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I have a 2011 buick LaCrosse and my a/c starts off cold then gets warm. when I stop to run into the store and turn off the car, it gets cold again but as i continue to drive it gets warm again.

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  • Rob Essenburg Apr 17, 2017

    You either have debris in front of you condenser or the condenser is more than likely bad.

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  • Buick Master
  • 2,195 Answers

Sounds like your freon gas is low. You can buy a kit and do it yourself but if you do not know what you are doing you should get a mechanic to top it up for you and check for leaks.

Posted on Apr 17, 2017

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Posted on Jan 02, 2017

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Since you have no power to the ignition switch( you can't get the key out). Look to the main fuses first. You can see them threw the top. If the solder joint isn't shiny, pull them first. Since it did start and run, it isn't the ignition switch. Wiring most likely in place. Fuse panel could be bad. I've replaced a lot of them. But not with out diagnostics.

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1 Answer

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I have 2007 Lacrosse with 90,000 miles.It was doing the some thing all it was is a restricted heater core. Warm the car up to temperature, feel the heater hoses under the hood, at the fire wall if there is a big difference in temperature, it is the problem.I found it easier to take both heater hoses of at the block then run a garden hose into the one that was hottest and let the other one run into a container, Then you will see what washes out. Put them back on and add water you will have heat again, You should flush the whole system because what is happening your antifreeze is wore out. Good luck!

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have the coolant temperature sensor before you get into the big matter. is your check engine on

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