Question about 1997 Chevrolet Monte Carlo
Typically the AC system will protect the compressor when the system has low pressure, no R134. If you have the correct tools you can test the pressure by attaching a gauge to the low pressure side of the system. Anything below 10 psi will typically not allow the compressor to engage. The other tool you will need in addition to a gauge, or some quick connect hoses used to install freon also has a gauge. Any way a low system can be purged and should be prior to charging. It is a requirement of repair shops to purge the old freon into a system or container, however, I dont have one and the small amount being purged wont hurt. Step 1 purge the system, open the valve on the hose, it will stop hissing, this should be done with the car off. Step 2 close the valve on your hose and start the engine, turn on the AC to max with fan on high. Screw a can of R134 on the valve on the end of the hose and turn the valve to open the can, shake the can for a few seconds and open the valve slowly, you will feel the can getting cold, turn the can up side down and open the valve completly. If you havve a healty AC system and compressor it should turn on at some point during the emptying of the 1st can. The air should begin to blow cold. Check your pressure before using another can. If you think you have a leak get R134 with leak detector. Dont go over 45-55 PSI.
Posted on Jun 04, 2009
When you start putting the freon in the compressor should kick on and then start pulling it in. Yes it will cycle, as long as all the lights aren't flashing on the temp control.
Posted on May 24, 2009
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Posted on Jan 02, 2017
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