Question about 1995 Chevrolet Camaro

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Strange noise and smell after attempting to charge a/c

After a short attempt at a DIY a/c charge, the car is now making a loud noise when started. It almost sounds like a belt squealing. There is also a faint burning smell. The recharge kit came with a can of 134a, same as what the car specifies.
On the first attempt to charge, following the instructions on the back of the package, the hose came apart where crimped (on the end that goes to the can) and freon sprayed. Very little freon, if any, was added.
Gave up and decided to wait and take it to a mechanic for the a/c charge instead. Now we have the noise and a smell that we didn't have prior to this. Not sure what it could be or where exactly it's even coming from.
I thought maybe when the freon sprayed it possibly got on a belt or something. I'm hoping that it just needs to burn off or evaporate, if possible.
The car is a 1995 Camaro Z28 LT1, automatic. The a/c has needed to be charged every year for the last 4 years.

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  • yalmalik Jun 14, 2009

    Thank you very much for your reply. I didn't know the system needed to be evacuated.

    After posting this question I restarted the car and the burning smell became worse, this time with smoke underneath the alternator area. I had a friend come take a look. His opinion is that the compressor clutch went bad. It wasn't spinning. Adding even the small amount of freon caused it to burn. He let the pressure out of the line and the noise/smoke stopped. Fuses appear fine. Time to let my mechanic tackle this. :)
    Thank you again for your prompt response, very much appreciated.



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Yes those cans of freon come with a conditioner/lubracant in them as well as the freon. Its very possiable that you got some where it does not belong. If you are filling every year you have a leak. If you are not evacuating the system chances are you are over filling it. Take it like you said to a shop. Then after they evacuate it fill it on your own a few years.

Posted on Jun 14, 2009


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