ac problems ? weak blower

[bigjohn19136]

throwing codes BO361 & BO441 air is cold but not blowing out the correct vents .what do i need to do ? :confused

 

[gmjunkie]

throwing codes BO361 & BO441 air is cold but not blowing out the correct vents .what do i need to do ? :confused

10 amp Fuse # 24 in power distribution center !
Try This!~!!
If it don't work take a couple shots of Te Kill Ya and call me in the morning!:L
Just j/k!~!!

We will try something else!!
Re-Calibrating Actuators




Use the following steps to perform the calibration update:

1. Turn OFF the ignition. Remove the battery positive voltage circuit fuse of the HVAC Control Module.
   Important
   
   The module memory will not clear if the battery positive voltage circuit fuse is installed in less than 60 seconds.
   
   Wait 60 seconds.
2. Install the fuse.

PS Welcome to

 

[bigjohn19136]

10 amp Fuse # 24 in power distribution center !
Try This!~!!
If it don't work take a couple shots of Te Kill Ya and call me in the morning!:L
Just j/k!~!!

We will try something else!!
Re-Calibrating Actuators



Use the following steps to perform the calibration update:

1. Turn OFF the ignition. Remove the battery positive voltage circuit fuse of the HVAC Control Module.
   Important
   
   The module memory will not clear if the battery positive voltage circuit fuse is installed in less than 60 seconds.
   
   Wait 60 seconds.
2. Install the fuse.

could you show me pics location of positive voltage circuit fuse location thank you ! Big john

 

[gmjunkie]

could you show me pics location of positive voltage circuit fuse location thank you ! Big john

 

[bigjohn19136]

just pull it wait 60 seconds reinstall an see what happens . thank you when i get home from work today i'll try it hope it works

 

[gmjunkie]

just pull it wait 60 seconds reinstall an see what happens . thank you when i get home from work today i'll try it hope it works

If it don't work there are a few more things that can be done!~!!

This is just first on the list!~!!

 

[bigjohn19136]

i allready found an repaired a broken black vacume line behind the battery .that didn't repair it ( yesterday) have to start somewhere

 

[gmjunkie]

i allready found an repaired a broken black vacume line behind the battery .that didn't repair it ( yesterday) have to start somewhere

Did you happen to check the 1 way Vacuum Check valves while you were there?~??:confused

 

[gmjunkie]

Oh man,I screwed up.................................

I gave you the wrong fuse and location!

Won't hurt anything,Just the wrong HVAC fuse.

The fuse your looking for is in fuse panel under the passenger side floor panel!
Just lightly pull the top of the floor panel back and slide up!!
Black box underneath and remove the cover!
Fuse #18 (10 amp)
What we are wanting to do is make the HVAC controller loose it's memory and reset it's self and all the actuators!~!!
Sorry,Thats what I get for having 9 service programs running at once!~!!

 

[bigjohn19136]

wrong fuse

pulled the fuse you told me to an nothing same old **** cleared all codes last nite took car out today checked codes got two BO441H & BO361H an no i didn't check the vacume check valve (where is that located ) took my car back to my garage .tomorrow i'll pull fuse # 18 an see what happens an look for the vacume check valve how do i check an see if it's working rite ? i also want to thank you for taking your time an answering all my questions

 

[gmjunkie]

pulled the fuse you told me to an nothing same old **** cleared all codes last nite took car out today checked codes got two BO441H & BO361H an no i didn't check the vacume check valve (where is that located ) took my car back to my garage .tomorrow i'll pull fuse # 18 an see what happens an look for the vacume check valve how do i check an see if it's working rite ? i also want to thank you for taking your time an answering all my questions

I wouldn't worry about the check valves much on a C5 there away from the engine heat under the finder with the vacuum reserve tank!C3's and C4's were on the engine and went bad purdy often!

How many vacuum lines did you have to repair,usually the one from the vacuum port on the engine go's bad,but any of the 3 will scramble the HVAC Controlers Brain!~!! So it needs to be reset by killing the power to it!~!When it resets,it fully swings All of the Actuators and brings them back to center,so the HVAC Module knows where there at!~!!

 

[bigjohn19136]

ac

i'm going over my garage first thing tomorrow an pull the # 18 fuse an see what happens if that don't work i'll give you a call thank's Big John philly

 

[gmjunkie]

i'm going over my garage first thing tomorrow an pull the # 18 fuse an see what happens if that don't work i'll give you a call thank's Big John philly

Oh,I forgot to tell you.Set the passenger temp knob striate up!~!!(or in the middle if yours don't have a dot!)

 

[bigjohn19136]

ok will do

 

[bigjohn19136]

ac

went over garage pulled fuse #18 turned passenger control knob straight up nothing same old $hit dissconnected battery waited five hooked it back up same codes cleared them took a little cruise same codes and still air comes out both defroster an center vent at the same time ad whats next ?

 

[gmjunkie]

went over garage pulled fuse #18 turned passenger control knob straight up nothing same old $hit dissconnected battery waited five hooked it back up same codes cleared them took a little cruise same codes and still air comes out both defroster an center vent at the same time ad whats next ?

Unfortunately there is not much more that we can do on line,You'll probly have to take it to a Dealer or someone that has a Tech II Scanner and a Service Manuel or GM Stand Alone Service Program so they can do more technical component and circuit testing!~!!

I've got what it takes here,But I'm 600 miles from Philly!~!!

My guess is the left actuator is faulty,But that is only a guess without proper testing! These parts are too expensive to be doing any type of swap out trial and error methods.

Sorry,We tried!

 

[bigjohn19136]

ac

thank you for taking your time an helping me out i kind of knew it wasn't going to be an easy fix thats just the way it goes sometimes . by any chance do you have a pic of where the vacume line goes into the engine an how can i access it just might want to check that out as a last resort.before taking it to the shop

 

[gmjunkie]

thank you for taking your time an helping me out i kind of knew it wasn't going to be an easy fix thats just the way it goes sometimes . by any chance do you have a pic of where the vacume line goes into the engine an how can i access it just might want to check that out as a last resort.before taking it to the shop

It's not easy to access,it's on the back of the intake! No way I could get a camera back there.It gos to a vacuum port back by were the power brake booster hose hooks up,small hard plastic line with a rubber nipple on it at the intake port.It runs into the wiring harness behind the engine and comes out of the harness behind the battery down to the vacuum reservoir and check valves, then from the check valves another hard plastic line comes back up behind the battery into the harness that runs threw the cowl up under the instrument panel to the vacuum control module!

PS I never had a problem with the line at the engine,But I have had the line from the engine broken behind the battery!

 

[Junkman2008]

Let me see if I understand your problem. The air blowing is the correct temperature, it's just not blowing out the correct vents?

 

[bigjohn19136]

ac issues

ok installed new actuator an a ac head unit air is coming out the rite vents now but i'm still throwing the same codes BO361 H & BO441 H cleared them keep coming back . read somewere that i have to cycle the ignition 50 times for the codes to clear for good am i rite ? thanks john