Q: AC not working correctly

asked by on January 22, 2016

The AC in my car comes out colder on the passenger's side when compared to the driver's side, and is putting out hot air through the floor vents. The auto store person mentioned that it might need a modulator. I also have a slow oil leak.

Hi. When air comes out of the vents at uneven temperatures, the blend door actuator is usually at fault. Either debris buildup is blocking the door from moving or the electronic actuator on the door itself is malfunctioning. A technician can usually spot the actuator if they look into the dashboard while someone is operating the AC controls. Have a mechanic inspect the AC system in your vehicle to eliminate further complications. Also, most oil leaks originate from the valve cover gasket or oil pan gasket. I strongly suggest having a training technician inspect the engine seals for leakage.

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

Engine code P0430 and losing oil

Diagnostic Trouble Code P0430 means that the ECU is detecting below threshold performance from the catalytic converter. The ECU monitors the catalytic converter closely and when a low performance threshold is detected the Check Engine Light will be displayed on...

AC leak

If you have a leak in the AC system then that needs to be repaired. Most of the time an AC leak appears by way of an oily residue on the hoses or connections. Once the leak is repaired, the...

Symptoms of an AC condenser going bad.

The condenser if it was not cooling properly, will cause the switch to shut off the A/C, and then once it cools enough, will allow the A/C to come back on. It would be hard to know if connection was...

Related articles

Is it Safe to Drive With a Vacuum Leak?
A leak is the most common problem with the vacuum system. If the vacuum system in your vehicle is leaking, your vehicle...
Why Does the Air Coming Through My A/C Vents Smell Bad?
Over time your car A/C system can start to smell unpleasant. If your A/C system smells bad check for mildew in the vents or install a new air filter.
How to Replace an AC Accumulator
The accumulator in the air conditioning system is faulty if there is rattling inside of it or there is a moldy smell emitting from the AC system.