Q: I have a 2011 Chevy Aveo LT. When I have the AC on at idle the vehicle overheats. What could be some things to look at? The radiat

asked by on June 20, 2017

My car overheats at idle with the AC on. The vehicle starts idling rough as well. The coolant looks due for a change, but the fan is running strong. These issues are not present during highway travel. Also noticing that the vehicle accelerates slower from a stop light than it should it really sluggish from the line then picks right up. Any incite would be appreciated. Also not sure if it's a symptom or not, but fuel consumption is a little higher as well.

My car has 108000 miles.
My car has an automatic transmission.

Cooling System Flush $178.82 - $215.42 Get a Quote
Car is overheating Inspection $79.99 - $99.99 Get a Quote

Hi there. An overheating problem while idling could be caused by multiple issues, ranging from sludge that is clogging the coolant lines, to a radiator fan that is not activating as well as it should. It is also possible that your coolant has more water than coolant. It’s recommended to have a 50 / 50 ratio of coolant to distilled water for optimal cooling. If the vehicle is due to have coolant system flushed, I would start with this and see if it resolves your problem. Otherwise, it would be recommended to have a professional mechanic complete an overheating inspection to determine why this is happening.

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

When I poor coolant into my BMW radiator it emptys right away and there is no leaks

If you keep pouring in coolant and it is disappearing without any external leaks after two gallons of coolant then you have an engine problem or heater core is leaking into the a/c housing. Check inside car to see if...

Engine code p0430

It may be possible that the fuel tank fuel injection additive has caused the catalyst to not be able to clean the chemical you put in out of the exhaust stream causing the catalyst sensor to not work correctly. As...

Power window not working

A diagnostic inspection should be carried out to check whether or not the window motor and switch have the correct power and grounds needed for proper operation, as either could have burned out or failed in some way. Also the...

Related articles

A Buyer’s Guide to the 2012 Chevrolet Impala
A A true classic, the 2012 Chevrolet Impala may not have all of the latest high-tech features of other sedans on the market, but it is a tried-and-true model with lots of room, plenty of comfortable features, and a large...
The Best Used Cars to Buy If You Just Retired
Here’s Here’s a cruel, hard fact – car manufacturers no longer target seniors. Instead, they devote their time and energy to appealing to the 18-45 demographic. Still, some features make certain cars more suitable for older drivers. We have...
A Buyer’s Guide to the 2012 Chevrolet Malibu
While While many people thought that Toyota and Honda had taken over the mid-size family sedan market with models like the Camry and the Accord, Chevrolet surprised the whole market with the Malibu. Available with either a four- our six-cylinder...