Question about 2001 Buick Century
On this year Buick the AC compressor front shaft seal is prone to leaks and this allows the R134 refrigerant to leak by the seal, with no charge the compressor will not run, the system is lubricated by oil that mixes with the refrigerant, no charge and no lubrication, so the system turns the compressor off. You can replace the compressor fairly cheap (less than $100.00) by buying a rebuilt one on eBay, I did this with my Century last year and so far so good. The compressor comes out through the right front wheel well after the plastic liner is removed.
Posted on May 18, 2011
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Posted on Jan 02, 2017
ymeadows: If you have properly re-charged your A/C system to the correct pressure and do not get cold air coming out of your cabins vents, then you have a clog somewhere in the A/C system. This may be caused by a dirty orifice tube or expansion valve (same part different name) or the clog could be in the evaporator or condenser. I would not continue to use your A/C until you locate the source of your problem as this may cause over-stressing of other critical A/C components. If you are mechanically inclined and familiar with how A/C systems work, I would start with replacing the orifice tube or expansion valve. These can be on the high or low side of the A/C system and varies from one make and model to another. PLEASE VOTE FOR THIS SOLUTION IF YOU FOUND THIS INFORMATION HELPFUL, THANKS,
Posted on Jun 01, 2009
you need to have it diagnosed by a professional. These are complicated systems even to a trained tech. You may be over or under charged, have a clogged expansion valve, have a leak or many other issues. This model has a rcv refrigerant control valve inside the compressor which regulates the pressure of the compressor. If you notice the compressor never shuts off like conventional auto a/c's do the only time the clutch works is when you turn it on or off. Can be complicated.
Posted on Jun 20, 2009
If it blew cold air after freon added and 5 days later blew warm, you may have a leak in the system. Also check and see if compressor comes on if not you may have an electrical issue, relay for compressor,coil on compressor, etc.......
Posted on Jul 24, 2009
there are few things you need to check out:
1. if the compressor is overcharged it will shut down and you won't get any cool air
2. the thermostat for your cooling system is bad
3. the link to adjust the temperature is too short (did you feel the switch loose when changing temperature from hot to cold)?
hope this helps.
Posted on Jun 06, 2010
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