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  #25  
Old 08-10-2009, 07:44 PM
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Re: how hot does your engine get>

That temp is right around 200-205 degrees.

The AC and engine coolant are two totally seperate systems. Your engine uses a radiator and coolant to maintain temps. Your ac using R-134a refrigerant, basically like a window unit. Your engine gets slightly hotter when you run the ac because of the heat that is being dispersed from the coil in the engine bay. The car feels sluggish from the ac running because your engine powers the compressor, which is the heart of the ac.

Refrigerant does not get "used up". It is a closed cycle system. If you ever have to add 134a to the ac, then there is a leak somwhere.
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  #26  
Old 08-10-2009, 07:47 PM
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Re: how hot does your engine get>

Quote:
Originally Posted by mzh29 View Post
That temp is right around 200-205 degrees.

The AC and engine coolant are two totally seperate systems. Your engine uses a radiator and coolant to maintain temps. Your ac using R-134a refrigerant, basically like a window unit. Your engine gets slightly hotter when you run the ac because of the heat that is being dispersed from the coil in the engine bay. The car feels sluggish from the ac running because your engine powers the compressor, which is the heart of the ac.

Refrigerant does not get "used up". It is a closed cycle system. If you ever have to add 134a to the ac, then there is a leak somwhere.
I prolly sounded like an idiot asking that question, but thats why I joined a forum to learn and ask about things I dont know.

Thank you MATT, greatly appreciate it. I learned something new today. +rep for you
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Old 08-10-2009, 07:56 PM
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Re: how hot does your engine get>

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Originally Posted by EZY View Post
I prolly sounded like an idiot asking that question, but thats why I joined a forum to learn and ask about things I dont know.

Thank you MATT, greatly appreciate it. I learned something new today. +rep for you

No problem, alot of people i deal with at work have this belief that it's normal to add freon to their ac. When I get out there and they have already "diagnosed" the problem that they need a "charge" of freon. Then when I have to break it to them that there is no guarantee on how long the freon will last because there is a leak in there system somewhere they are surprised. And freon = expensive.

And thanks for the + Rep, i was viewing a different thread and i saw i was up to 16, took me by surprise. lol.
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  #28  
Old 08-10-2009, 08:29 PM
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Re: how hot does your engine get>

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Originally Posted by EZY View Post
Totally clueless on the temperatures.

Is this normal? Took this today, it was 90+ degrees with the ac running on the first notch. 1 passenger. When I'm at a full-stop, the vehicle is kinda rumbly LOL. idk. Help..


Same here today, 90* humid a/c on all day in city traffic (well not city like yours)

Try adding a 1/2 qt of tranny fluid to the jeeps tranny atf+4, and that should stop the rough idle, it stopped my rough idle and my stalling issue.
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  #29  
Old 08-10-2009, 11:53 PM
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Re: how hot does your engine get>

Quote:
Originally Posted by AcidCold View Post
With my 180 stat, i get 3/8's on the gauge so 180.
same! with ac about 187
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