked by on

I changed my serpentine belt and tried to start the car but it wouldn't so i passed cables and it kind of started up but not fully to get the car running. I bought a new battery but the car wouldnt start up. I bought a new alternator thinking it was sucking up all the energy out of the battery but it didnt work. What other reasons might be causing my car to not start up?

My car has 149000 miles.
My car has an automatic transmission.

If you have what seems like a dead battery and when you try and jump start the vehicle and it still will not crank good enough to start the motor then you will need to have a voltage drop test done to the battery starter cables to see if they are losing contact. You may have a bad cable and need to have them replaced. If the cables are good then the starter will need to be replaced. The most common cause is oil leaking onto the starter down the back of the motor or the rear main seal of the engine.

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. Serpentine belt snapped, replaced it and jumped the car it semi worked but then didnt. I changed my alternator but wont start

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: Oxygen sensor bank 1 sensor 1

Hi there. Getting to the O2 sensors are tricky without removing some additional components or using specialty tools. You might want to have a professional mobile mechanic come to your location and complete an O2 sensor replacement to help you....

Q: Q: My vehicle won't start

Hello. I would recommend first disconnecting and cleaning the battery clamps and battery with baking soda and water. Once the terminals are clean then see if it will crank over. You may need to jump start the battery if it...

Q: There's a very loud clicking noise every few seconds from rear of car while driving

Hi there. This type of clicking noise is typically an indication of a brake pad that is dragging on the rotor or wheel bearings that are damaged. Most of the time if the sound increases in speed as the vehicle...

Related articles

What Causes Hoses to Leak?
While the largest part of your engine is mechanical, hydraulics plays a significant role. You’ll find fluids at work in a number of different areas. Your car's fluids include: Engine oil Transmission...
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...