How JustAnswer Works:
  • Ask an Expert
    Experts are full of valuable knowledge and are ready to help with any question. Credentials confirmed by a Fortune 500 verification firm.
  • Get a Professional Answer
    Via email, text message, or notification as you wait on our site.
    Ask follow up questions if you need to.
  • 100% Satisfaction Guarantee
    Rate the answer you receive.
Ask Cary York Your Own Question
Cary York
Cary York,
Category: Mercury
Satisfied Customers: 149
Experience:  Auto Tech at Certified Auto Repair
Type Your Mercury Question Here...
Cary York is online now
A new question is answered every 9 seconds

2000 Mercury Mountaineer a/c blows cold while idling or at

Customer Question

2000 Mercury Mountaineer a/c blows cold while idling or at low speeds, but under acceleration and/or highway speeds it blows hot. I've pulled the actuator door out and it's working. I've also put a new one on to confirm they are moving the same directions on the same temperatures. I ran the self test you described and no error codes come up. Any thoughts about this?
Submitted: 3 months ago.
Category: Mercury
Expert:  Cary York replied 3 months ago.

Has anything been done to the Freon level? How long have you owned the vehicle? Have you can A/C problems in the past?

Customer: replied 3 months ago.
I have not had the Freon levels checked lately. I've owned the vehicle since January 2006. Only A/C problem in the past was a failed actuator door.
Expert:  Cary York replied 3 months ago.

Is the compressor any noisier than normal?

Customer: replied 3 months ago.
It doesn't seem to be noisier. It's always had a slight ticking sound when the A/C is running, but does not seem to have gotten worse.
Expert:  Cary York replied 3 months ago.

What happens if you are sitting at idle and A/C is cold, then you turn the temp up. Will it get hot at idle?

Customer: replied 3 months ago.
when sitting at idle and the temperature is turned up to hot the air does blow hot.
Expert:  Cary York replied 3 months ago.

I believe you have a pressure issue. If the Freon level has not be changed I would suspect a component failure. Does not sound like low Freon level. Sounds like clogged orifice tube. Possibly caused by failing compressor. Are you planning on fixing yourself? If so you will need a set of A/C gauges. Once you get some A/C gauges we can talk by phone.

Customer: replied 3 months ago.
I haven't ever tried to mess with any of the A/C stuff that requires a gauge, but I might go get a set of them and give it a shot. If it's clogged orifice, does the system have to be de-pressurized or is it something that can be cleared using a procedure with the gauges?
Expert:  Cary York replied 3 months ago.

You would have to break the system open. You would lose the Freon and you would have to recharge it. But if I had gauge readings I could give you a better idea of what's happening.

Customer: replied 3 months ago.
Ok, thank you.
Expert:  Cary York replied 3 months ago.

Please leave a rating of your experience. Thank You

Related Mercury Questions