Air Cond, Heater Problem, need ADVICE Help!!!
Racer
Joined: Apr 2005
Posts: 323
Likes: 0
From: N. Phoenix AZ
Originally Posted by 2fast4sanity
looks like I have a project on my hands for this weekend...
Info you, there are only 2 bolts that hold the actuator on, not 3. It looks like 3 when you look at the actuator but the hole on top by the plug is only a guide pin not a bolt.
Burning Brakes
Joined: Jan 2011
Posts: 1,067
Likes: 46
From: Springfield IL.
Oldtimer
Might as well bite the bullet and replace them both and be done with it. You might get lucky and reset them but if it has a cracked gear, you will be resetting them every day and it still won't work right. Buy a couple of these and replace them both. These are the same as the ones most places sell only a LOT cheaper. I've had them in my 99 for 3 years. These only fit the duel zone system, manual system uses a different actuator.
http://www.ebay.com/itm/Heat-Heater-...516?rmvSB=true
http://www.ebay.com/itm/Heat-Heater-...516?rmvSB=true
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Cruising
Joined: Apr 2017
Posts: 12
Likes: 0
Burning Brakes
Joined: Jan 2011
Posts: 1,067
Likes: 46
From: Springfield IL.
Oldtimer
NOT, when I fixed mine I bought one at O'Reillys, cost me 80 bucks. then I started looking for cheaper ones. They're getting cheaper all the time because they are selling a lot of them. They also fit many GM cars and trucks.
Cruising
Joined: Apr 2017
Posts: 12
Likes: 0
Tech Contributor
Joined: Dec 1999
Posts: 32,910
Likes: 2,402
From: Anthony TX
CI 6,7,8,9,11 Vet
St. Jude Donor '08
ALL of the modules, operate on a SERIAL DATA communications line. If one of the modules or somewhere in the serial data circuit gets corrupted, ALL of the modules can report NO COMMS.
What you have to do is figure out what module is causing the issue. GM made that pretty easy. They put STAR CONNCTORS in the circuit that allows you to isolate some of the modules......
There are TWO STAR connectors. Look to the LEFT of the BCM and you will see two thin connectors. The one with FOUR wires allows you to isolate the LDCM, RDCM and SCM. POP the top shorting buss bar off the top of the connector and see if you regain COMMS on all of the other modules.
Isolate the three modules and report back the results.
Here is the STAR schematic:
Bill
What you have to do is figure out what module is causing the issue. GM made that pretty easy. They put STAR CONNCTORS in the circuit that allows you to isolate some of the modules......
There are TWO STAR connectors. Look to the LEFT of the BCM and you will see two thin connectors. The one with FOUR wires allows you to isolate the LDCM, RDCM and SCM. POP the top shorting buss bar off the top of the connector and see if you regain COMMS on all of the other modules.
Isolate the three modules and report back the results.
Here is the STAR schematic:
Bill
Cruising
Joined: Apr 2017
Posts: 12
Likes: 0
ALL of the modules, operate on a SERIAL DATA communications line. If one of the modules or somewhere in the serial data circuit gets corrupted, ALL of the modules can report NO COMMS.
What you have to do is figure out what module is causing the issue. GM made that pretty easy. They put STAR CONNCTORS in the circuit that allows you to isolate some of the modules......
There are TWO STAR connectors. Look to the LEFT of the BCM and you will see two thin connectors. The one with FOUR wires allows you to isolate the LDCM, RDCM and SCM. POP the top shorting buss bar off the top of the connector and see if you regain COMMS on all of the other modules.
Isolate the three modules and report back the results.
Here is the STAR schematic:
Bill
What you have to do is figure out what module is causing the issue. GM made that pretty easy. They put STAR CONNCTORS in the circuit that allows you to isolate some of the modules......
There are TWO STAR connectors. Look to the LEFT of the BCM and you will see two thin connectors. The one with FOUR wires allows you to isolate the LDCM, RDCM and SCM. POP the top shorting buss bar off the top of the connector and see if you regain COMMS on all of the other modules.
Isolate the three modules and report back the results.
Here is the STAR schematic:
Bill