Rick's Free Auto Repair Advice

Posts Tagged: A/C doesn’t work

AC light flashing GM vehicles

Fix AC light flashing GM vehicles GM has issued a technical service bulletin #09-01-38-004: INFORMATION FOR VEHICLES WITH HVAC CONTROL MODULE A/C AND RECIRCULATION INDICATORS FLASHING. The bulletin applies to the following vehicles: 2008–2010 Buick Enclave 2007–2010 Cadillac Escalade Models 2007–2010 Chevrolet Avalanche, Silverado, Suburban, Tahoe 2009–2010 Chevrolet Traverse 2007–2010 GMC Acadia, Sierra, Yukon, Yukon XL 2007–2010 Saturn OUTLOOK The A/C light is designed to flash and disallow A/C operation if any of the following conditions are present: Ambient air temperature (AAT) is too cold (35 degrees or colder) Vehicle … Read More

Toyota AC light flashing

Toyota AC light flashing If you have a Toyota AC light flashing condition, the problem may not be as bad as you think. Toyota AC compressor clutches use a lock sensor circuit to make sure the clutch is fully locked-up to the compressor when the AC is on. The lock sensor generates an AC voltage as the clutch turns and sends that signal to either an A/C amplifier or ECM (depending on the car model). The signal is compared to engine RPM and that’s how the system knows that the … Read More

Ford AC doesn’t work

Ford AC doesn’t work, leaks refrigerant, low freon, Ford vehicles, TSB Ford has issued a technical service bulletin (TSB) #06-4-9 to address leaking refrigerant problems on the vehicles listed below. Ford has determined the cause as a faulty compressor shaft seal. Ford has issued a revised compressor shaft seal F1VY-19D665-A to solve the problem.Don’t replace the compressor, just the shaft seal 2003 Escort 2003-2006 Focus, Mustang, Taurus 2003 Explorer Sport, Windstar 2003-2005 Excursion, Explorer Sport Trac 2003-2006 Escape, F-150, F-Super Duty, Ranger 2004-2006 Freestar 2006 Low Cab Forward Lincoln: 2002 … Read More

AC blows cold then warm Dodge Ram

AC blows cold then warm Dodge Ram Dodge Ram 1500 intermittent AC, Compressor quits, blows cold, then warm, warm AC There are basically three sections to the AC system; the sensors (high and low pressure sensors and the AC on/off switch), the command unit (the powertrain control module- PCM), and the “doing” components (the compressor clutch relay, compressor clutch, and the compressor). The sensors inform the PCM if system pressures are too high or low. And the low pressure sensor provides the information on when to cycle the compressor on and off. … Read More

AC blows warm air on GM vehicle

Why does my AC blow warm air Baby it’s hot outside and your AC blows warm air. Now you want to know how to fix it yourself. It’s do-able, but not without some basic knowledge and some warnings. The first thing do-it-yourselfers do is run to the auto parts store and buy a recharging kit. It’s very likely low on refrigerant. But, it could also be a blown fuse to the compressor clutch or a bad compressor clutch coil. So always start your diagnosis on the electrical side of the … Read More

ABS light on AC doesn’t work

My ABS light is on and my A/C doesn’t work GM vehicles are known for faulty ignition switches. The problems are almost always intermittent. One common symptom is for the A/C to start blowing warm air or for the blower fan to stop (depending on which GM model we’re talking about), along with an ABS light. The problem is usually the ignition switch heating up and not providing power to the A/C clutch and the ABS computer. © 2012 Rick Muscoplat Save Save


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