This is a multi-part question. Thanks in advance for help.
Every now and then the A/C on my 2001 Hyundai Elantra with 70k makes a whirring or high-pitched whining noise. I'm told that this may be because of low r134 refrigerant. And I may be imagining but I think it used to blow colder.
So, here are my questions:
1) How are A/C systems supposed to be maintained? Do you dump (legally, at a mechanic, of course) and refill the refrigerant every few years or do you just top it off when it's low?
2) Is this something I should do myself? Most mechanics offer A/C recharges but if it's as simple as picking up a can and doing it yourself, who would pay to have it done?
3) How is it done? I know I need r134. Looking at the AutoZone site I see they have a 12lb and 37lb container. Do I need one of those? Or can I use one of those 1 lb cans?
4) Can I check if I'm low before I make an investment in the stuff?
Thanks and PLEASE ANSWER ALL 4 PARTS OF MY QUESTION.
2007-08-19
23:01:18
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8 answers
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asked by
Anonymous
in
Maintenance & Repairs