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2002 chevy suburban ac blows cold in front but the rear blows hot.

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6ya6ya
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Posted on Jan 02, 2017

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SOURCE: Rear a/c not blowing cold, front works fine.

you may not have enough refrigerant. a low charge can cause the rear in this dual system to not work for beans. charge with a can of uv and find the leak. fix the leak. evac the system and recharge. i think you take 4 lbs, but check the accumulator sticker. you may want to just change the accum at the same time.

Posted on Jun 15, 2009

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SOURCE: Rear a/c not blowing cold, front works fine.

probably the same problem as the '99. you probably lost too much coolant. charge with dye and check for leaks, (these things lose refrigerant normally, so you may not have a bonafide leak but check anyway) change the accumulator as a matter of course. evac the system and make sure you lose no vac over the course of 5 to 10 min. recharge the system for the proper weight (which is on the accum sticker) if you need detailed instructions let me know.

Posted on Jun 16, 2009

  • 1071 Answers

SOURCE: Front AC blows super hot and rear blows cold on

climate unit

Posted on Jul 22, 2009

longbow243
  • 103 Answers

SOURCE: 2004 chevrolet suburban AC blows hot/cold at same time

You need to replace the drivers side temp actuator that is located on the left side of the HVAC box. It is retained by 3 screws and is fairly easy to replace.

Posted on Aug 29, 2009

  • 1949 Answers

SOURCE: 2002 Suburban 1500, the front vent does not blow

sounds like the blind flap in heater box is broken.....sorry to say hope this helps....

Posted on Nov 15, 2010

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01 suburban blow hot air in front and cold in rear


There's a valve between the front and the back that is supposed to open automatically. I have the same problem on my 1994, but in reverse, I get AC in the front, but it just blows hot in the back. I was told that this valve might be stuck... but no one would tell me where it was or how to get to it and no mechanic wanted to fix it for me. Apparently, if you can find it, it's easy to get it unstuck. Good luck.

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Ll2001 suburban, when the AC is on, the front AC blows hot, warmer than ambient temperature while the rear AC blows cold air as expected. The flapper door seems to be working and both air box filters are...


possible heater hot water control valve. if equipped would be found on one of the heater hoses under the hood. also try cafeully pinching the heater hoses to stop water flow.

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2001 Suburban: I have a 2001 chevy suburban and the air condition...


if its the computer climate controlled series then it might be the the vents. what happenes some times is the vent wont switch over from hot to cold or vise-versa. i had the same problem but reversed, no heat in front and it worked up to the last time i had switched it from hot to cold.
give it a shot, best of luck

May 18, 2010 | 2001 Chevrolet Suburban

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Sep 06, 2009 | 2003 Chevrolet Suburban 1500

3 Answers

2001 Chevy Suburban rear a/c warm front ice cold


I believe there is a expansion valve located on the back part of the air conditioner on the back right side i believe that could be the problem. I think if I am understanding you correctly, your back air is not as cool as it should be or not cold at all. Might want to check this. If I am not understanding you correctly please let me know again what your problem is.

Aug 24, 2009 | 2003 Chevrolet Suburban 1500

1 Answer

AC doesn't blow cold


Have the compressor tested

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