Question about 2004 Buick Century

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My a/c in my car in blowing hot air after had a/c checked as gas

My a/c is blowing hot air after i had i gas up and lines checked for leaks 2 weeks ago it was blowing good for 2 weeks

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Unfortunately you might have a coolant leak, in spite of the A/C inspection. I'd get a second opinion from another mechanic. Have the mechanic check to make sure your condenser is not clogged with dirt, rocks and road grime, preventing the A/C system from cooling properly. Notorious problem for automotive air conditioning.

Check to see that the fuse to the A/C is not blown and that the compressor is cycling on and off as it should. If the the A/C pressure switch was not inspected, it should be inspected and tested for proper operating.

One last thing. Also have the mechanic check the pressure in the A/C system, and that there is sufficient refrigerant in the system.

Hope this helps.

Good Luck.

Posted on May 25, 2010

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The AC compressor front seal is leaking, this is a very common problem with this car, just did mine a few months ago, exact same thing, charged it lasted a week or two then leaked out. It is a 3 hour job to replace the copmpressor, it comes out through the wheel well after u remove the pastic insert in front, very easy to get at, charging is hard due to the fact the system MUST HAVE A VACUUM pulled on it belfore u can charge it.

Posted on May 25, 2010

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You either have a leak or your A/C compressor is not working. Check the fuse for the A/C and go from there.

Posted on May 25, 2010

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Wel I am not a mechanic or anything, but i haev had some experience with aircons. The one problem might be that there is a leak in the pipes. 9 out of ten times the leak is where the various pipes join. you can simply take a spaner and tighten them otherwise the leak maybe where the compressor is. if the pipes were blocked then it will not blow any cold air and you said it did blow cold air for a while. the way to find a leak is take soap water in a spray gun and spray the soap water in on the pipes and joints, this should blow a bubble where the leak is. however this can only work if you have gas in the compressor. so fill in more aircon gas first.
hope i am right.

Thanx

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