[DML] Re: more AC stuff - rattling?

["Harold McElraft" <hmcelraft@xxxxxxx>]

If the engine is cool or cold when you first turn on the AC your 
noise could be a loose AC belt. When it slips at the compressor it 
can make a lot of racket and vibrations you can feel. As the engine 
temperature climbs the belts actually get tighter and therefore no 
slippage. As a result, I prefer to adjust the belts when the engine 
is cold and recheck the tension when the engine gets hot. New belts 
are especially necessary to recheck. After 15 minutes at temperature 
the new belt "breaks-in" and usually needs retightened.

Harold McElraft - 3354


--- In dmcnews@xxxxxxxxxxxxxxx, "sweitzel_2000" <sweitzel@xxxx> 
wrote:
> So I have my AC charged with Freeze 12. Everything is working 
great. 
> It blows nice and icy cold as well as hold pressure. No leaks. 
> 
> However, I noticed an interesting thing. Once the car has sat 
> overnight, if I turn on the AC for the first time the next day, i 
get 
> a nasty rattle within what I presume are the hoses underneath the 
> car. I can feel it in the driver's seat. The rattling last for 
only 1 
> possibly 2 seconds then immediatly quiets and goes away, from that 
> point, the system operates completely normally. Would this be a 
sign 
> of overcharging or something else possibly?




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