Hot & Cold

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Feb 23, 2009 | 09:56 AM

paul mosca

Thread Starter

Heel & Toe

Joined: Oct 2006

Posts: 18

Likes: 0

From: Panama City Fl

Hot & Cold

I"m having a problem with my heat & Air. One side blows hot while the other blows cold. I've been told it's a calabration problem but if that's it where? Is it in the Climate Control unit or somewhere else, how do you fix it?

Mar 8, 2009 | 09:10 PM

joshua1975

Cruising

Joined: Mar 2009

Posts: 13

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I am having the same exact problem with my 1998 vette. I am looking for a fix as well. If you have found a fix please let me know what it was.

Mar 8, 2009 | 10:31 PM

Tikiman12

Drifting

Joined: Jun 2006

Posts: 1,730

Likes: 4

From: Delray Beach Florida

depends which side is blowing hot, if it's the passanger side then all u need todo is recharge ur ac. if it's the driver side then ur actuator vent needs to be changed. that's not easy take it to a corvette specialist I would suggest for either side try to recharge the ac first.

Mar 8, 2009 | 10:44 PM

jrose7004

Team Owner

Joined: Mar 2004

Posts: 58,477

Likes: 1,802

From: Oklahoma City OK

C6 of Year Finalist (appearance mods) 2019

The 98 that I had used to do that when it needed charged!

Mar 9, 2009 | 11:15 AM

DRR

Burning Brakes

Joined: Aug 2004

Posts: 770

Likes: 0

Check for hvac codes in the dic and post the codes here for further instructions.

Mar 10, 2009 | 09:45 PM

chris_iz100

Cruising

Joined: Jun 2006

Posts: 13

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Hi, have the same problem, cold on drivers side, hot on passenger side. Hvac codes are B0363 left actuator feed backopen. And B0446 right actautor out of range.

Anyone had this problem or know how to fix?

Thanks
Chris

Mar 11, 2009 | 11:45 AM

joshua1975

Cruising

Joined: Mar 2009

Posts: 13

Likes: 0

Hot/Cold

I gave up and took it to the dealer. They are saying the actuator is working but it has slipped so the position is the problem. They will re set it for $250

Mar 11, 2009 | 12:38 PM

KENCO

Instructor

Joined: Oct 2008

Posts: 212

Likes: 1

From: Clearwater FL

St. Jude Donor '11

Quote:

Originally Posted by joshua1975

I gave up and took it to the dealer. They are saying the actuator is working but it has slipped so the position is the problem. They will re set it for $250

NOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOO !!!

Reset yourself................pull #27 fuse in pass foot-well and reinstall, it will reset itself in about a minute!

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Mar 11, 2009 | 02:21 PM

DRR

Burning Brakes

Joined: Aug 2004

Posts: 770

Likes: 0

Hey Chris,

Start by writing down all the codes and the reset them with key on, engine off. You should then hear the system slowly cycle all the actuators to prove postion, 6 times.

When that indexing ends - check again for codes, if they come right back...

On mine, I could clear a left actuator code, but it would come right back.

...I used a zoom-spout lube to spritz the bushing and tweaked the slotted shaft slightly with a common screwdriver and that got it working again.

Mar 11, 2009 | 09:04 PM

#10

chris_iz100

Cruising

Joined: Jun 2006

Posts: 13

Likes: 0

Hey DRR, I pulled fuse 18 and 27, disconnected battery, cleared codes on dic, codes return immediatley, b0363 and b0446. When i clear codes i can hear the actuator moving. When i turn the driver temp adjust up and down, i hear actuator moving, when i turn passenger temp up and down i don hear anything. So is there a way to get to the actuator to adjust the passenger to cold and leave it that way? Dont really care if it goes to hot. How did you get to it to tweak it?

Thanks

Mar 12, 2009 | 06:08 AM

#11

Mikeceli

Race Director

Joined: Sep 2002

Posts: 14,515

Likes: 24

From: Washington County, South UTAH

Mar 16, 2009 | 02:37 PM

#12

DRR

Burning Brakes

Joined: Aug 2004

Posts: 770

Likes: 0

Hey Chris, My problem was with the left (driverside) actuator. I have not had to look for the pass side. Based on info in the links below I don't think you can get to it by removing the glove box.

Here is a good ref for codes...http://www.aceesolutions.com/vette/2002dtc.html

Search results...

http://forums.corvetteforum.com/c5-t...-actuator.html

http://forums.corvetteforum.com/c5-t...ss-cold-2.html

http://forums.corvetteforum.com/c5-t...e-vents-2.html

Good luck,

Doug

Jun 9, 2009 | 09:02 PM

#13

chris_iz100

Cruising

Joined: Jun 2006

Posts: 13

Likes: 0

hey, i found a temporary fix for the cold on driver side, hot on pass side. i cut the heater hoses and installed a shut off valve on each of them, a ball valve. so when i shut the water flow off to the heater core, no more hot air on the pass side, actually it blows cool to. so its good for summer time, and if you need heat just open the hood and open the valves and you have it. i realize that this isnt a correct fix for the pass actuator, but its a lot easier than taking the dash out and only takes a few minutes to do. so if you have this problem and and wanna ride around this summer in a cool car without a bunch of work give it a try.

Chris

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