Q: New Battery, New Alternator, Truck still wont start

asked by on

I have a 2012 ram 1500 hemi. when you would go to start it, it would click once like a dead battery, but if you wait a minute then try starting it, it starts right up. then after about 2 days of that it wouldn't start at all. took the battery in and it was a bad cell, replaced it. different problem now. jump the truck, drive it around for awhile park it, turn it off and its dead. so we replaced the alternator yesterday. but same problem. jump it, drive it around, park it and its dead. Before I jump the truck, my tuner tells me the voltage is 12.9 once jumped, the voltage is 14.6-14.8 and it does not die unless you turn it off.

My car has 108000 miles.
My car has an automatic transmission.

Hello, It sounds like you may have a faulty starter relay. If the clicking noise went away after replacing the battery, it is likely that the dead battery is what caused the clicking sound as a result of being too weak to turn the motor over. The random intermittent failure to turn the starter over sounds like a failing starter relay. The starter relay directs power from the battery to the starter solenoid which then engages the starter when you turn the key. When this is not working properly, you may notice intermittent starting problems including no response when turning the key to start. Generally, when this does fail, it does so very randomly and usually without warning other than intermittent starting. The power from the battery will still power other accessories such as radio, horn, etc., but you may not have any power to the starter. I would recommend having an expert from YourMechanic come to your location to diagnose and inspect your vehicle.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1,000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Ask a Mechanic
(100% Free)

Have a car question? Get free advice from our top-rated mechanics.

Ask A Mechanic
Over 10,000 questions answered!
  1. Home
  2. Questions
  3. New Battery, New Alternator, Truck still 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: How do I change the folder with the steering wheel controls?

You can skip folders on an MP3 or WMA disc, or a USB device with the steering wheel controls. Press and hold the Up button for more than 1.5 seconds to skip to the next folder, or press and hold...

Q: Air suspension

What the dealership will do about this issue depends on what is stated in your warranty. The length of time the warranty exists is one part of it and what is actually covered under the warranty is the other part....

Q: Overheating - new radiator water pump thermostat sensor relay switch. Coolant was flushed 3 wks ago and its now purple 1995 Chevy Camaro

Hello - purple coolant is only used in large diesel engines, or an additive called "Purple Ice", which is a "wetting" agent - enhances heat transfer in engines. Despite all the new parts, the real cause of your overheating hasn't...

Related articles

P0052 OBD-II Trouble Code: HO2S Heater Control Circuit High (Bank 2 Sensor 1)
P0052 code definition HO2S Heater Control Circuit High (Bank 2 Sensor 1) What the...
What are the Car Pool Rules in Hawaii?
Hawaii is widely regarded as a land of vacation and relaxation, and as such, its scenic roads and routes are far better known than the state’s freeways. But, as with all...
How Much Does a Mechanic Make in Vermont?
Automotive technician jobs in Vermont have an average mechanic salary of $37k, with some mechanics earning a salary of $53k.