solutionsforeverything

Auto Air Conditioner Blowing Warm Air, Not Cooling Is you car's air conditioner blowing warm air only and no cool air? Your A/C cooling problem could be caused by any of the following: Your A/C system may have lost its charge of refrigerant. This is probably the most common cause of a no cooling problem. Another possible cause of no cooling may be that your A/C compressor is not be engaging when you turn on the A/C. This can be caused by an electrical fault in the A/C compressor circuit or the magnetic clutch that drives the compressor. Another cause could be an internal obstruction inside the refrigerant circuit that is preventing refrigerant from circulating inside the A/C system. Another possibility might be a blend air door inside the HVAC unit that is stuck in the HEAT position and is preventing air from flowing through the A/C evaporator. Compressor Checks  Start with the compressor. Does it engage when you turn on the A/C? If so, the compressor is ...

1997 Pontiac Grand Prix 3.8L no cooling fans unless A/C is on. Country: United States Make: Pontiac Model: Grand Prix GT Year: 1997 Engine: 3.8l Already Tried: Unplugged coolant temp sensor next to thermostat, and the fans did not come on even then. Will only come on with A/C. Does the check engine light come on with engine running? How hot does the engine get if idling without the a/c on? Customer replied2 days and 17 hours ago. The engine gets warm, but I wouldn't say hot. It doesn't have a gasket problem. No CEL. Expert:  Dave Nova replied2 days and 17 hours ago. Fans should of course come on when the coolant sensor is unplugged. Fans also come on when the temperature reaches 225-228 degrees. Does the engine reach that temperature range or more? Customer replied2 days and 17 hours ago. Well, see, that's what I thought. That's why I unplugged it, but they didn't come on. And they DO run with the A/C on, which is weird, so I'm not in...