Q: Q: Car won't start

asked by on

After pulling and checking fuses with light between battery+ post and cable to see if light went out to find circuit that has a ground fault no luck because problem is intermittent now car wont start. Checked and rechecked all wires and connections and all I could see. Any suggestions?

My car has 144600 miles.
My car has an automatic transmission.

Hi there! There first thing to check is your battery voltage. This can be done with a multi-meter. Simply place the red probe to the positive terminal and the black probe to the negative terminal, you should get at LEAST 12.5 volts for your car to start and 13.5 to 14.5 to indicate that your battery is charged. If you don’t have at least 12.5 volts, then the battery will need to be replaced.

Being that this is intermittent, keep the red probe on the positive terminal and place the black probe at the area of where the ground cable attaches to the engine (not on the ground cable itself). Check voltage, if there is any voltage drop the negative cable will need to be replaced.

If you have good voltage, do a wiggle test - simply wiggle the ground cable and see if that causes any change in your voltage reading. The starter can be removed and tested to make sure the solenoid is operating and if the started engages. If the starter solenoid is bad you will need to replace the starter . Also, if you still have power to all accessories, but it will not start, the starter relay may be bad. If you need help having this taken care of, a qualified professional from YourMechanic can come to your car’s location to diagnose the starting problem so that the right repairs can be performed.

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. Q: Car won't 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: What does the charging system Warning Light mean in a 2012 Toyota Corolla?

The charging system Warning Light is located on the instrument panel. When this light illuminates, the vehicle’s charging system is not charging properly. Your vehicle should be serviced immediately. Tip Like all warning lights, the charging system Warning Light...

Q: Car idles for a while and then shuts off

Hello. You will need to monitor the fuel pressure and spark plug spark at the plugs when the engine dies. I suspect you may have a defective ignition stator in the distributor. When you lose power, you should see the...

Q: My car will not start when the outside temperature is very cold

Several things can cause these starting issues. Is the vehicle attempting to crank over, or does the starter not engage to begin with? Always start by making sure all the electrical connections are clean, dry, and tight. Your particular make...

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...