Having problems with your 2003 GMC Envoy ?
2003 envoy ac blows cold from defrost and floor but will not dash
\015 Just had the thermostat, coolant and serpentine belt replaced. Now the AC will not switch between the floor, defrost, and dash vents.\015
U have to take your dashboard at the glove compartment to cheack the vacuumpod ot your damper door
Repair Help & Product Troubleshooting for 2003 GMC Envoy
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2003 envoy ac blows cold from defrost and floor but will not dash
U have to take your dashboard at the glove compartment to cheack the vacuumpod ot your damper door ... 2003 GMC Envoy
I have a 2008 ford focus se and when I got off work the other day the vents will only blow through the defrost and the floor. But no dash vents work. How can I fix this? It's still cold air. Web I set it to defrost it blows defrost and when I set it to feet it blows feet. But when I set it to dash it blows both feet and defrost.
Under the dash there is a vacuum control that opens and closes the doors. Door could be stuck ... Cars & Trucks
I have a 2004 Impala. My heater and defrost blows cold air. It takes forever to start getting warm - I have to drive about 30 minutes before it starts to get warm if it's going to. If I turn the blower control down a lot, sometimes it will get warmer for a while. Or I can switch from dash to floor and it will be warm for a few seconds, then turns cold. Sometimes it fluctuates from cold to warm and cold again, it's very frustrating. I also hear a gurgling sound in the dash sometimes, don't kn
Staqr by making sure the coolant level is full in the radiator. When the engine is cold remove the radiator cap. If you can't see coolant in the radiator you'll need to add some. once it is full replace the cap and start the engine. Do you have heat ... 2004 Chevrolet Impala
I have an 01 Jeep Grand Cherokee. When you turn on the air conditioning air does not blow out any of the vents except a small amount of air (cold) will blow out the defroster vents by the windshield. If you turn the dial to reposition the vents weather it be the floor vents or the dash vents air still will not came out any vent. You can hear the blower blowing but it just will not come out the vents. When I say air will not come out any vent I literally mean no air, not hot or cold, nothing
Behind the center counsel between the floor and the heater housing is a part that is called the blend door actuator. these usually go bad and have to be replaced. ... 2001 Jeep Grand Cherokee
2007 chrysler town and country a/c blows cold through floor and defrost vent but not dash vents
Often a sign of a blend door problem. The blend door or doors are in the heater a/c box behind the dash. ... Chrysler Town & Country
My 1995 ford ranger XLT 4x4 super cab will not blow cold air out of the dash vents,defrost,or floor vents, with the air conditioner on,but i can feel cold air under the dashboard,so, the a.c. must be working,but it won't circulate.The heat blows out fine,so the ducts cannot be blocked.What could the problem be? The dashboard has never been removed.
It works off of vacume. The butterfly in your ducks arent opening, to allow the cold air to pass. good luck . ... Ford Ranger
Only one dash vent in my 1999 Grand prix is blowing out air. It's cold air, and warm air is blowing out of the floor vents, and nothing changes with the knob is turned, (bi-layer, dash, defrost etc..) I'm on a budget and can't afford to take it in, is there anything I can do to help, I'm in Florida and its getting too hot for the kids in the backseat.
It soounds like some of the ducting came loose, maybe under the dash. maybe elsewhere. Check the connections on the back of the air control section. ... Pontiac Grand Prix
AC issues My battery died and after replacing it the a/c will only blow through the passenger and rear dash vents. The driver's side vents are blowing hot air but not very hard. Cold air is also coming out of the defrost vents but not the floor vents. I took the #36 fuse out of the rear fuse box and waited 3 mins before putting it back and started my car. I let the car run for 2 mins before turning on the AC. When I turned the car on there were knocking noises coming from the dash and after
The problem is either an actuator or the door associated with it. Sometimes the gear strips, especially when the system goes thru a recalibrate after power has been removed and reapplied. Below is a diagram of the locations of the actuators. ... 2002 Chevrolet TrailBlazer
I have a 1993 Olds Cutlass Supreme. The Defrost works and it blows air out of the floor vents. It does not blow warm or cold air out of the dash vents???????
The heater control panel possibly bad. the panel where your heater is at. on the dash,actually where you're turning the directiona for floor and dash, or it could have a bad connection on switch behind the panel.have you spilled liquid on dash in the ... 1997 Oldsmobile Cutlass Supreme
My 2004 gmc envoy loses engine pressure when i have the air conditioner or the heater on. Also, the air conditioner will not blow out the dash vents but blows out the floor and defrost just fine. Autozone says i have a secondary air intake problem.
