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Air Conditioning anomaly after build.

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16 replies to this topic

#1
socalaviator

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HKS GT1000 build. Still can't figure this one out.

Air Conditioning nice and cold on upper (round) vents.
When I switch to lower vents air does not come out cold but rather warm. What could it be?

Before build, air was ice cold for all vents with no issues.

#2
7racer

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thats a weird one

 

no idea


In7anity!!


#3
forty-two

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HKS GT1000 build. Still can't figure this one out.

Air Conditioning nice and cold on upper (round) vents.
When I switch to lower vents air does not come out cold but rather warm. What could it be?

Before build, air was ice cold for all vents with no issues.

 

Ah, the a/c ducted to CAI mod - thanks for the hint! More a/c = more POWAAH!


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#4
socalaviator

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Ah, the a/c ducted to CAI mod - thanks for the hint! More a/c = more POWAAH!


Now with my new build I have enough power I just need more AC!!!

I even have my hot parts ceramic coated and the downpipes heat wrapped.

#5
legertas

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three causes if AC does not start - not enough pressure of freon , freon pressure sensor not connected or damaged  or temperature sensors (outside and in cabin ) not connected  


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#6
kbrenay

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three causes if AC does not start - not enough pressure of freon , freon pressure sensor not connected or damaged or temperature sensors (outside and in cabin ) not connected

His AC is cold just not in lower vents...

#7
socalaviator

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three causes if AC does not start - not enough pressure of freon , freon pressure sensor not connected or damaged  or temperature sensors (outside and in cabin ) not connected


AC does work but temperature not cold enough. It used to be much colder before my build and now it is not cold enough on warm days.
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#8
2highpsi

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Air Conditioning nice and cold on upper (round) vents.
When I switch to lower vents air does not come out cold but rather warm. What could it be?

 

 

^ This sounds like a blend door issue.  

 

AC does work but temperature not cold enough. It used to be much colder before my build and now it is not cold enough on warm days.

 

^ This is different than what you described above, but merely seems like a refrigerant issue.  If your motor was dropped out of the car, the refrigerant would have been evacuated from the system, then refilled after reassembly.  Maybe they just didn't get enough back in.


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#9
socalaviator

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^ This sounds like a blend door issue.  

 

 

^ This is different than what you described above, but merely seems like a refrigerant issue.  If your motor was dropped out of the car, the refrigerant would have been evacuated from the system, then refilled after reassembly.  Maybe they just didn't get enough back in.

Yeah.  As the temperature got warmer in the last 2 weeks. (increased from the 70s to the 90s) I also started to notice the temperature was not as cold as it used to be. (even the uper vents)

 

I did a small experiment and ran the AC in my garage right after a cold start and the temperature of the air coming from the top and bottom vent are the same.  After the engine warms up the top vent is colder.  I'm starting to think the heat soaking of the bottom vent overcomes the cooler air bypassed through those ducts.  I think the air is not cold enough to overcome the heat soaking.  I'm leaning towards a refrigerant issue.  It might not have been refilled properly or to the correct pressure.  WIll probably have the dealer diagnose the issue.  


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#10
Tim

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AC does work but temperature not cold enough. It used to be much colder before my build and now it is not cold enough on warm days.


Just remember your creating a lot more heat after your build. When AMS was test fitting the heat shields on my car back in the day, they had to pull the engine 17 times to get it right or your feet would fry
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#11
socalaviator

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Just remember your creating a lot more heat after your build. When AMS was test fitting the heat shields on my car back in the day, they had to pull the engine 17 times to get it right or your feet would fry

You are absolutely right Tim.  For this reason we not only installed the supplied heat shielding by HKS but we also ceramic coated all the hot parts and exhaust wrapped the downpipes as well.

 

With that being said, I don't want to start throwing money at different possible solutions (racharging the gas, diagnosing the AC system, etc...) if this is what is considered "normal" after a build.  If this is normal after a build I will let it be an accept it as is.  If not, I'd like to try and find a fix. It's starting to get hot!

 

Btw, I just whooped up my first bike.  A Yamaha R6.  Beat him by about half a city block.  My 8 year old step son said: "was he racing us?"  when I replied that he indeed was and asked why, he said:  "because he was so far back" lol


Edited by socalaviator, 05 June 2018 - 07:18 PM.

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#12
Tim

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You are absolutely right Tim.  For this reason we not only installed the supplied heat shielding by HKS but we also ceramic coated all the hot parts and exhaust wrapped the downpipes as well.
 
With that being said, I don't want to start throwing money at different possible solutions (racharging the gas, diagnosing the AC system, etc...) if this is what is considered "normal" after a build.  If this is normal after a build I will let it be an accept it as is.  If not, I'd like to try and find a fix. It's starting to get hot!
 
Btw, I just whooped up my first bike.  A Yamaha R6.  Beat him by about half a city block.  My 8 year old step son said: "was he racing us?"  when I replied that he indeed was and asked why, he said:  "because he was so far back" lol



Love story’s like this, nothing better than fucking a bikes day up :)
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#13
socalaviator

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Love story’s like this, nothing better than fucking a bikes day up :)


After the race The kid on the R6 did the "bowing down" motion after the race. Nice guy. He kept looking back at my car after the light turned green in amazement. Lol

He chased me down, taunted me with wheelies and then got his ass whooped. It was epic.
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#14
Tim

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Haha those are my kind of nights. I get so wound up I can’t go to bed till dawn, I love embarrassing bikes.They never expect it
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#15
droptopp

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+1 may not have enough Freon. Can get a quick pressure check. First build that happened to me and just an A9 so not too hot.

+1 on bikes - three R1’s rolled on and I gave the lead guy the jump. Trashed all three and slowed down - lead guy pulls up next to me and starts beating on the side like he was riding a horse - hilarious.

Be safe ;)
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#16
Tim

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Thanks man I have a run with a Nitrous busy coming up,if it ever stops raining. That should be real fun :) 200+
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#17
socalaviator

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+1 may not have enough Freon. Can get a quick pressure check. First build that happened to me and just an A9 so not too hot.

I'm hoping this is the case. The fact it does come out slightly cold gives me some hope it's not a big issue. Chris Heimburg, a well known GTR tech in the industry, is close to me and said he will look at it.

+1 on bikes - three R1’s rolled on and I gave the lead guy the jump. Trashed all three and slowed down - lead guy pulls up next to me and starts beating on the side like he was riding a horse - hilarious.

Be safe ;)

  

Thanks man I have a run with a Nitrous busy coming up,if it ever stops raining. That should be real fun :) 200+


Hahaha. Hilarious. The Turbo Busa sounds like a good race. Get some video!
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