HVAC problem

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Jul 17, 2011 | 10:21 AM

maroman88

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From: Oradell New Jersey

HVAC problem

my driver side is blowing warmer air then the passenger side when the AC is on! i read thru a bunch of threads already, i did the reset thru the DIC, i pulled the fuses to reset, i tore apart the car and removed the acuator and did the adjustment to that. i have NO codes for the HVAC system. i climbed under the dash and watch the acuator move and its moving... what else?!

Jul 17, 2011 | 10:49 AM

rebelheart

Safety Car

Joined: May 2008

Posts: 4,237

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From: Lacombe Louisiana

Once again,your system is most likely a bit low on freon! This is the most common cause for this condition.

Jul 17, 2011 | 10:55 AM

maroman88

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From: Oradell New Jersey

i obviously checked that... and the passenger side is ICE cold

forgot to mention it is the dual zone HVAC, i hate overly complicated things

Jul 17, 2011 | 11:08 AM

Bill Curlee

Tech Contributor

Joined: Dec 1999

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From: Anthony TX

CI 6,7,8,9,11 Vet

St. Jude Donor '08

WHAT CODES are you seeing when its hosed up?

BC

Jul 17, 2011 | 11:09 AM

rebelheart

Safety Car

Joined: May 2008

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From: Lacombe Louisiana

Best check that freon level again,many ppl have torn their dashes apart chasing ghosts,only to add a bit of freon after the fact and cure the problem.The passenger side will be "ice" cold even if the system is a bit low.

Jul 17, 2011 | 04:07 PM

maroman88

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From: Oradell New Jersey

no codes, had no history codes under the HVAC previously, i already tried adding some freon, at first i thought it was just low and added some, then i noticed the passenger side was still blowing cold

Jul 17, 2011 | 04:32 PM

Bill Curlee

Tech Contributor

Joined: Dec 1999

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From: Anthony TX

CI 6,7,8,9,11 Vet

St. Jude Donor '08

Remove the drivers side under dash close out panel.. Get an inspection mirror and flashlight. Observe the controller and have someone cycle the temp control **** thru it full temp range and see if the controller consistently moves thru its full range"

There should be range marks on the controller

BC

Jul 17, 2011 | 05:45 PM

maroman88

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From: Oradell New Jersey

assuming its those marks in the last picture?

if so then it goes way past on the cold side, the hot side is right on target

Last edited by maroman88; Jul 17, 2011 at 06:08 PM.

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Jul 17, 2011 | 06:24 PM

dmarkshark

Burning Brakes

Joined: Jun 2010

Posts: 1,014

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From: Rockwall TX

You said you adjusted the actuator, could you have messed that up somehow? That would explain why it would not set correctly? Just some thoughts.

Jul 17, 2011 | 06:25 PM

#10

Bill Curlee

Tech Contributor

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From: Anthony TX

CI 6,7,8,9,11 Vet

St. Jude Donor '08

When you had the controller open, was the main drive gear cracked??

Last edited by Bill Curlee; Jul 17, 2011 at 06:39 PM.

Jul 17, 2011 | 07:16 PM

#11

maroman88

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From: Oradell New Jersey

nope not cracked, when i had it apart i marked everything off like in the right up in another thread. its not like it worked before i took it apart... im stumped.

i checked my freon pressure again... just about 32lbs of pressure when AC on highest

Last edited by maroman88; Jul 17, 2011 at 07:19 PM.

Jul 17, 2011 | 07:43 PM

#12

Bill Curlee

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From: Anthony TX

CI 6,7,8,9,11 Vet

St. Jude Donor '08

Quote:

Originally Posted by maroman88

Well,, thats too high but modt likely not your issue.

Take the actuator off and manually position the shaft to the coldest position and see if its cold out that vent.

BC

Jul 17, 2011 | 10:16 PM

#13

dmarkshark

Burning Brakes

Joined: Jun 2010

Posts: 1,014

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From: Rockwall TX

Im curious, did it ever work correctly for you while you have owned this car? Or, is this something that just started.

Jul 17, 2011 | 11:50 PM

#14

maroman88

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From: Oradell New Jersey

ill try manually adjusting it.

yea im positive it worked last summer, its a very noticable differance to the point where it doesnt cool the driver side

Jul 18, 2011 | 12:15 AM

#15

LT1driver

Le Mans Master

Joined: Oct 2000

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From: Texas-out west

would this also be the problem for a car that: when adjusting temp up to say 68 and then trying to go back to 60 temp won't go back down and air blows at higher temps

Jul 19, 2011 | 07:27 AM

#16

Lowcash

Melting Slicks

Joined: Jun 2001

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From: Woodbridge Va

Quote:

Originally Posted by Bill Curlee

Well,, thats too high but modt likely not your issue.

Take the actuator off and manually position the shaft to the coldest position and see if its cold out that vent.

BC

Bill,
Looking at your 2nd picture, is that the position for the coldest setting (to the right of center) ?

Jul 19, 2011 | 11:52 AM

#17

maroman88

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From: Oradell New Jersey

k removed it and adjusted by hand, no real differance, reinstalled it and its deffinatly going all the way to the coldest position. guess that rules out the acuator, the flap seems to open n close without any obstruction as well

Last edited by maroman88; Jul 19, 2011 at 12:33 PM.

Jul 20, 2011 | 11:15 AM

#18

maroman88

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From: Oradell New Jersey

B0363H did pop up today

Jul 20, 2011 | 02:07 PM

#19

dmarkshark

Burning Brakes

Joined: Jun 2010

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From: Rockwall TX

Back to the freon? How are you checking it? I had this issue and when all said and done, it was a plugged orifice tube.

Jul 21, 2011 | 11:57 PM

#20

maroman88

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From: Oradell New Jersey

where is said orfice tube? i have a guage that goes on the i believe low side port, where u would add more freon from

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