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Joined: Apr 2001
Posts: 156
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Can anyone explain why with the A/C on, our car seem to die out. At least mine does really bad.
Chris Reid 99 Black SVT #6330
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Joined: Mar 2001
Posts: 198
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Most car's experience a slight drop in performance when the a/c is engaged. It's not unusual. With the a/c on the motor is driving an extra accessory, the a/c compressor. The more things the engine has to drive, the less power it has left to send to the wheels.
The power loss in smaller cubic inch engines is *generally* more noticable. SVT's have a relatively small V-6 (153 cid).
98.5 Silver Frost SVT #5260 Born on 3/25/98
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Joined: Jul 2000
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If you notice a significant loss of HP, you may have other problems. Are your secondaries opening OK, and is your intake / EGR circuit clean?
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Joined: Jan 2002
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When my AC clicks on, my car comes to a crawl as well. And it doesn't help living at altitude either!
From what I've read, Ford's AC compressors are very inefficient. My brother has a similiar problem on his new Focus as well.
Tim '00 SVT
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Joined: Mar 2002
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Yea man, sorry to say, but get used to it. My car is a total dog when the A/C is on... especialy when I am starting from a light to about 4k RPM, at that point, my IMRC opens (when it feels like it) and the power lost is kinda' gained back.
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Joined: Apr 2001
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But it's so damn embrasing. I actually need to gun it up to 2k RPM's to start from dead stop!
Chris Reid 99 Black SVT #6330
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Joined: May 2000
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Most newer cars have it set up that when the gas is hit all the way down the compressor kicks off, that way you have your performance.
Roger R SVT/SHO Society SE MI rep 2000 CSVT #1253 of 2150 silver frost/midnight blue 2-8" dark blue racing stripes Mequiars...simply the best! "...and number 5, now this is the most important Rat, when it comes to making out, whenever possible, put on side one of Led Zeppelin 4" USMondeo@aol.com
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Joined: Aug 2000
Posts: 82
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It could be a low charge of Freon. The compressor has to work harder when that happens. I had a fast leak (a week to empty) on my A/C, and the car got way slower when I was trying to run the A/C as it leaked out. Fixed and recharged, the A/C power loss is hardly noticable again.
'99 Contour SE Sport V6, 5spd, Dark Blue / Blue
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