Don't know what you mean by engine losing pressure, but as far as the air not coming out of the correct vents, try the following;Pull the HVAC-B (#36) fuse for 30 seconds (located in rear fuse panel, under seat), then\012 put it ba ... 2004 GMC Envoy
Air only blow out of my defrost vents and sometimes the floor but not out of the dash vents. it still blows cold air though. how do i fix this
It sounds like you might have a vacuum leak or the switch is bad. Going to the dealer isn`t as bad as it used to be. I spent 5 days trying to change the front u-joint for the 4x4.I took it to the Dodge dealer and they did it in 2 hours.Was much cheap ... 2004 Dodge Ram 3500 Truck
I have a 2002 chevy trailblazer. Yesterday my heater worked fine today I had the battery replaced and now I notice when the heater is turned on it is only blowing heat on the drivers side. Defrost floor and dash vents. But on the passenger side all of these vents are blowing cold air. Yes I have the manual climate controll levers slid into the up position. How can i solve this problem and might it have anything to do with the battery change? Doug
Needs to be reprogrammed with a TECH 2 at a GM dealer. ... 2002 Chevrolet TrailBlazer
Sorry for the lsck of information on the low pressuer swicth on my 2005 uplander the ac started out working somtimes and then not.finally it stopped all together. i can run a hot wire from battery to ac compresser and make the ac run and it will blow cool air not cold out of the upper dash vents and rear cargo floor vent the only controls on that panel that work are the fan knob and defrost button the ac button,vent selection knob and hot cold knob dont work. i was told the low pressure swicth b
It is most likely the control head,you will have to replace it to get the ac to work correctly. ... Chevrolet Uplander
Air conditioning control panel button not working on 1996 chevy truck . The control knob for the defrost/ dash vent/ floor is only working in the floor position . I checked the 10 amp AC fuse under the hood and is good . AC is not blowing any cold air .Any help would be greatly appreciated..... thank you
... 1996 Chevrolet K1500
Vent controls wont switch from defrost to any other selection replaced switch already I have a 2003 ford windstar, heat and cold air will only blow from the window defrost vents, any other selections won't work like dash, and floor.
You have a vacuum leak.Defrost is the default postion(no vacuum).\015\012See if you can locate the small black vacuum line that goes inside the vehicle on the passenger side near the heater core. The trace it back,should see it going to a canis ... 2003 Ford Windstar
I have a 2006 Dodge Grand Caravan. The Heat / AC blower runs fine, however, the air never gets warm when in the "heat" position. I only seem to get cool / cold air or it will blow cold air when AC is turned on, but absolutely no warm / hot air from any position (defrost, floor, dash vents, ect.).
... 2006 Dodge Caravan
When i have the heater/defroster on the heater below blows cold air while the defrost blows hot. when i switch to just defrost the bottom heater stays on and blows cold air. when i have front dash and defrost on it blows hot but again the heater below blows cold?
Heater blowing cold, no leaks, not overheating, blowers work ... 2003 Dodge Durango
Air only blows from the dash vents and will not change to the defrost or floor, and I have no heat - only cold air. Air conditioning seems to work. 1994 jeep grand cherokee v8 with climate control.
The damper or flapper ibside the heater box is not moving. If they are vaccum actuated could be lack of vaccum or bad diafram in the actuator...replace ... 1994 Jeep Grand Cherokee
Vehicle has no heat and blows cold air out dash vents not defrost or floor vents
... 1995 Audi A6
Changed battery and now the A/C won't blow through dash vents, only the defroster vents and floor vents. Also, driver side is cold and passenger side is hot. Did not have this problem prior to battery change.
Set all HVAC control to off or CCW, disconnect battery for about 10 minutes. Reconnect battery and do not touch any HVAC controls for several minutes. The system will calibrate itself at this time. If this does not fix the problem, you have one or mo ... 2004 Chevrolet TrailBlazer
My 03 envoy blows heat out at floor and defrost but not vents i swapped out the control with one from my truck and didnt change is it the controller that opens and closes vents under the dash?
... 2003 GMC Envoy
Chrysler cirrus, heater blows warm through dash but cold on defrost and floor
If the heater is working correctly, and the air temp does not stay the same coming from different outlets, the problem could be a blend door under the dash. The blend doors direct air thru the heater core and out the vents. ... 1997 Chrysler Cirrus
My 2009 Ford Focus Will not blow any air from the Dash vents. it automatically blows from the floor vents if on max A/C or the dash vents are selected, but will blow from defrost vents if I select th
... 2009 Ford Focus
A/C blows cold on floor and windshield, not thru dash vents
This recently happened to my mustang and I found a broken vacuum line that connected to a "vaccum block". I'm not sure of the name but if you follow the vacuum line from the master cylinder it will lead ya right ... 1991 Buick Park Avenue
2004 Silverado 2500HD a/c is blowing out the defrost and will not switch to dash vents? When I turn the truck off and back on it will blow from floor vents, then dash vents, then blow out defrost vents. Knob doesn't change anything. Any suggestions?
Sounds like it is going through the recalibration process. We run into this issue when replacing the batteries on these. In the underhood fuse block there is a HVAC fuse. Pull it, wait 30 seconds, put it back in, and turn the key to the run position. ... 2004 Chevrolet Silverado 1500 Crew Cab