Q: No power at all

asked by on July 28, 2016

Noticed truck was having a weak start. Few days later it wouldn't turn over so I tightened positive battery connection (was slightly loose). Problem continued so I bought new battery. Truck cranked and got me to work. Got off and had to use jump box to start truck. Now I have no power at all. Doesn't even click when trying to start. No lights, automatic locks, nothing. I've cleaned the connections. Guy at Napa told me to try replacing the fuse. Changed one of the amg 175 fuses on the passenger side battery and still nothing. Checked the ground connections, fine. The battery cables do have a separation where wire is exposed but best of my knowledge it's always been like that. Could it be the solenoid, starter, or what? Thanks

Check the voltage at the battery terminals for 12 volts at rest. While cranking the voltage shouldn’t drop very much, about 10 volts. Jump the vehicle and observe the voltage while it’s running. If the voltage isn’t above 13.5 volts, the alternator or alternator circuit may be at fault. I’d suggest getting this checked by a certified technician, such as one from YourMechanic, to diagnose the issue with your battery and narrow down the variables. From there an accurate repair can be carried through. Good luck.

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

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

95 camaro shuts off while driving

It sounds like you may have a weak battery, a failing voltage regulator or failing alternator. As you may know, the alternator charges the battery while the engine runs by generating amperage and recharging the battery while the engine turns...

How Long Does a Car Battery Last?

Whether you drive a vehicle for work or roaming around town running errands, one constant reality is that we all depend on our car's battery to start the vehicle on the roads we travel. However, one of the frequently asked...

2011 impala speedometer up & down while idling, car cuts off at low lidle

I think you mean that the tachometer is going up and down, not the speedometer. If the tachometer is going up and down and then the engine stalls, it's an indication that the engine has a major vacuum leak...

Related articles

How To Jumpstart Your Car
A how-to guide to jumpstart your vehicle in the event of a dead battery. You'll need jumper cables, safety glasses, and a properly starting car.
How to Check the Voltage of a Car Battery
There are few things more frustrating than discovering that your car won’t start because the battery is dead. A mechanic can measure...
Symptoms of a Bad or Failing Auxiliary Battery
If you have multiple batteries in your vehicle, you may have to replace one if the vehicle won't crank, fluid is leaking, or the Battery Light is on.