where do i hook up to recharge my air conditioning
You have to charge it on the low pressure side ONLY. That would be the bigger of the two air cond. lines. Usually there is a port that comes right out of the plastic box that is mounted to the firewall. Look for a port with a RED cap on it. Your Recharge kit hose will only fit on that line as the high pressure hose has a much bigger quick-connect port. It should take 3 cans to fill it . They are $15.00 each at autozone, don't forget a small can of oil first. If the third can won't empty try turning it upside down . Then it will go in as a gas not a liquid. Good Luck, Kenny.
How much freeon go in a 2007 grand marquis
Your Grand Marquis should take about 2-1/2 12 oz. cans of R-134. and a 1/2 can of air compressor oil. This is usually available with the oil, stop-leak and the R-134 Freon in one large combined bottle with the hose already attached for around $45 at any autoparts store and at Walmart as well. Otherwise each can of Freon is about $16 now. The low side hose fitting should be marked with a "RED" cap on it and should be the closet to the evaporator or the firewall (nearest to the windshield of the car).If you are not experienced in this matter, I would advise you to let a qualified auto technician do it for you. You can EASILY INFLICT BODILY HARM if you don't know what you are doing. R-134 runs with VERY HIGH PRESSURE. You can normally have it charged up at any Jiffy-Lube or oil change station or at your local Ford dealer. Look for coupons for a free oil change or at a discount with an air cond. recharge. Good luck, Stay Cool, Kenny/MrBlueOval.
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