I have a 2005 ford focus,the a/c gets cold fine but then turns warm and then cold again anyone else w/ problem

Question

the dealer said this is normal but a ford expert said it is not .happens more on a very hot day this happens all the time when driving

Answer 1

Take it to a different Ford Dealer, it sounds like the service department that you took it to doesn't like to work.

Answer 2

Mostly when sitting, right? Temperature and pressure are relative to each other, it blows warm because the high temperatures outside cause an increase in pressure in the system, causing the binary switch in the system to turn off the compressor to protect the system. When the pressure drops to within safe limits, it comes back on. Cures include checking the electric fan for correct operation, cleaning the condensor outside (the a/c radiator in front of your radiator) with high pressure water, the condensor inside (an a/c shop can flush it)the evaporator (the a/c radiator in your dash), and having the entire system checked by a tech to determine that it's charged with the correct amount of freon at the right pressure. Too much freon will build too much head pressure at the compressor, wearing it out prematurely.

Answer 3

I'd say take it to the dealer again and tell them that a ford expert said it's not normal. The car is under warranty so you could always call corporate and tell them that your dealer won't fix the car.

Answer 4

are the cycles very short or long lived. If they are short it is normal, if they are long then there is an ice problem. Ice is caused by your thermostat not working. The thermostat creates the short cycles that are normal. Without them, you get ice which prevents air flow over the coils.

Answer 5

Go to automotiveforums.com... You'll find the solution to your problem!