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Search Auto Parts Search '99 GMC Safari Low Side Service Port Sign up here!   Email This Post Auto Repair Home>> Automotive Repair>> AC Auto Repair Help Forum jkenny7512 New User Jun 21, 2008, 2:31 PM Post #1 of 3 (3884 views) '99 GMC Safari Low Side Service Port Sign In Can anyone tell me where the low side port is found on a 1999 GMZC Safari, 4.3L V6 w/ rear air. I think the system needs to be charged and I cannot figure out which is the correct port. The one I think is correct does not fit the chage kit I bought. The port the kit does fit seems to be on the high pressure side of the system. Maybe I am looking at it wrong but I do not want to make a mistake and charge the wrong side. Can anyone tell me which is correct? way2old Veteran / Moderator Jun 21, 2008, 5:00 PM Post #2 of 3 (3882 views) Re: '99 GMC Safari Low Side Service Port Sign In The low side port will be near the firewall close to the accumulator(round can thing that has hoses in it). I do not recommend just adding refrigerant to try to cure a problem. If you add too much, those small cans can become an explosiver device. My suggestion(if you are not really familiar with a/c systems), is to have it diagnosed by a person that knows a/c. Just safety first. Good luck. Being way2old is why I need help from younger minds Tom Greenleaf Ultimate Carjunky / Moderator Jun 21, 2008, 10:55 PM Post #3 of 3 (3877 views) Re: '99 GMC Safari Low Side Service Port Sign In They're called "DEATH KITS" - Searchable by Google no less. They'll only hook up to low side ports which is bad enough without knowing what you are up to. If they could hook up to high side it would be "closed casket" Use AYOR should be on the labels but isn't, T   Email This Post   Automotive Repair     Auto Body Repair and Refinishing     Heating or AC Issues     Electrical and Wiring     Brake Systems     Car Stereo Repair Advice     General Discussions     Car Making Funny Noises     Engine Fault Codes     Engine Troubles     Exhaust Systems     Steering and Suspension     Transmission Troubles     Tricks of the Trade Automotive World     General Discussions     Antique Car Talk     Car Shows and Events     The Bargin Bin     Motor Vehicle Inspection     Car Care Tips     Traffic Tickets     Gasoline, Motor Oils, Concept Cars and Engines     Auto Insurance, Financing, Leases, Warranties Truck Repair     General Discussions     Truck Engine Repair     Truck Suspension Repair Motorcycle Repair     General Discussions     Motorcycle Engine Repair CarJunky     Open Posting     Board FAQ's     New Board Suggestions

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