Swishing noise when starting and battery keeps dying
My car has 102000 miles.
My car has an automatic transmission.
How to Identify and Fix Common car Problems ?
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> Clicking sounds – If you hear a clicking sound when you attempt to start your vehicle, then it is possible that your vehicle has a flat or weak battery. The clicking sound could be the starter motor, and it means that there is not enough power getting to it. >
There are a number of signs that your car battery is dead. Firstly, listen out for odd noises. Low pitched whining noises and the noise of a cranking engine without it starting are both signs of a dead battery.
The alternator has several bearings which allow the alternator`s rotor to spin freely. If these bearings begin to fail, you will notice a loud whining noise, which will increase when you accelerate or the car is under heavier load.
If the battery`s power is fading, this can have an impact on how swiftly the engine starts. Pay attention to how long it takes for the engine to start after you`ve turned the ignition. If the car`s engine is taking longer than usual to get fired up, a weak battery may be the culprit.
Relevant Questions and Answers :
the most relevant questions and answers related to your specific issue
The idle air control valve is a small valve on the engine’s intake system that reads the air intake as it comes into the motor. This is controlled by the car’s ECM which uses this information to make adjustments to the air/fuel ratio depending on various inputs such as outside air temperature, intake air temperature, load and various other things. As you accelerate, your car’s engine is receiving a much higher dose of fuel than when at idle and conversely, when you let off the gas pedal, there is a sudden change in this fuel supply as a result of your foot letting off the pedal. When this happens, the job of the idle air control valve is to bring this deceleration down to a slow and smooth idle rather than suddenly cutting off the fuel supply causing the motor to die. When the idle air control valve is not working properly, this cause a disruption in this process resulting in the engine not being able to idle properly. I would recommend having a professional come to your location to diagnose and inspect your vehicle.
The codes that you have will cause the car to shut down, run rough, or not start at all. The crankshaft sensor and camshaft sensor should be replaced. I suggest having a certified technician from YourMechanic come diagnose the charging system and check engine codes to help you proceed with correct repairs.
A fuel pressure test would be a good idea to verify correct pressure and so that you’d be able to eliminate that possibility. It should be 58psi on your Magnum.
I also recommend getting your battery tested (I know, it’s new, have it tested anyway) and be sure it’s charged to at least 75%. And yes, loose battery cable connections can result in electrical problems.
If you need some assistance with this, consider enlisting a certified mechanic who can perform the checks I’ve mentioned and diagnose your starting issue firsthand. The mechanic can then perform the necessary repairs once the problem has been isolated. Good luck.