Q: I left my car lights on. I jump started the car started it up and drove around for an hour or more. The car didn't turn on again

asked by on August 14, 2017

I left my head lights on. When turned the key over the dash oard lights didn't turn on neither did the car. I jump started car and drove around for a hour. Turned it off and back on car won't start lights are dim on dashboard headboard w.e but won't turn over

Battery is dead Inspection $79.99 - $99.99 Get a Quote
Car is not starting Inspection $79.99 - $99.99 Get a Quote

I suspect you have a faulty battery and I would start there. If the starter motor is not even cranking the engine, among the first possibilities is a weak battery, excessive voltage drop in the starter circuit due to poor electrical connections, or a dead starter/solenoid. Prior to performing diagnostics the battery should be load tested. With a battery in good condition and the immobilizer (security) system off, if the starter motor does not operate at that point, there are only two possibilities: 1) either there is no power to the starter motor/solenoid, or an excessive voltage drop, hence the entire starter circuit would have to be diagnosed; or 2) there is power but the starter/solenoid itself is bad and that includes intermittent operation which does happen. If you desire that a specialist from YourMechanic determine which of these is the issue, and get it resolved, please request a no start diagnostic. If you have further questions or concerns, do not hesitate to re-contact YourMechanic as we are always here to help you.

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


Experienced Mechanic?

Earn up to $70/hr

What others are asking

I talked to one a few days ago, I have a 2009 mercury mariner 6 cylinder

My car overheated and then eventually died. Now it wont crank and I have coolant all over my engine

Based on your description the engine was overheating and the overheating was accompanied by a large coolant leak. Please note that coolant leaks can be either a cause or a CONSEQUENCE of overheating. Therefore, once the leak is repaired, your...

I have a 2015 ford fusion with 58000 miles on it and was driving on the highway and a awful loud ticking noise I drove it home

Since you were running your engine low on oil you may have damaged all the crankshaft and camshaft bearings along with piston and cylinder damage. You would need to have the vehicle inspected by a mechanic like one from YourMechanic...

Low idle stalling out

This suggests that the low idle problem may be related to a faulty MAP sensor since the symptoms you describe point to the low idle issue when the engine is under a load when applying the brakes at idle. The...

Vacuum hose function.

Hi there. If there is a problem with your vacuum hoses, then they need to be replaced. If they are clogged, leaking, or just very soft then they need to be replaced as they can cause a series of running...

Brakes lock up during driving, if the car is stopped fast

Hello. If the vehicle has anti-lock brakes, then it should not lock up like this. This will only occur if there is a sensor problem with the vehicle. I would start by installing a scan tool that can read the...

Noise coming from the engine compartment followed by blown engine

An engine failure is definitely not good news. Engine failures can be caused by numerous things (e.g. low oil pressure, contaminants in the intake, etc.). Thankfully the 2007 Optima is covered by Kia’s 10 year, 100,000 mile power train warranty....

Power surge after I use the brakes

The issue you describe can be very dangerous for you and your passengers. I have read many instances of other owners having similar issues, some of which have caused accident that have led to injury(according to their statements). It looks...

Related articles

How to Replace a Car Window Motor/Window Regulator Assembly
Car window motors and regulators move car windows up and down. If the car window regulator assembly fails, the window will automatically drop down.
P0673 OBD-II Trouble Code: Cylinder 3 Glow Plug Circuit
P0673 means there are issues with a computer output circuit due to defective glow plug in cylinder 3, in a module or timer and in a relay.
10 Best Stores to Buy Auto Parts in Oklahoma City, Oklahoma
Automotive technicians rely on auto parts stores to add and replace car parts. The best auto parts shop in Oklahoma City is O’Reilly Auto Parts.