Question about 1995 Chevrolet G20

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Heat or air not blowing out of any vents in my 95 Chevy g20 van

I have already replaced motor and fan and switch panel. Vac lines are all hooked up also.

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The heater control valve might be broken or plugged

Posted on Dec 13, 2016

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1 Answer

My 95 Chevy g20 van will not blow heat or air from any vent


I would recheck to make sure that control switches are hooked up. other than that you could check to make sure your air ducts are connected.

Dec 10, 2016 | 1995 Chevrolet G20

1 Answer

My 93 chevy g 20 vans air stopped blowing but when you move the switch you can still hear the compressor engage, before this happened it would come on and off if you slammed the door what could it be?...


Check blower motor. Compressor is doing its cold air work but you need the blower fan to get it into your can/van. You could simply have a loose connection. Follow the wires and try unplugging it and pluggin' it back in. Could also be a fuse or relay. When you say you slammed the door, sounds like a loose connection. Any wires hot or being pinched? See anything thing that looks melted under there?
Also, are you hoses connected to your vents under the dash???? That is easy enough to unscrew and check. Good luck

Jun 14, 2011 | 1993 Chevrolet G20

2 Answers

The air conditioning does not blow through front vents but through windshield vents, what is the problem?


This is a common problem on all Astro/Safari vans. The problem is a leak in the vaccum lines that control the vaccum switch responsible for changing air direction from the defrosters, dash vents, floor vents..etc.
Many of the problems that plaque the Astro/Sarfari vans and many other "Mini-Vans" is the build up of excess heat in the engine compartment. It\'s a tight place to put a V6-4.3 Vortec engine and the heat generated bounces back and cooks everything on the engine (coils, modules, sensors, wiring, and of course plastic vaccum hoses). No need to mess with your switches or anything behind the dash -- replace those thin plastic vaccum hoses to operate the vaccum switch (located just below the A/C canisters, to the right of the heater/ac blower housing) and your dash switches will magically send heated or cooled air where you want it.

Oct 25, 2010 | 2003 GMC Safari

2 Answers

1991 Chevy G20 My Van does not produce much heat. If I turn the fan up i get cool air yet if on low or off i can feel heat just at the vent. If i am driving a while i seem to get adequate warm air but...


The heater core may be coroded and pluged up. Its common on older cars. f the cooling system was drained recently and refilled its possible there os air in the system which will block the flow through the heater core. You should also check the valve ,usually on heater hoses to make sure it is opening and closing properly when you turn the temp up.

Oct 22, 2010 | 1992 Chevrolet G20

1 Answer

When i switch my heat or air from defrost to aut or vis versa the air only comes out defrost vents what wrong?


The vent doors in and under the dash are conrolled by vacuum lines. Checkthese plastic doors to see if they opperate smoothly and the vacuum hoses are hooked up right. See where the vac lines come from and make sure they r hooked up. Also make sure the vent direction switch is hooked up to the vac lines. Good luck

Oct 10, 2010 | 1992 Cadillac DeVille

1 Answer

1992 chevy g20 van ... AC blows through the lower ducts but not the mail cabin vents. What do I look for to fix this?


Behind the dash, when you throw the lever to change which vents you want air to come through, it can sometimes "slip" over little plastic gears/levers which flip the ductwork to different vents such as floor to the dash vents or defrost. look up from under the dash to see if the vent control switch is actually moving anything underthere.

Jul 02, 2010 | 1992 Chevrolet G20

1 Answer

2000 chevy astro van blower


Yes it could but also check under the hood because it is a very common problem for a vaccumm line to come unhooked causing this problem. Hope this helps, Allen, swiftautorepairs.com

Oct 01, 2009 | 2000 Chevrolet Astro

1 Answer

My 1993 Chevy G20 van stop blowing air from vents


Your blower motor burned out. Usually under the dash board on the passenger side or it could be under the hood on the firewall on the passenger side. Check out Autozones website.

Jun 29, 2009 | 1993 Chevrolet G20

2 Answers

Electronic Control Module Installation 1994 G20 Chevy Van


I just had the same problem. If it is a regular van try under the driver seat in a plastic box. If it is a conversion van try in a pannel just behind driver seat on side of van wall behind a pannel that looks like a vent.

Dec 28, 2008 | 1987 Chevrolet G20

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