Question about Nissan Altima

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Altima blowing hot air AC

We were driving when all of a sudden the AC stopped blowing cold air and started sending hot air even on max ac. We had an extremely hot day yesterday 110

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Thomas Perkins

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  • Nissan Master
  • 14,846 Answers

Go to Midas,they do great A.C.work,your Freon may have leaked out,they can test for a charge of 19.95..

Posted on May 20, 2016

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5 Related Answers

harley9701ha

Bill

  • 424 Answers

SOURCE: Temperature Control not working on 1999 Ford Explorer

Sounds like your temperature actuator is not moving or your temp door is broken. On max a-c ,coolant is shut off to your heater core allowing only cold air in.

Posted on Jan 26, 2009

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Anonymous

  • 11 Answers

SOURCE: 2002 New VW Beetle is only blowing hot air out of

My 03 conv. beetle did the same thing .My cousins 02 coupe also . He told me it was a lever on the bottom of the heater unit that switches between hot and cold. The problem is the lever falls down out of the unit .More cheesy ''engineering''. I fixed mine by cutting a short piece of copper pipe centered over the screw to prop up the lever in postion .That was about a year ago. Been working great ever since . The best i remember i took the glove box and the cover at the very front of the console out .You should be able to see it then.

Posted on Apr 27, 2009

greg_margo

Greg Margossian

  • 1959 Answers

SOURCE: AC STOPPED BLOWING COLD; ONLY BLOWS ON MAX MANUAL SETTING

Your AC is low on refrigerant; The AC compressor needs a minimum amount of regrigerant to run. If and when it does run (while low on refrigerant) the air coming out of the vents will not be cold. The refrigerant you require is R-134A and is available over the counter but if you are the least bit unsure as to how to add refrigerant, taking it to a garage that does AC recharging would be your best play. If you want to try to add refrigerant on your own you will need the following, 1LB can of R-134A, an AC hose adapter to deliver the refrigerant, and preferably an AC pressure guage to ensure you are not overfilling the AC line which will damage the system.

Posted on May 10, 2009

nathan

  • 634 Answers

SOURCE: Troubleshooting my blender value in my Dodge Ram

sounds like u guessed right blender door is getting stuck motor is weak or mount is cracked

Posted on Jul 07, 2009

william moody

  • 713 Answers

SOURCE: Drivers side AC will blow hot air.

the blend motor on the vehicle is probably bad

Posted on Aug 20, 2009

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1 Answer

97 Nissan Maxima heat still blowing when AC is on


Well thinking about the problem there e a flap in the vent pipes to shut off theatre and ac unit perhaps something has got in the pipe and stopping it closing or perhaps your heater control is US and needs replaceing . ( but I take it you have turned your heater to cold )

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My 2002 Expedition air conditioner will sometimes blow hot air and others cold air


I would check the following possibilities:
1. Is compressor clutch working? - You need to do this when the ac is blowing hot air only - locate compressor drive pulley on engine - rubber belt wraps around it. Start engine and set to max ac. When the ac is blowing hot air, look at the center of the compressor drive pulley using a good flash light - watch it for a while, it should be spinning with the pulley - this means the compressor is engaged. If not, the compressor is not engaged. If your ac is blowing hot air, then the compressor should be engaged and running (trying to cool). If it is not engaged, then your compressor clutch is probably going out. Could be low voltage to clutch, but more likely the clutch is worn out and only working some of the time. Note: if working normally, the compressor clutch will engage and disengage in cycles- but the air should always be cold. If clutch is bad, compressor would need to be replaced (sold as one unit). This is tricky to diagnose and could take some time - you need to do it when ac is blowing hot air but set to max cooling.

2. Low on refrigerant or refrigerant has moisture in it? If your ac blows cold initially after being off for a while, then heats up, and continues to regularly cycle back and forth between hot and cool air, then the system may be low on refrigerant or the refrigerant may have moisture in it that is freezing and restricting refrigerant flow. An a/c shop can check refrigerant level and even replace refrigerant if moisture is suspected.

Could be other issues, but I would start with these.

Good luck

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I have a 2002 Acura RSX that has AC Problem. Blows very cold air, but not all the time. As long as RPM is running at drive speeds, I have cold air. However, at stop lights the air temp goes warm. If I...


your ac compressor is freezing up try not putting it on cold all the way. put thermostat towards the red jus a lil but still on the cold side to see if that helps

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1 Answer

Drivers side AC will blow hot air.


the blend motor on the vehicle is probably bad

Aug 20, 2009 | 2003 Chevrolet Silverado 2500HD

1 Answer

AC STOPPED BLOWING COLD; ONLY BLOWS ON MAX MANUAL SETTING


Your AC is low on refrigerant; The AC compressor needs a minimum amount of regrigerant to run. If and when it does run (while low on refrigerant) the air coming out of the vents will not be cold. The refrigerant you require is R-134A and is available over the counter but if you are the least bit unsure as to how to add refrigerant, taking it to a garage that does AC recharging would be your best play. If you want to try to add refrigerant on your own you will need the following, 1LB can of R-134A, an AC hose adapter to deliver the refrigerant, and preferably an AC pressure guage to ensure you are not overfilling the AC line which will damage the system.

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2002 New VW Beetle is only blowing hot air out of vents even when set on cool. I was driving and I made a turn at an intersection and all of a sudden the cool vent air turned to hot air like I had the heat...


On the bottom of the air unit is the lever that changes temps. It likes to fall out of place.I propped mine back with a piece of half-inch copper pipe a couple of years ago.Remove glove box then panel on front side of console to access.

Apr 09, 2009 | 2003 Nissan Altima

1 Answer

Temperature Control not working on 1999 Ford Explorer


Sounds like your temperature actuator is not moving or your temp door is broken. On max a-c ,coolant is shut off to your heater core allowing only cold air in.

Jan 16, 2009 | 1999 Ford Explorer

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