Question about 2002 Buick Century

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2002 Buick Century - AC does not work in Max setting. Works fine in Blend setting, compressor comes on and runs cold. But in standard AC mode, on Max setting with AC button on, does not sound like compresor is coming on and not getting cold. Could this be a fuse? Or ideas? I do occassionally (maybe once or twice a month) hear a clicking noise under the hood after I turn off the engine and exit the car, which sounds like a possible fan going bad, and also get some occassional rattling sound from under the dash while driving, near the steering wheel. Not sure if related at all.

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Posted on Jan 02, 2017

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SOURCE: Bearing

check your harmonic balancer they where notorius for going bad on buicks.Remove the belt and grab the balancer and see if you can rock it back and forth by hand. if you can its the balancer

Posted on Sep 21, 2008

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SOURCE: Buick Lesabre Humming noise that becomes louder as RPMs increase

Bad Crankshaft Damper

Posted on Dec 16, 2008

Papa Chan
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SOURCE: high pitched sound just started. It goes REEEEEE!!

It sounds like your power steering pump as you said, but I would start with changing the main drive belt. I have come across this same problem before. If you change out the belt and you still have this problem, remove the belt and start the engine. Turn the wheels left and right and listen for the noise. If the noise is gone then put the belt back on and check again. If the noise comes back then you have a component problem. I have seen the belt tensioner to make noises as you describe. I hope this helps you. Let me know if this is helpful to you.

Posted on Jan 02, 2009

michigan man
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SOURCE: occassionally dies mostly when power window button is pressed

change the drive belt on the car if the car has over 40,000 miles and while you have the belt off have the alternator tested as while as the battery you may just have a bad cell in the battery

Posted on Apr 27, 2009

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SOURCE: Air Ride on 1994 Buick Park Avenue

You can unplug it right at the pump...the only problem is that the rear end is going ride low and you will notice a steering power, and some bottoming out in the rear. The best thing to do is see if that shocks themself might be leaking and replace them if they are since eventually this will damage the pump. Sometimes it will just blow the fuse, which brings me to my next could just pull the fuse in the fuse box to shut it off.

Posted on Oct 17, 2009

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98 buick century AC blows cold air on passenger side and hot air on drivers side..when we recharged the unit, it worked cold air for a few days and now blowing hot air again.

Hi. There seems to be a blockage within the system. I will list all parts to be checked by your mechanical. I would also have the blend door linkages or servos inspected for fail points along with the listed areas of concern, below:

Loose or broken drive belt
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