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2000-2005 Discuss your 2000-2005 Bonneville SE, SLE, and SSEi Please use General Chat for non-mechanical issues, and Performance and Brainstorming for improvements.

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Old 04-02-2006, 09:24 AM   #1
jdq
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Before I take car in for A/C SERVICE , other than recharge what can cause a/c not blowing cold air.
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Old 04-02-2006, 09:26 AM   #2
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many things...a leak...bad condenser...bad compressor...sooooo many things...
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Old 04-02-2006, 12:16 PM   #3
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Does the compressor run? If it does, you may have a problem with one of the actuators under the dash. Seems to be a relatively common problem.
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Old 04-03-2006, 12:42 AM   #4
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A reputable A/C service mechanic will first check the R134a state of charge. They usually connect a roughing pump to the A/C system to pump it down to hard vacum, then do a drop test under vacum. This also removes any non-condensable gases from the system. Once strenght & tightness (air tight integrity) of the system is established, they should re-fill with a specified amount of compressor oil & refrigerant R134a.
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Old 04-03-2006, 08:50 AM   #5
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Thanks, think Ill take it to mechanic for test and recharge, if that dont fix it I will check actuator,
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Old 04-03-2006, 09:06 AM   #6
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Quote:
Originally Posted by markwb
A reputable A/C service mechanic will first check the R134a state of charge. They usually connect a roughing pump to the A/C system to pump it down to hard vacum, then do a drop test under vacum. This also removes any non-condensable gases from the system. Once strenght & tightness (air tight integrity) of the system is established, they should re-fill with a specified amount of compressor oil & refrigerant R134a.
correct. when i worked at pepboys, we used to do an A/C system performance check for $20 or $25.. plus the cost of leak detecting dye. We would pull a vacuum, look for leaks and check the general performance of the whole system and give an overview of functionality
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