Question about 2004 Pontiac Grand Prix

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Where is the air flow sensor located ? the air conditioner isn't blowing cold air. its fully charged, clutch is working, fuses are ok.

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It is in the air intake hose to the engine between the air cleaner and the engine throttle body.

Posted on Jun 04, 2010

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My 2008 Hyundai air conditioner was working great one day next day it not blowing cold air.Everything else working fine charged it.Still not cold.found fuse burnt out replaced burned out again


Hey Lana,
Sounds like the compressor clutch may have gone out...
Does the fan (inside) still work? Take it to a qualified professional and get it diagnosed.

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Your problem is most likely electrical. Check the A/C clutch relay, it is located in the fuse box in the engine compartment. You can also check the A/C high pressure switch or the evaporator temperature sensor.

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Air Conditioner blows warm air
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My GMC Sierra's air conditioning works great but the driver side vents will spontaneousely start blasting out hot air. The passenger side continuse to blow cold air. If iI turn the truck off and...


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Turn on A/C to MAX and check to make sure the a/c clutch is engaged. If not, check fuses and relays. Also your system might be overcharged enabling the high pressure switch.

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Check the low pressure sensor and the hi pressure sensor to be sure they are operating properly. Also check compressor relay and all fuses.

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Is the compressor engaging? If not he needs to find if a sensor issue if its fully charged or a low pressure or refrigerant condition. You can have pressure without refrigerant.

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My ac will not blow cold air.it is fully charged and the lines are cold but will not blow cold air.the air is warm with ac on


First open the hood and find the a/c compressor. Once located leave hood open and then start the Jeep. With the air on look under the hood and see if the compressor is turning. Make sure not only the outer pulley is turning but see if the center in the middle of the pulley is spinning to. If it is not then it could be a fuse that runs the clutch for it. Check this out and let me know.

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