Last post on Aug 27, 2011 at 8:26 AM
You are in the Buick LaCrosse
What is this discussion about?
Buick LaCrosse, Sedan
Jul 10, 2011 (1:41 pm)
May be option on some levels.
I thought I found the way it was supposed to work when in a CXL loaner. It was so much better. A full five seconds to get in. Also it did not do the stupid "move the seat" if driver door was open and D/S rear door was opened.
I got mine back and it is as before or worse. I often went to the far side of vehicle so the seat would not move ahead when putting or retrieving something from the vehicle.
The dealers answer, or really GM's answer, is to make them all alike, stupid or not. According to dealer, the tech is told to compare to a newly received vehicle and then go from there according to their directions. Yes GM, the idiots who made it stupid in the first place.
The worse? Yesterday, upon arriving at our destination, my wife got out and just as I got out, she opened rear door on passenger side and my GD seat moved ahead. In what world could anyone think that proper? So of course when I get back in I have to fool with buttons to position it. GM SUCK
#87 of 87 AC not cooling like it was?
Aug 27, 2011 (8:26 am)
Check your CAF first. I have not been driving any dirty dusty areas. By 10K I noticed that the airflow was diminished with full automatic setting. There is a dusty looking area covering the center of the filter and that is apparently enough to restrict flow.
Perhaps there are better filters on the market that use more media, surface area.
I like the idea that they decided to filter the inside air, but it will require far more filters than they suggest. I usually set mine to recirculate manually, so of the 10K likely at least 8K were recirculated air, unless there is some sort of defeat when using heated air or defrost.
If driving dusty conditions, I'd say you need to consider 3K a change point. That is unless you consider an early death of the fan motor insignificant. GM had some notice involving restricted air flow and motor.
Also I would consider it paramount when checking AC system. If you are not getting full flow across evaporator, you can not get correct readings.
BTW, pressures are not the correct way for charging systems with expansion valve which I'm told this vehicle has. There are two methods, weighing in the exact amount of freon, and what is called "approach temperature". The "approach temperature is determined by the system manufacturer and works best at temperatures approaching maximum outdoor operating temperature. The proper amount of freon is reached by adding the approach temperature to the ambient temperature and then measuring the temperature of the liquid line after the condensor. The expansion valve will operate mainly according to the temperature at the evaporator. That is it should be putting the best amount of freon into the evaporator to maximize cooling.