Air conditioning not working on passenger side mercury 20...

Q: Air conditioning not working on passenger side

asked by on February 04, 2016

When the air conditioning is on, hot air will occasionally blow on the passenger side.

Hello, this is a common problem on your vehicle. If the air conditioning seems to work fine at times and then suddenly blows hot, the problem is almost always the blend door actuator on the passenger side. This actuator moves one of the doors under the dash that changes the directions of the air depending on what temperature you want the air to be. When the actuator fails it can move when it is not supposed to and that will change the air temperature. Some of the dashboard will need to be disassembled to access it. If you are not comfortable with this then you should enlist the help of a certified mechanic to diagnose and repair your air conditioning.

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

Gap between car stereo and dashboard

Hello. While DIN and Double-DIN standards specify height, width, depth, etc. of audio equipment packaging standards, it does not take into account any trim dimensions - which may not be the same for all manufacturers. I would check back with...

Air blowing warm

If there is an oily residue on one of the sides or corners of the condenser, then there is most likely a leak in the AC system. The system will need to be recovered, and leak-checked, to be sure. The...

i heard yo mu had to replace the wheel hub if the wheel bering damages is tht true

If wheel bearing is in need of replacement on this vehicle then you will need to replace the entire hub assembly with it since it comes as an assembly incorporated with the speed sensor.

Related articles

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.
Symptoms of a Bad or Failing AC Clutch Cycling Switch
If your AC is not blowing air as cool as usual or is not working at all, you may need to replace your AC clutch cycling switch.
How to Buy a Good Quality Heater Blower Motor Resistor
Vehicles Vehicles that are equipped with a manual HVAC, or climate control, system utilize a blower motor resistor to control the speed of the heater blower. If you are driving a minivan or an SUV with a separate rear passenger...