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Search Auto Parts Search 05 yukon intermitte ac shuts off Sign up here!   Email This Post Auto Repair Home>> Automotive Repair>> AC Auto Repair Help Forum greasebme New User Apr 30, 2013, 7:00 PM Post #1 of 6 (1733 views) 05 yukon intermitte ac shuts off Sign In I have a 2005 Yukon with dual climate automatic control works great and all of a sudden the ac clutch dis engadges checked pressures and everything is ok checked the high side pressure switch have 5-volt ref but checked the ground wire from connector to battery neg showed 13.6 ohms seams way to high noticed that the ground goes to the pcm and the signal wire shows 1.064 at static pressure with engine running the spec are .8-1.00 volts could this be causeing the problem. please help Hammer Time Ultimate Carjunky / Moderator Apr 30, 2013, 7:23 PM Post #2 of 6 (1711 views) Re: 05 yukon intermitte ac shuts off Sign In That's not how you approach this. You simply use a scan tool and look at the pressure that the computer is seeing. You can measure the return voltage of the sensor but you would need a chart to cross that to pressure. ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional. greasebme New User Apr 30, 2013, 7:29 PM Post #3 of 6 (1703 views) Re: 05 yukon intermitte ac shuts off Sign In ok will take a look via scan tool data before this problem I had a very randomly the passenger side vents would be cold and the driver hot can the two problems be related or maybe a sign of two problems Hammer Time Ultimate Carjunky / Moderator Apr 30, 2013, 7:31 PM Post #4 of 6 (1696 views) Re: 05 yukon intermitte ac shuts off Sign In That's an indication of low refrigerant if that truck doesn't have separate left and right temp controls. ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional. greasebme New User Apr 30, 2013, 7:36 PM Post #5 of 6 (1691 views) Re: 05 yukon intermitte ac shuts off Sign In yes have dual climate controls and the level is ok Hammer Time Ultimate Carjunky / Moderator May 1, 2013, 3:03 AM Post #6 of 6 (1667 views) Re: 05 yukon intermitte ac shuts off Sign In You don't know the level is OK. You can't know that without a complete evacuate and recharge with a weighed charge. With individual temp controls you can also have a problem with the individual blend door actuators. ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.   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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