Question about Mercury Grand Marquis
Don't do it, you risk SERIOUS personal injury. A/C requires special training and tools. VERY easy to get permanently injured.
The other side of the hose goes to the low pressure side of your A/C. You need a MEASURED amount of refrigerant, and oil. Too much or too little and you can destroy your compressor.
If you are low on refrigerant, you will have a leak and that needs to be resolved, the receiver/dryer replaced, and it's oil measured and replaced...
Take the unit to a qualified shop.
Posted on May 26, 2011
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Posted on Jan 02, 2017
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