Skip the auto shop - Our mechanics make house calls

Q: Truck won't start in morning. 2nd day now. Battery seems good.

asked by on

Truck works fine when I parked. Next morning, no power in truck. Keyless remote wouldn't work. I used key to enter & truck started up. Worked fine all day. Parked again overnight. Next morning no power again. Once again, keyless remote didn't work. I used key to enter but this time the turck would not start. I tried to jump start it but when positive terminal was touched by jumper cable, horn started blaring. I only touched the positive terminal with jumper cable. Truck then started normal and ran all day. Today, keyless remote worked and truck started as normal. Clock on radio looked as if it had no power until truck started as it was flashing 12:00. I had Midas test the battery yesterday. They said the battery was ok but replace it to rule out that issue. Battery is Optima Yellow Top, 2 years 8 months old. It has never died before now. I tried to buy new battery but store has to order it. I am still using same battery. Is this a battery issue or something else?

Since the symptoms changed when you touched the battery terminal, it leads me to believe you may have a poor connection and the main battery terminals. If they are badly corroded or have any small cracks, the terminal may be too loose on the battery. You can rule out the battery by removing the connection to the vehicle then testing the battery itself. If the battery is good then reattach the terminals, tighten them and see if you are able to wiggle them on the posts. If the terminal still moves, replace the entire cable. You can cut the terminal ends and replace them, but you will never get as perfect a connection as replacing the whole cable. Consider hiring an experienced technician like one from YourMechanic who can come out and take a closer look at the loss of electrical power situation and run tests to offer a more personal diagnosis.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1000 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!

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: Whining during acceleration with high RPMs, in lower gears and overdrive

I agree with the mechanic that checked it. It needs to have the transmission overhauled. I cannot make the decision if you should get it done or not, since it is a very expensive repair and may exceed the value...

Q: When power steering pump cap is removed should there be a slight presure release

You should have the power steering reservoir cap checked to make sure the vent on cap is not blocked. Also make sure the system is bled of excessive air in the system. Once these two things are checked then you...

Q: Intermittent starting issues (takes a couple of cranks to start) & throttle surge

Hi there. From the description you have provided of your vehicle's starting trouble and throttle surge, it looks like you have already tried replacing many parts on the car.Replacing parts without a diagnosis can be expensive and time consuming without...

Related articles

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...
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...
P2428 OBD-II Trouble Code: Exhaust Gas Temperature Too High Bank 1
P2428 code definition A P2428 trouble code signifies that the PCM has detected a problem in the exhaust gas temperature sensor circuit in bank 1, which subsequently contains the number one...