Question about 2000 Chevrolet Astro

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A/c coming out lower vents only

Bad fuse given as solution which fuse?

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Damper is vacuum controlled. Check for broken vacuum line running from manifold to heater control box.

Posted on Aug 26, 2008

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1996 Lincoln Mark 8 AC controllers working blowers working nothing coming out of the vent


I noted your question. You said that NOTHING is coming out of the VENT. Do you mean the interior vents normally for heat and air? Does air blow out of your dash defrost vent? Does blower motor work continuously? If so, I suggest that you check fuse panel at driver's door. If you have your owner's guide, look on pages 251 and 252. 251 shows your interior fuses. 252 shows description for Fuse #9 (10A). You have numerous 10A fuses. #9 is the lowest fuse perpendicular to Fuse #10 (15A). If it is blown, you have some sort of resistance in one of 4 things RUN BY THE FUSE. I went to my mechanic and he told me that the Blower Motor Control Resistor behind the glove compartment was bad. I replaced it (125 dollars) and it was not the problem. Check the fuse. Is it blown? Replace and the system may work normally. If it continues to blow please get back to me. If the system works after replacement, please respond.

Sep 12, 2015 | Lincoln Cars & Trucks

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I have 2000 gran marquis custom moonroof vent stuck open no power where is motor located?


There should be an access door on headliner.if not, you'll have to remove, lower headliner...I would start at the fuse panel and make sure the fuse is ok

Mar 13, 2014 | 2000 Mercury Grand Marquis

1 Answer

Heat or A/C does not work in my car?


Either you have a blower motor FUSE that has gone bad "typically the problem" or you have a burned out blower motor. Usually the cause of a blown or burnt motor if not a Fuse, Is caused by the vented air from outside letting debris like sticks or leaves,acorns etc. enter the fan box. If ANY of the mentioned items get caught in the "blower box" then it will usually blow the fuse and or burn up the blower motor. Start in your fuse box and look for a burnt fuse and replace with same size fuse. If it blows the new fuse quickly then you have debris in "Blower box" that will have to be removed before adding yet another fuse. I have had the same problem and I found a bunch of leaves in my "Blower Box". I removed the leaves and replaced the burned out fuse. And I have had no more problems with the blower motor blowing air.

Nov 09, 2013 | 2004 Ford Taurus

2 Answers

2002 TRAILBLAZER no rear heat. Rear fan works only blows out of lower vents. Will not switch to upper vents even on AC. Have heard clicking sounds from somewhere in the rear. Radiator is full. This...


Hello! One of the Blend Door Actuators is defective...There are three different Actuators...See picture #1...I would suggest that The Mode Door Actuator is defective...It is DORMAN Part # 604115...Cost = around $50..It is on the lower left side of the pictured HVAC unit....The part is shown in picture #2....After replacing The actuator...Pull the heater fuse...Start the engine...Run for 45 seconds...Turn off key...Replace fuse...This allows the computer to learn the new part...Guru...saailer




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Jan 03, 2011 | 2002 Chevrolet TrailBlazer

2 Answers

2003 trailblazer I have no heat or air coming out of my dash vents


Is it no heat/air when sitting still, or no heat air period? If the heat and air blow slightly when driving you have a bad blower mower/resisitor and its not allowing the air to blow into the cab. If not blowing period when moving probably bad heater controls or fuse... Worst case scanario is you have an electrical problem that needs to be diagnosed

Jul 15, 2010 | 2003 Chevrolet TrailBlazer

1 Answer

The fan does not blow. The switch turns, AC button lights like it is getting power but there is no air moving. Can hold hand over the vent and feel cool/hot air but there is nothing behind it moving it. ...


fuse located lower leftside of dash, but i think you might have a bad blower motor, turn it no and try tapping on it if it starts then bad blower it is or test it for power and ground if it has power and ground then its the blower. good luck.

Oct 27, 2009 | 1993 Honda Accord

1 Answer

A/c vents door control not working


Can you hear anything moving in heater when you move the switch to other settings? If not then the blend door is not moving to redirect air flow. There is three things that could cause this, 1 the control switch is bad or 2 the blend door acturator is bad, and 3 linkage for the door has come unhooked or broke, most likely its #1 or #2. First you need to find the blend door acturator and test light the wires to it, there should be 3, 1 hot with key on 2 only hot with switch moved, and 3 ground. If you got power from wires than the acturator motor is bad, if no power switch is bad.

Feb 04, 2009 | 1998 Pontiac Grand Prix

1 Answer

2001 Suzuki XL-7. Heater blows hot one side, cold the other.


No ductwork [to the lower vents] under the dash. They are part of the heater core / blower housing is integrated (all one piece).

After reviewing shop manual, we suspect that one of the three damper flaps is not positioning correctly; or debris has blocked one side (which makes more sense given the symptoms).

We're waiting for the temperatures to get back in the plus numbers to check out the physical arrangement.

Jan 19, 2009 | 2001 Suzuki Xl 7

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