so i had to replace my heater core and i did so by going under the dash on the passenger side

well it was a lot of fun

anyway after im done there is no more leak yay but my numbers on my climate control is flashing at me and i dont know why but everything seems to work fine

also for some odd reason, i have an aftermarket python alarm and after i changed out the heater core, my alarm will go off a few minutes after i arm it,

what i did notice is when i used to arm it the dome light would go out, now it doesnt when i arm it

so im guessing it thinks the door is open therefore setting it off

i have a 96 ssei

any info would be awesome

Was the climate control display blinking prior to the heater core replacement? My first thought is that you have a problem with the air mix door actuator or door itself. The actuator lives on top of the cover of the heater core cover and is attached to the door with a rod with one threaded side (door side) and a loop (actuator side). Several weeks back, the subject of replacing the actuator (wich is a royal PITA) came up. One member suggested replacing the actuator by removing the heater core cover, like you had to do during your replacement, rather than removing the entire dash.

This interested me as my cover is cracked and in need of replacement but I really dont want to take the dash off again. I looked at the possibility of changing the heater core cover but could find no way of disconnecting and reconnecting the air mix door rod unless one was very lucky to release it from the door with a long screwdirver through the glove box opening.

The blinking may be a code 40 which indicates an open, short or need for calibration of the air mix door. On a 96, you will need to have the codes read as there is no manual method of obtaining the codes. Perhaps a trip to the dealer or Autozone (providing they have the capibility) is in order to find out if I'm on the right track.

I have to replace my heater core also.

Do you HAVE to remove the dash?

no it wasnt blinking prior

just the digits for the temp reading are flashing but goes out after a min or two, i havent counted them yet

its odd cuz everything still seems to work just fine it blows nice and hot

go under the glove compartment take off the cover and just start removing stuff, you will also have to open your glove compartment and take out the stuff in there to get to a couple screws

it sucks the dealer told me 4 hours labor but i got it done in 2 1/2 by doing it myself

The flashing lights indicate a fault, and the sequence of flashes means nothing. It could be freon loss, a problem with the AC compressor, or any number of others. The article in Techinfo for retrieving the codes from a 92/93 will help you see what codes may be possible, but only the dealer can extract the codes on your car.

So the dash does not have to come out. That is a releif. It is getting a little nipply down here in FL finally, and I have waited to do it until now. Thanks for the advice. I am sure it will work itself out once I start to dif around.

Change the temp to full cold (60*). See if the air is still hot.

ok so i put it at 60 full cold with a/c on and i have no cold air, i did before the heater core change, so i put some freon in it and tried again, still no cold air

it blows out as hot as 90 as it does on 60 so now im roasting and have the windows down (34 degrees F outside lol) cuz even if i hit the OFF switch it still blows out air

ok so now i got a new problem as i was filling my a/c now my lamp monitor is flashing and dinging saying i got a headlight out! but its not out!!!!! ahhhh the drive to work and back is making me go insane with this constant dinging

and my climate control is still blinking

anyone have any light to shed? if not im swinging to the dealer

again i have a 96 ssei in case anyone was wondering

Your problem is with the air mix door. Three things it could be: actuator has malfunctioned; it is not connected electrically or it is not connected physically to the air mix door via the rod mentioned above. My guess is that it is the last one.



The pic may help you understand what is going on. The air mix actuator and the linking rod is not shown but the air mix door is the white lever thing to the left of the actuator location. In order to remove the cover, the rod must be disconnected from the door. Obviously it needs to be reconnected once you're done. You might be able to reconnect it through the glove box. Remove the black fuzzy part of the glove box and shine a flashlight in there. If I remember correctly, the assembly can be seen between a horizontal steel piece and plastic duct work.

I'll try to get a pic of the inside of my glove box tomorrow.