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The first step is to find out how to read the code in the vehicle's ECU. If the codes are read, the technician will try to figure out what might be the reason for the problem. If a fuse is bad, the auto mechanic will try to remove it by finding the fuse for the cruise control system. If a fuse blows, the mechanic will need to take it out and ...Use your socket, ratchet and extension to unbolt the blower motor. Unplug the wiring harness from the blower motor and pull the blower motor down and out. Insert the blower motor up into place. Plug in the wiring harness. Bolt into place with your 7 mm socket and ratchet. Rehook your glove box back in and close it.2. 2001FZ1 Discussion starter. 201 posts · Joined 2008. #1 · Jan 31, 2010. If I have the HVAC controls set to blow out the dash vents and the temp setting to 60, the air flow is very good. When I turn up the heat, the air flow is significantly less. The heat is good, just less air flowing. Is this normal?a/c mode actuator 2006 envoy denali. I recently changed the battery in My 06 envoy denali, after doing this my dash a/c vents would not work, I went to GM dealer to have the mode recalibrated and was told that the mode actuator is bad. They gave me a price of about $600-$700 to install a $79 actuator saying that it will take 6 hrs according to ...After inspecting the belt, there can only be two things left that could be happening: 1. The clutch is not getting a signal to turn on. This indicates some form of wiring problem. -or-. 2. The AC compressor is getting a command to turn on but is no longer able to, which would indicate that it needs replacing. 2.Pull the relay and jumper the relay contact pins. If you swapped out the relay then the computer is not sending a turn-on signal. My relay opens after about 15m of operation, yet if I jumper the relay the clutch engages and blows cold air. I have to assume the high or low sensors are detecting an anomaly.How to fix air that only blows through defrost vent. Chevy silverado. Cheap easy fix..l disclaimer: Terrible video footage.Protip: Venmo @Nicholas-Wellmerli...I have 2004 Trailblazer and had the battery replaced two days ago. After I drove away from NTB my AC, which was working fine prior to battery replacement, will not blow out of front vents When AC "mode" is set to blow out front vents it will only blow at my feet and windsheild. Seems to be cooling well, except air no longer comes out front vents.Vent Selector Switch I have an '03 ZR-5 w/42K. The vent selector switch no longer works properly. I can only get air to blow from the vents in the dashboard. The defroster or floor vents will not work. Although, every once and awhile I will hear a suction noise and air will blow from the defroster and floor vents.6513 posts · Joined 2006. #2 · Jun 3, 2008. There is a mode actuator in the rear to direct air flow (we sometimes call it a mode door). It's a flap that responds to the switch and changes air flow. It's in the rear (behind that panel the floor outlet is in), but I don't know where. But in the try simple things first thought, did u look at the ...2002 Chevy Trailblazer: Heater/AC fan does not work, all heater controls unresponsive. Simultaneous with this Yellow ABS - Answered by a verified Chevy Mechanic ... I have a 2006 chevy Silverado, this week while driving it would flash lights on the dash, specifically the ABS warning light, and read the "service braking system" message.3. Warm Air is Blowing. When you turn on the air conditioning, you expect to feel cold air pour out. However, when the AC pressure switch goes bad, warm air might be all you get. However, this problem is also caused by low refrigerant levels, which should be checked regularly. 4.2006 Rainier HVAC - No air from front vents. I own a 2006 Buick Rainier CXL with the 5.3L V8. Had an intermittent issue with no A/C air coming from the front vents, only side and floor. Used to fix it by turning off the HVAC, waiting a few seconds and turning on AUTO. Now it's failed completely - no air at all.I have a 2003 chevy trailblazer, the dash vents will not produce air flow. I saw the fix here of removing the fuses and - Answered by a verified Chevy Mechanic ... On my 2006 Trailblazer LT, I can not get airflow out (hot or cold) of the four chest vents with vents open. ... 2003 Chevy Tahoe Z71 - vent control stopped working. Air flow only ...3. Remove the instrument cluster trim bezel nuts (2). 4. Lower the steering column. 5. Move the shift lever to the first gear position. 6. Pull on the instrument panel cluster (IPC) trim plate bezel (1) in order to disengage the retainers. Pull in the following sequence in order to disengage the retainers.2005 trailblazer dash vents not working I have a 2005 chev trailblazer I changed out the battery today and the dash - Chevrolet 2003 Blazer question ... When you change air flow direction from defrost ,to floor ,to vent . does air flow change ? Where is the air coming out of ? ... 2006 Chevrolet Blazer. What is the firing order. 2001 Chevrolet ...If voltage goes to the blower motor, it'll need replacing. If there's no voltage, test the resistor (YouTube). 2. AC System Not Blowing Cold Enough. The most common reason for your Chevy Tahoe's AC not blowing cold enough is low refrigerant levels, followed by a dirty evaporator or condenser issues (bad or clogged).3,854 Answers. Pull the HVAC B fuse located inside the truck for 5 min and then place it back in.The short time the fuse is out and placed back in, the control module will attempt to recalibrate all the actuators, by running them CW and CCW until they hit their stops. Then the control module remembers those positions and tries to not slam the ...2002 Chevy trailblazer LT. I'm having a problem with the HVAC system. The driver side is blowing hot air and the passenger side is blowing cold air when the air conditioning is turned on. I have pulled and replaced the driver side blend door actuator. I have followed the steps to do the recalibration.Sometimes, “venting,” or airing our grievances, gets a bad rap. Negative connotations are associated with Sometimes, “venting,” or airing our grievances, gets a bad rap. Negative c...

2003 CHEVROLET TRAILBLAZER. 6 CYL. 4WD. AUTOMATIC. 12,000 MILES. Air is not blowing out of my front dash vents regardless of whether the a/c is on or off. The back vents in the middle row of the car work fine. And if any air does decide to come on, it is barely coming out even if you have the fan set on full blast. Help, please!Henner Discussion starter. 5 posts · Joined 2009. #1 · Nov 8, 2009. I have a 05 Trailblazer and the Heat and Air will not work they will not blow out of feet or defrost or vents in the front or rear. When you turn the knob from vents to feet to defrost you can hear something making a noise behind the dash. And if i turn on the AC the idle ...Replacing the Driver Side Blend Door Actuator (ACDELCO 1572972) and reseting the blend doors for the front A/C system. My A/C was stuck on just hot but this ...1. Loose Connections At The Wiring Harness. You replaced it but the new blend door actuator is not working! If the wires come loose at the wiring harness at the back of the module for actuators, replacing the actuator alone will not get any luck. Despite changing the actuator, the blend door actuator will not get the power it needs for operating.

2004 Chevy Trailblazer with broken front vent actuator. For some time my trailblazer would not blow air out of the front vents. It is a common problem for ...1.With key off, remove fuses #36 & 39 from rear fuse box, wait about 90 seconds and then reinstall. 2. Turn key to ON position (don't need to start engine), do not touch any HVAC controls for at least 90 seconds. 3. Start engine and check operation of HVAC, if there is still a problem repeat steps 1 & 2 one more time.I cycled through auto and manual, and the defrost/AC/heat vents, but could not get it to blow air through the vents. All else seems to be OK, and very rarely, it will blow air through the vents, but not all the time, and not at the level the system says it is (ie. if showing "high", it will blow "low"; and that's if it's blowing at all ...…

Reader Q&A - also see RECOMMENDED ARTICLES & FAQs. Locate the actuators and change the temp and air direction, the a. Possible cause: What's up guys bring you as a video showing you guys how to fix the AC .