I believe it finally happened... AC blend door?? - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

SummitWhite11 · 01-15-2024, 07:10 PM

I have had no issues with using my AC in my 2010 Camaro all these years. My method has always been to keep the knob 2-3 clicks after the Blue O to ensure it is not working too hard and putting stress on the blend door per instructions from many on the forum here...It has worked well until yesterday.

Fast forward to yesterday, I have noticed the AC is not blowing cold air like it should.. more like semi cool but when switched over to full Heat it biows hot air. As of today I decided to try it again on my 70 mile round trip from Palm Coast to North St. Augustine, FL on I-95... It now only blows luke cool/warm air but when switched to full heat... it blows hot air.

Is it the blend door?

SummitWhite11 · 01-15-2024, 08:15 PM

And to answer anyone's questions... the car is running a steady 201-203 temp mostly and not overheating at all. Radiator is full etc... Air filter is clean...

Mr_Draco · 01-16-2024, 01:05 AM

Check the freon lately? The high side port uses a rubber ball valve instead of using a schrader valve and leaks like crazy. GM actually recommends replacing the port every year because they are so prone to leaking.

I went through the same issue and thought mine was the blend door but instead the high side port had leaked all the freon out so I would start there first.

redcoats1976 · 01-16-2024, 02:36 AM

its a damn wonder there hasnt been a lawsuit over the design of this a/c system.so many things that could have been built better...

PhantomBlack · 01-16-2024, 04:24 AM

There is a video on YouTube that shows a guy putting a borescope in on the passenger side interior and it shows the blend door perfectly. So you can cycle the AC and see if its operating correctly or not. I tried it on mine and it only took a few minutes to see if it was the problem or not. The borescope was only like 20-30 dollars on Amazon. I can send you the link to the video of your interested.

SummitWhite11 · 01-16-2024, 07:48 AM

Quote:

Originally Posted by Mr_Draco

Check the freon lately? The high side port uses a rubber ball valve instead of using a schrader valve and leaks like crazy. GM actually recommends replacing the port every year because they are so prone to leaking.

I went through the same issue and thought mine was the blend door but instead the high side port had leaked all the freon out so I would start there first.

I see. I will have to look into it. I drive the car maybe 1-2 times a month and havent really used the AC much lately due to the cold weather. On top of that, I had the AC serviced about 2 years ago at the dealership. Surprised it would crap out like that. Will definitely look into it.

SummitWhite11 · 01-16-2024, 07:49 AM

Quote:

Originally Posted by PhantomBlack

There is a video on YouTube that shows a guy putting a borescope in on the passenger side interior and it shows the blend door perfectly. So you can cycle the AC and see if its operating correctly or not. I tried it on mine and it only took a few minutes to see if it was the problem or not. The borescope was only like 20-30 dollars on Amazon. I can send you the link to the video of your interested.

Cool yes please send it to me.

Aqua Blue RS/SS · 01-16-2024, 08:16 AM

Quote:

Originally Posted by Mr_Draco

Check the freon lately? The high side port uses a rubber ball valve instead of using a schrader valve and leaks like crazy. GM actually recommends replacing the port every year because they are so prone to leaking.

I went through the same issue and thought mine was the blend door but instead the high side port had leaked all the freon out so I would start there first.

Exactly what I was going to say. Check the ac pressures and make sure you aren’t low. The high side port is a joke for sure but all it really takes is a perfectly placed stray rock to the condenser and you’ve got no ac. It could be a leak anywhere. Obviously chances are equally good it could be the blend door too.

Whoomba · 01-16-2024, 08:32 PM

After just dealing with it myself, I don’t think you have a blend door issue. If the blend door breaks it won’t heat up at all, or at least mine didn’t.

SummitWhite11 · 01-16-2024, 09:04 PM

Quote:

Originally Posted by Whoomba

After just dealing with it myself, I don’t think you have a blend door issue. If the blend door breaks it won’t heat up at all, or at least mine didn’t.

This is good to know. I will bring it into the dealership here in town to have them inspect it. They have been good to me all these years and have never tried to sell me a service i did not need.

Moto-Mojo · 01-20-2024, 08:01 AM

Quote:

Originally Posted by SummitWhite11

I have had no issues with using my AC in my 2010 Camaro all these years. My method has always been to keep the knob 2-3 clicks after the Blue O to ensure it is not working too hard and putting stress on the blend door per instructions from many on the forum here...It has worked well until yesterday.

Fast forward to yesterday, I have noticed the AC is not blowing cold air like it should.. more like semi cool but when switched over to full Heat it biows hot air. As of today I decided to try it again on my 70 mile round trip from Palm Coast to North St. Augustine, FL on I-95... It now only blows luke cool/warm air but when switched to full heat... it blows hot air.

Is it the blend door?

Most likely. It could be hanging on by a thread - enough to turn to warm but can't quite close or open enough for cool air. Most, if not all, break completely in two and then the door falls down in the bottom of its housing. Then you get a mix of hot/cool. This is a horrible design, a PIA to DIY and expensive to have done elsewhere. Good luck!

Name: broke blend door.jpg
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Name: broke blend door.jpg
Views: 412
Size: 126.7 KB

IKILLEDSUPERMAN_ZL1 · 01-20-2024, 09:17 AM

Man I think my blend door is going out or gonna be breaking soon also. I'm getting a thumping noise from inside the dash after i shut the car off the last week or two.

Wizard1183 · 01-20-2024, 04:20 PM

Quote:

Originally Posted by IKILLEDSUPERMAN_ZL1

Man I think my blend door is going out or gonna be breaking soon also. I'm getting a thumping noise from inside the dash after i shut the car off the last week or two.

