Skip the auto shop - Our mechanics make house calls

Q: Car not starting in temperatures over 80 degrees

asked by on

My car will not start if sitting in the sun in weather over 80 degrees. The battery is new and works fine. When sitting in the hot sun, the will not even click, turn over, or react at all. The stereo and all of the electrical devices come on. The car will start once the sun has set and had a chance to cool down.

Hi there. This can be a common issue that vehicles encounter when the temperature outside is warm or if there is a sticky starter solenoid. The solenoid will stick even if sufficient current is applied to its switch. I’d suggest having a certified mechanic from YourMechanic come to your location for a more precise diagnosis of the car’s starting issue in person. They will also be able to make the correct repairs for your vehicle once this diagnosis is made.

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!
  1. Home
  2. Questions
  3. Car not starting in temperatures over 80 degrees

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: Key turns freely in the ignition but won't start the vehicle. Accessory power remains on unless the battery is disconnected.

The ignition switch or linkage to the switch is broken. The ignition switch needs to have the small linkage from the back side of the key lock cylinder to turn the switch to start and run the vehicle. Have the...

Q: battery cable is too short to reach battery connection. Had to replace the connection because it broke off and now cable to short

You can purchase battery terminal ends with cables attached at most automotive part stores. You want to find the same gauge/thickness of wire or slightly larger. Then you'll need a lug or crimp fitting that matches the size of the...

Q: 2008 BMW Z4 alarm won't beep when locking but lights flash and red light blinks under rearview mirror

Hello. If the horn is working normally then you have a programming issue. In most cases the control module for the alarm will need to be reprogrammed by the dealer in order to make it operational again. If the horn...

Related articles

How Long Does a Distributor O Ring Last?
The distributor is part of the ignition system in your vehicle and its purpose is to route high voltage from the ignition coil to the spark plug. The spark plug then...
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...