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Discussion Starter · #1 ·
I went on a trip this weekend and I was driving down the interstate at about 70 mph when I started noticing that every 10 to 15 seconds, I would have a drop in power. It wasn't a huge drop, but it was similar to when you're driving down the road and you turn your A/C on. At first I thought it was the cruise control messing up, so I turned that off. That didn't work, so I turned off the A/C. That made it stop having power drops. It doesn't seem to do this until the car warms up and I hadn't had this problem before the weekend.
Have you guys ever run into this problem? Am I looking at a compressor problem or do I merely need more freon put in my A/C?
 

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I went on a trip this weekend and I was driving down the interstate at about 70 mph when I started noticing that every 10 to 15 seconds, I would have a drop in power. It wasn't a huge drop, but it was similar to when you're driving down the road and you turn your A/C on. At first I thought it was the cruise control messing up, so I turned that off. That didn't work, so I turned off the A/C. That made it stop having power drops. It doesn't seem to do this until the car warms up and I hadn't had this problem before the weekend.
Have you guys ever run into this problem? Am I looking at a compressor problem or do I merely need more freon put in my A/C?
Your AC does normally sap some power from the car (all accessories do), and since it has a clutch, you can sometimes feel it when it cuts in and out. If the AC is cooling properly, adding freon won't do anything. If the compressor is failing (and causing a problem), you again will lose the cooling power of the AC as one of the symptoms.
 

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Discussion Starter · #3 ·
Your AC does normally sap some power from the car (all accessories do), and since it has a clutch, you can sometimes feel it when it cuts in and out. If the AC is cooling properly, adding freon won't do anything. If the compressor is failing (and causing a problem), you again will lose the cooling power of the AC as one of the symptoms.
Yeah, I know that the A/C sucks down power, but you can usually feel the drop when you first turn it on. My car was having a drop in power every 10-15 seconds and then it would go back to normal. The intervals of power droppage was like someone was turning the A/C on and off. That's why I think something is up. I haven't had it for very long and I try not to use the A/C very often, so I'm not sure if it has lost any cooling power or not. I'll probably take it in and get it checked out. Thanks for the help.
 

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It's perfectly normal. It's just the A/C cycling on and off.
My 02 GT used to do the same thing.
 

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I refuse to run the heater or AC for this exact reason.
 

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my 96 GT does the same thing, and is exactly as you described. Turn the vent on and no more problem, turn the AC back on and it starts again.
 

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Discussion Starter · #8 ·
My main fear was that it would mess something up or turn into something major. I don't want to be paying for a new A/C compressor down the road. So you guys think it's just a minor issue that GT's seem to have?
 

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perfectly normal, Mine does the same thing, I won't run my AC because it robs power and it sucks up more gas. I even brought it in to the dealer and they said the same thing prefectly normal, i wouldn't worry about it!
 

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My car was low on refrigerant.....

My car did something similar recently but I for sure was noticing that it wasn't blowing cold air also. When I checked things in the garage the compressor was cycling on and off every 5 seconds or so. I got a kit at the local Kragens that consists of a can of refrigerant and a pressure gauge/hose(on sale $22) and filled it myself. As I added the refrigerant the cycling time got longer(A/C stayed on longer) and eventually got to the point where it stayed on continuously(max A/C and fan--doors and windows open to force A/C to stay on). You can use the pressure gauge to check the fill before you add anything. When I got done I was getting better than a 40 degree drop from ambient. The constant cycling went away also.
 
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