I can see the blend actuator move from the heat position (all the way to the right notch) to the cold position (all the way to the left notch), and then back to the heat side at the beginning of the the ‘2 min run cycle’. I put the heat/cold selectors 3/4″ up from the bottom and put the fan speed on 3 pulled the HVAC fuse and waited 1 min, put the fuse back and started the truck for 2 mins stopped the truck and restarted it at 15 seconds (*the reset procedure.)Īfter all that work there was no change. Update: So I moved the blend door so that it was straight up/down in line with the new part, replaced the blend actuator and put the wire clip back on it. If you do not have a Tech 2 or similar scan tool to diagnose these actuators, you can do voltmeter testing at these connectors. If you need to buy one of these actuators please click here. You can finally remove the actuator from the dash. You will actually need to work through two openings and use both hands to make it easier.Ī magnet on a stick works real well fro retrieving dropped screws and sockets. Disconnect the wiring from the actuator before removing the screws. Using a short 5.5 mm socket and ratchet, remove the two mounting screws. Lift the harness slightly to gain more room to work. Remove the wiring harness clip from the cross bar as shown in the two pictures below. Remove the wiring harness retaining clip from the bracket as shown below. The VCIM can now be wiggled up and the wires disconnected. It will break the mounting panel where the nut is for the phillips headed screw that was removed much earlier. If someone hold it for you be sure they do not use the area in the center of the opening for a fulcrum. The weight of the pry bar is enough to keep the duct work up but you may want someone to hold it for you. I also used a pry bar to lift the duct work slightly to give myself more room. I used a screwdriver handle to keep the duct work lifted. Wiggle the corner of the dash out as shown below. Remove the 7 mm screw from the position shown below. Now remove the 7 mm screw from the backside of the right passenger vent. Do Not mix these nuts up with the ones removed from the VCIM brackets. Remove the two 10 mm nuts at the passenger end of the dash carrier. They are locking nuts so they have to be wrenched all of the way off. There are three 10 mm nuts that hold the module to the brackets. It may not be present on all vehicles as it is related to the Onstar System. The silver box shown below is the vehicle communication interface module. Getting close but more still has to come out. Use the manufacturers recommendations for handling and storing the airbag. Disconnect the connector and remove the airbag. Pull the orange "positive assurance clip" from the yellow connector. Do Not put the long bolts back in the airbag when reassembling. Note that the air bag screws are shorter than the bracket screws. Then remove the two lower air bag screws. Then remove the two upper 10 mm bolts from the air bag as shown in the next two pictures. I also remove the two 10 mm bolts on the driver’s side bracket to make sure the dash will move around freely.ĭisable the air bag or SRS system according to the manufacturers directions. Remove the 7 mm screws on the driver’s side bracket. Now the “U” shaped bracket on the passenger side can be removed. Remove the 7mm screw from the driver’s side of the cross over bracket. Using a ratchet remove the two 10 mm headed screws from the front edges of the bracket on the passenger side. Remove the 7 mm headed screws from the brackets on the passenger side. Remove the wiring hold down clips from the metal brackets as shown below. Now that the dash cover is off and you can see the actuator, but you still cannot get to it. If you have not yet read that post please click here. In the last post I got you to this point. This 2004 Chevrolet Silverado came in with a faulty passenger side blend door actuator.
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