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Discussion Starter #1
When the car is accelerating to and staying at speeds above 75mph, does that have a negative affect on the a/c system or can it continue to run undamaged?
 

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97 Deville
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93 Posts
Well on my 97 Deville when i have the A/C turned on and i'm getting onto the interstate and i floor it so i don't get ran over by the semi's going from about 30-60 Mph the A/C plunges a little but once it gets to about 60 Mph it operates normal without anymore plunges. But i wouldn't say that it has a negative affect on the car. An example of what my A/C does it feels like if it goes from Auto to Low.
 

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White Diamond '03 DHS (with DTS floor shift)
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86,994 Posts
The compressor is disabled at WOT on the assumption that you want max available power. Other than that, I am not sure I understand the question.
 

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2003 STS w/BoseNav, 1993 Deville, 1985 Deville
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1,089 Posts
I'm also not sure what you're asking.

Why do you suspect that running the car over 75 or accelerating hard will damage the AC?
 

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77 CDV, 06 DTS III, 69 FWB
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10,022 Posts
Since the compressor is "on-demand" and not continuous, I don't see that the vehicle's speed is relevant to AC operation. I've cruised my ETC for hours on end at 80+ with the AC on and had no problems.
 
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