Probably. Just take dash off cut bolts reinstall slap dash back on. Easy peasy. One hour job

SummitWhite11 · 01-20-2024, 05:59 PM

Quote:

Originally Posted by Wizard1183

Probably. Just take dash off cut bolts reinstall slap dash back on. Easy peasy. One hour job

Ha! Cutting out the old blend door and in with the new will be much quicker than taking apart the whole dash!

01-15-2024, 07:10 PM	#1
SummitWhite11 Drives: 2010 2LT/RS Join Date: Mar 2015 Location: Palm Coast, FL Posts: 1,175	I believe it finally happened... AC blend door?? I have had no issues with using my AC in my 2010 Camaro all these years. My method has always been to keep the knob 2-3 clicks after the Blue O to ensure it is not working too hard and putting stress on the blend door per instructions from many on the forum here...It has worked well until yesterday. Fast forward to yesterday, I have noticed the AC is not blowing cold air like it should.. more like semi cool but when switched over to full Heat it biows hot air. As of today I decided to try it again on my 70 mile round trip from Palm Coast to North St. Augustine, FL on I-95... It now only blows luke cool/warm air but when switched to full heat... it blows hot air. Is it the blend door? __________________ 2010 2LT/RS ZL1 Appearance package, Flow Master American Thunder Cat Back Exhaust w/ QUAD TIPS, K&N Typhoon CAI, Ported VMAX TB, OEM GM Brembo Brakes Package w/ Hawks Carbon Ceramic Pads, Night Owl Halo Kit (WIFI), FRONT/REAR Carbon Fiber Wrapped Bowties, Rear Oracle Blue LED Bowtie, Oracle Ghosted Painted Side LED Markers, Silver Side Faded Gills, OEM Satin Camaro Fuel Door, OEM Strut Tower Brace, Detroit Speed Engineering 1.5" Lowering Springs, Koni Orange STR.T Struts, Z28 rear LCA's, Black Magic rear 32" sway bar, 1LE front sway bar w/ DSE end links. Evil Energy Catch Can.

01-15-2024, 08:15 PM	#2
SummitWhite11 Drives: 2010 2LT/RS Join Date: Mar 2015 Location: Palm Coast, FL Posts: 1,175	And to answer anyone's questions... the car is running a steady 201-203 temp mostly and not overheating at all. Radiator is full etc... Air filter is clean... __________________ 2010 2LT/RS ZL1 Appearance package, Flow Master American Thunder Cat Back Exhaust w/ QUAD TIPS, K&N Typhoon CAI, Ported VMAX TB, OEM GM Brembo Brakes Package w/ Hawks Carbon Ceramic Pads, Night Owl Halo Kit (WIFI), FRONT/REAR Carbon Fiber Wrapped Bowties, Rear Oracle Blue LED Bowtie, Oracle Ghosted Painted Side LED Markers, Silver Side Faded Gills, OEM Satin Camaro Fuel Door, OEM Strut Tower Brace, Detroit Speed Engineering 1.5" Lowering Springs, Koni Orange STR.T Struts, Z28 rear LCA's, Black Magic rear 32" sway bar, 1LE front sway bar w/ DSE end links. Evil Energy Catch Can.

01-16-2024, 04:24 AM	#5
PhantomBlack Drives: 2014 Camaro 2SS Join Date: Oct 2017 Location: Brooksville, FL Posts: 181	There is a video on YouTube that shows a guy putting a borescope in on the passenger side interior and it shows the blend door perfectly. So you can cycle the AC and see if its operating correctly or not. I tried it on mine and it only took a few minutes to see if it was the problem or not. The borescope was only like 20-30 dollars on Amazon. I can send you the link to the video of your interested. __________________ Mods: GPI SS1 VVT cam, TSP long tube headers, LSA conversion, ZL1 fuel pump, ADM FPCM, DW 700cc injectors, Lingenfelter solid isolator, Dedicated Motorsports ZL1 reinforced brick, ADM Griptech 2.5 pulley, JLT CAI, Phastek intake scoop, NPP cat-back, GM 3.91 gears, Eaton Truetrac, Tuned by Chris @ CHenry Motorsports.

01-20-2024, 09:17 AM	#12
IKILLEDSUPERMAN_ZL1 Drives: 2011 Camaro SS Join Date: Jul 2017 Location: Wichita,KS Posts: 603	Man I think my blend door is going out or gonna be breaking soon also. I'm getting a thumping noise from inside the dash after i shut the car off the last week or two. __________________ 2011 Camaro 2SS, 6.0 iron block forged bottom end, Dart heads, BTR intake, Huron twin turbo kit, Summit stage 3 twin turbo cam, Circle D stage 4 6L90, 3800 FTI converter. BMR suspension, Viking coil overs, Fore triple pump fuel system.

01-16-2024, 01:05 AM	#3
Mr_Draco Drives: 2SS/RS Join Date: Sep 2008 Location: Western North Carolina Posts: 7,182	Check the freon lately? The high side port uses a rubber ball valve instead of using a schrader valve and leaks like crazy. GM actually recommends replacing the port every year because they are so prone to leaking. I went through the same issue and thought mine was the blend door but instead the high side port had leaked all the freon out so I would start there first.

01-16-2024, 02:36 AM	#4
redcoats1976 Drives: LT W/2LT,blue metallic Join Date: Jul 2016 Location: central florida Posts: 4,915	its a damn wonder there hasnt been a lawsuit over the design of this a/c system.so many things that could have been built better...

01-16-2024, 08:32 PM	#9
Whoomba Drives: 2024Camaro 2SS CE Convertible Join Date: Jul 2013 Location: Texas Posts: 1,302	After just dealing with it myself, I don’t think you have a blend door issue. If the blend door breaks it won’t heat up at all, or at least mine didn’t.