Q: Q: Car won't start in cold weather

asked by on

My Hyundai Elantra doesn't start when the weather got colder, which means it was starting before. I checked the car battery with a multi-meter and got a voltage reading of 12.6V. I jumped started the car, but also didn't work. I put some gas line antifreeze, in case something is frozen in the gas, but didn't work either. Any ideas of what the problem can be?

Thank you.

My car has 174000 miles.
My car has an automatic transmission.

Hello, thank you for writing in. There are a few more basic things to try before worrying too much. One of the main issues is that occurs in cold weather is that weaker components really struggle. One of the most critical for starting is the fuel pump. A very simple step you can do is to turn the key to the "On" position for around 15-30 seconds before attempting to crank over the engine. This gives the cold and heavily used fuel pump a chance to prime before the engine demands it to work. You may also want to help the engine by using a good oil for winter time. Also for winter time, you should make sure your coolant is in good condition and has a low freeze point. Older coolant can loose these properties. Prime the pump before starting and see if that helps. If it does, you may consider switching out the pump.

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 in cold weather

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: Speedometer and gas gauge not working

This may be related to a short or a faulty instrument cluster voltage regulator. The instrument voltage regulator regulates the voltage supplied to the various gauges in your vehicle’s dash. When this is not working properly, this may cause the...

Q: Hi! I turned the ignition on on/run. my car ran reversely from drive way to the street. I can't stop it until I pulled the break.

Hi Bluesky. Thanks for contacting us today. This is a very odd series of symptoms, but most likely due to the excessive water and standing water during a hurricane. The excessive water often plays havoc on electrical connections and sensors,...

Q: Car starts but dies a few seconds later. If I give it any throttle when it does start it kills the engine.

As a general rule, car engines do not like cold weather and do not do operate as well in cold weather. When you start your car in the morning and turn the key to on, the coolant temperature sensor immediately...

Related articles

P0240 OBD-II Trouble Code: Turbocharger Boost Sensor B Circuit Range/Performance
P0240 code definition Turbocharger Boost Sensor B Circuit Range/Performance What the P0240 code means P0240 is an OBD-II generic code triggered when the Engine Control Module (ECM) detects the intake boost...
How to Avoid Back Pain in a Car
If you have back problems, sitting in a car for an extended period of time can be excruciating. Even without back problems, you could experience discomfort and soreness from...
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.