Question about 1995 GMC Jimmy

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Air conditioning system will not change vents

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Check for broken or collapsed vacuum hose to round black vacuum chamber attached to hood. Or see if chamber is cracked it is only plastic.

Posted on Jul 09, 2010

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Posted on Jan 02, 2017

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may have air trapped in it still or thermostat is not working properly..

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Ford Escape Heater Vent Control


suspect a control panel issue as this HVAC (heater, ventilation, Air conditioning ) system should be all electric... If you can pull the control panel out looking at the back of it will answer your question... are the cables or just wires..

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2000 ford 350 super duty 7.3 diesel air condition vents air only coming out of bottom vents


Could be in switch panal or if the system works off of vacumm you could have a cracked line or maybe one off. hope this helps. In most cases wiht ford it is in the switch panal...good luck

Aug 13, 2012 | 2000 Ford F250 Super Duty Crew Cabs

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My air conditioning blows out the heater vents, how can I fix it?


Dear Sir: See the diagram attached and proceed according with logic system.
5_25_2012_8_55_05_am.jpg5_25_2012_9_00_27_am.gif5_25_2012_9_00_44_am.gif

May 24, 2012 | Cars & Trucks

2 Answers

When air comes on it goes to windshield then later to floor before coming out the front vents what would cause this?


Hi there,

There are 2 types of Air-conditioning fitted to vehicles:

1) Manual Air - this is where you turn your temp dial to either Cold (Blue) or Hot (Red) and the heater will continue produces the same temperature at all times, until you manually change the setting.

2) Auto/Climate Air-conditioning - this is the INTELLIGENT aircon system, with many sensors placed around the car's interior. This system allows you to select your desired temperature in degrees (e.g. 18 deg C). Once you have chosen your desired temperature, the system then measures the inside temp at each sensor location. The sensor readings are sent back to your aircon computer and this is where the magic happens:

The computer then directs a priority airflow to the areas of your vehicle which would enable the system to reach 18 degrees, in the shortest possible time (this is why airflow changes between various vent outlets). As the system approaches your desired temperature, you will notice the airflow will slow down just enough to maintain a comfortable 18 deg - this is why they call it CLIMATE aircon.

However, if you choose to override the vent direction (i.e. selecting face vents only), they system will take a couple of seconds to respond to your command.

Cheers,



"If this has helped you in any way, please rate this solution"

May 13, 2011 | Mercury Marquis Cars & Trucks

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

All air stopped blowing in through the vents.


o air coming from air conditioning vents
  1. Check the air conditioner fuse and replace as necessary.
  2. Air conditioner system discharged. Have the system evacuated, charged and leak tested by an MVAC certified technician, utilizing approved recovery/recycling equipment. Repair as necessary.
  3. Air conditioner low pressure switch defective. Replace switch.
  4. Air conditioner fan resistor pack defective. Replace resistor pack.
  5. Loose connection, broken wiring or defective air conditioner relay in air conditioning electrical circuit. Repair wiring or replace relay as necessary.

Apr 27, 2010 | 1986 Toyota Camry

1 Answer

My 2007 Acura TL is having an air conditioning issue... The air is coming out cold from the two vents on the driver's side, but the air coming out of the passenger's side vents is very warm. The air on the...


Navigation has no relevence at all. but what does is the vent system in the dash.there is a flap inside the vents under the dash it sounds like it is not moving on the passengers side.

Jul 30, 2009 | 2007 Acura TL Sedan New Cars

1 Answer

1998 Cadillac sts. The air conditioning blows


YOU HAVE ADD THE WRONG FREON ALL CARS MADE AFTER 1996 USES R/134. FLUSH THE SYSTEM, ALSO CHECK THE BLOWER FAN FOR DEBRIS

Jul 18, 2009 | 1998 Cadillac DeVille

1 Answer

Air condition not blowing cold air


Is any air coming out at all?

If warm air is being blown out, then your refrigerant level is probably low. The car is fitted with a safety cut off, to stop the air conditioning system working if the refrigerant (R134a) level is low.

This cut off only effects the air conditioning, the blower would still function normally.

Apr 10, 2009 | 2003 BMW 325

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