HAS ANY ONE EXPERIENCED ENGINE STUDDER WHILE IDELING WITH THE A/C ON. THIS ONLY HAPPENS WHEN A/C COMPRESSOR IS ON. I AM THINKING MAYBE COMPRESSOR GOING BAD.

 

Sounds to me like your engine idle is not set to specs. To low of an idle will cause the symptoms your having.

 

I just wish I was running the AC at this time of year! :'(

 

[quote author=TPilaske link=board=5;threadid=7003;start=0#66429 date=1037236446]<br>I just wish I was running the AC at this time of year! :'(<br>[/quote]<br> Sissy! wear a jacket and crank that thing up till you get icicles hanging off your nose ;D<br><br> Livewire I agree with Okie check that idle speed.

 

[quote author=TPilaske link=board=5;threadid=7003;start=0#66429 date=1037236446]<br>I just wish I was running the AC at this time of year! :'(<br>[/quote]<br><br>On my '02, the AC does run when you have it in defrost mode.<br>I think the owners manual addresses this as well.<br>You can hear the AC clutch engaging and disengaging.<br><br>It's one thing I don't like about the truck, AC is on when on &quot;vent and feet&quot; as well.<br><br><br>phox

 

There are two reasons that I know of that these units are set up to run with the heater. First of course is that the mist on the windows is knocked off rapidly, but second, in early years there were many problems with the AC compressors after sitting all winter without running. The seals would go bad. So adding air to the defrost cured the problem. The dodge also runs it whenever the dash vents are on.<br><br>I cannot tell a difference in mileage between the air on or off. As a matter of fact I run the air with heat a lot of the time because of the comfort of dry air. It also keeps you awake on long trips. I use the floor/defrost with heat a lot of the time.

 

Just a comment, three or four nights ago, I woke up all sweaty in a truck stop. It was 80 degrees all night. Hense the tornados, it is going to 36 tonight, that happened in about eight hours.