Q: Why does my car overheat at idle

asked by on April 03, 2017

Car overheats at idle or a stop light Car overheats when driving without the heat on Added oil Added transmission fluid

My car has 103480 miles.
My car has an automatic transmission.

Your car is only three years old and so should not need transmission fluid. If the level was low, you should check to be sure there is not a leak. It’s very easy to overfill the transmission so it would be a good idea to double-check and be sure the level is not above the maximum line when the transmission is hot (no more than fifteen miles of driving).


Overheating at idle can be caused by a low coolant level, a faulty thermostat, a plugged radiator, a faulty radiator pressure cap, collapsed hoses, non functioning cooling fans, and a faulty water pump or drive belt. Certain engine faults, such as a leaking head gasket or poor engine running condition can also cause overheating. If you desire that this problem be diagnosed by a certified Mechanic, dispatched by YourMechanic right to your location, please request an engine overheating diagnostic and the responding certified mechanic will get this resolved for you. If you have further questions or concerns, do not hesitate to re-contact YourMechanic as we are always here to help you.

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

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

Transmission shudders when accelerating from a stop

This may be related to a faulty transmission control solenoid or low transmission fluid. As you may know, automatic transmissions use pressurized hydraulic fluid to change gears. When a gear change is required, the car's computer activates a transmission solenoid,...

2008 Honda Accord not accelerating and VSA and check engine lights are on and the code reads p0339

Hi Garrett. Thanks for contacting us today. The Vehicle Stability Assist light shouldn't impact the vehicle's ability to accelerate unless a limp mode has been triggered and activated due to a malfunction of the system. This might be the source...

Why is my steering wheel and gas pedal locked?

This is a common issue with the Honda CRV. Occasionally, the steering wheel will lock like this when the gears in the steering become slightly misaligned. I have seen this remedied by physically rocking the vehicle back and forth until...

Related articles

Symptoms of a Bad or Failing Electronic Ignition Pickup
If your car has an electronic distributor ignition system and the engine stalls or car does not start, you may have to replace the ignition pickup.
A Buyer’s Guide to the 2012 Dodge Charger
If If you’ve always loved driving performance cars but you don't know how you’ll fit a baby seat in a Mustang or a Camaro, the 2012 Dodge Charger could be the car for you. While it has the room and...
Symptoms of a Bad or Failing Fan Clutch
If your car has a fan clutch, common signs include the vehicle overheating, the cooling fans working very loudly, or engine performance decreasing.