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Anybody have this problem?

This is a discussion on Anybody have this problem? within the General Help forums, part of the LSx Technical Help Section category; This is my first M6. My other two TA's were autos. When I get into high RPM's (5000-6000) my A/C ...

  1. #1
    Junior Member Tampa T/A's Avatar
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    Anybody have this problem?

    This is my first M6. My other two TA's were autos. When I get into high RPM's (5000-6000) my A/C blows warm for a few seconds, then goes back to cold. My auto cars never had this problem. Has anybody had this happen to them? Could it be a belt problem?

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    Member 00ls-1's Avatar
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    not sure what the problem is but its hard on the compressor to run that high of rpm

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    Senior Member Too Fast's Avatar
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    No, it is normal operation. The PCM shuts off the compressor at high engine load/high RPM. To give the driver full power, and to not spin the compressor into oblivion. Surprised you didn't notice it with your AT car, I did in my AT equipped 1998 Trans Am.

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    BANGIN GEARS>STAB N STEER BLK2KSS's Avatar
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    Please donít quote me on this because I do not know if it is true but I have heard that the compressor actually shuts down on wide open throttle anyway so it could be from this.

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    Quote Originally Posted by Too Fast View Post
    No, it is normal operation. The PCM shuts off the compressor at high engine load/high RPM. To give the driver full power, and to not spin the compressor into oblivion. Surprised you didn't notice it with your AT car, I did in my AT equipped 1998 Trans Am.
    beat me to it... I guess it is true,

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    Senior Member Too Fast's Avatar
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    ....posting at the same time....

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    It's set to turn off at around 4300 and turn back on at 3950 or at WOT.

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    Quote Originally Posted by Ed Blown Vert View Post
    It's set to turn off at around 4300 and turn back on at 3950 or at WOT.
    To add to this, if unchanged from stock tuning, the PCM unlocks the a/c clutch @ WOT too. I have mine tuned to disengage @ 4k rpm and 80% throttle.

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    Junior Member Tampa T/A's Avatar
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    Thanks everyone.

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    Senior Member Lunatikgixxer's Avatar
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    lol i learn something new everyday on this site. I never knew this since i always have the AC off when i go fast.

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    Member 00ls-1's Avatar
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    Same here ^

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    Exalted Cyclops 67CamaroRSSS's Avatar
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    The AC compressor turning off at WOT is what allows me to run the car here in PHX during warmer weather.

    While waiting in the staging lanes with the helmet on it get's warm; AC helps keep me cool; I get to the line and punch it and the compressor turns off.

    One of the miracles of modern performance cars. I couldn't do this back in the day...
    67 Camaro: K-K + 797-z (look it up), 454/Th400/4.10 12-bolt = 6mpg, PS/PDB/PW tilt, tach, gauges...

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    2002 Z28: NBM/Tan, MTI smooth lid, smooth bellows, !AIR, !cats, 1-3/4" QTP SS LT's, 2-1/2" TD's with X-pipe, MagnaFlows dumped at axle, custom welded SFC's, MidWest Chassis body mount adjustable T/A, 3400 stall, 3.23 gears (was 2.73). Tuned: 343rwhp/357rwt (before TD's). Best: 12.559 @ 108+, 1.73 60' @ 3500' DA w/MT ET Street DR's.

    Carbon footprint? CLOWN SHOE!

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    Smiles for 9.5 Years cammed goat's Avatar
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    Quote Originally Posted by 67CamaroRSSS View Post
    The AC compressor turning off at WOT is what allows me to run the car here in PHX during warmer weather.

    While waiting in the staging lanes with the helmet on it get's warm; AC helps keep me cool; I get to the line and punch it and the compressor turns off.

    One of the miracles of modern performance cars. I couldn't do this back in the day...
    Yah. I remember when I raced my previous car and the GTO. The announcer would tell us to roll up our windows, turn our radio and A/C off before our run. Staging at track+100* temps=FFFFFFFFFFFUUUUUUUUUUUUUUUUU

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    Exalted Cyclops 67CamaroRSSS's Avatar
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    Quote Originally Posted by cammed goat View Post
    Yah. I remember when I raced my previous car and the GTO. The announcer would tell us to roll up our windows, turn our radio and A/C off before our run. Staging at track+100* temps=FFFFFFFFFFFUUUUUUUUUUUUUUUUU
    Leaving the AC on also tends to drip condensate on the launch pad.

    As you well know, getting water on the concrete launch pad is a big time Bozo No No....

    It really pisses me off when I see guys (especially front wheel drive cars) drive thru the water box. All they are doing is dragging water onto the launch surface - an extreme NONO!!!!!! Not to say what's dripping onto the launch surface while they are staging...

    And yes, I turn off the AC when I come up in the staging lanes and I drive around, and then back up into, the water box.

    I've been doing this for a few decades and I've learned the protocols...

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    Member 00ls-1's Avatar
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    Quote Originally Posted by 67CamaroRSSS View Post
    Leaving the AC on also tends to drip condensate on the launch pad.

    As you well know, getting water on the concrete launch pad is a big time Bozo No No....

    It really pisses me off when I see guys (especially front wheel drive cars) drive thru the water box. All they are doing is dragging water onto the launch surface - an extreme NONO!!!!!! Not to say what's dripping onto the launch surface while they are staging...

    And yes, I turn off the AC when I come up in the staging lanes and I drive around, and then back up into, the water box.

    I've been doing this for a few decades and I've learned the protocols...
    thats how i do it too... i wouldnt piss you off i guess ive never seen anyone leave their ac on but now i guess reading these people do do it

  16. #16
    Moderator Cutlass's Avatar
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    Quote Originally Posted by 67CamaroRSSS View Post
    Leaving the AC on also tends to drip condensate on the launch pad.

    As you well know, getting water on the concrete launch pad is a big time Bozo No No....

    It really pisses me off when I see guys (especially front wheel drive cars) drive thru the water box. All they are doing is dragging water onto the launch surface - an extreme NONO!!!!!! Not to say what's dripping onto the launch surface while they are staging...

    And yes, I turn off the AC when I come up in the staging lanes and I drive around, and then back up into, the water box.

    I've been doing this for a few decades and I've learned the protocols...
    You might still be dripping on launch pad....bozo





  17. #17
    Exalted Cyclops 67CamaroRSSS's Avatar
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    Quote Originally Posted by Cutlass View Post
    You might still be dripping on launch pad....bozo




    Such is life!

    And this is one of the reasons I usually only take the car to the track in the cooler months...

  18. #18
    Senior Member Too Fast's Avatar
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    Quote Originally Posted by Cutlass View Post
    You might still be dripping on launch pad....bozo




    Beat me to it....

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