Question about 2004 Jeep Grand Cherokee

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A/c only comes out the defroster. selector does nothing

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Check your blend air door

Posted on Jul 12, 2010

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It is a vacuum tube that got disconnected on the right back side of the engine. There are a few tubes there, one of them has lost suction to switch the vent

Posted on Jul 15, 2010

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There is a small (about 6" long) 1/4" vacuum tube located behind the passenger side headlight. This is probably cracked (mine was). Remove the bolt holding the headlight assembly in place (1/4" socket). Use a big screwdriver to pry lightly on the upper right corner of the assembly to pop the ball and socket joint loose. Just behind that is the vacuum hose that needs to be replaced.

Posted on Sep 05, 2010

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1 Answer

05 malibu heater vents blowing incorrectly


The are two controls on the heater. One is the blend door and that controls hot and cool, the other is the mode selector door and that changes the place air comes from. You should be able to see those and the area that controls the air in the plenum. The plenum is behind the glove box. Open the glove box all the way and see if the controls are visible. Activate the mode control to see if the lever moves on the plenum, the problem could be anything from a broken lever, bad control, loose control, or something that fell down the defrost vents.

Feb 20, 2014 | 2006 Chevrolet Malibu

1 Answer

Blend door postion selector


According to the book, I'm showing a mode actuator and a blend door actuator next to it. Some models use cables and some use small electric motors to move the doors.
Are you sure you are working on the right door ?

Jul 21, 2013 | 1999 Chrysler Cirrus

1 Answer

MY DISTRABUTION DIAL FOR DEF.,VENT, ETC IS IN DEFROST AND WON'T CHANGE. THE DIAL TURNS BUT NOTHING CHANGES. I NEEN SOME ADVICE ON WHAT TO DO TO FIND PROBLEM AND FIX. THANKS GENO


Here is the info. I hope the pictures show up. please rate assistance. thx.

Air distribution within the vehicle is determined by the function selector switch position. Two airflow mode doors are used to direct airflow within the heater core and evaporator core housing. The function selector switch/cable assembly is used to position these airflow mode doors. Refer to Section 412-00 for description and operation of each of the system functions.
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Function Selector Cable Assembly
The function selector cable assembly moves the airflow mode doors to the desired position using a 2-sided pull-pull type cable assembly. The function selector controls the cable movement. The end of the cable assembly attaches to the airflow mode door/temperature blend door actuating assembly which transfers the cable movement to the 2 airflow mode doors.
An electrical switch is incorporated into the function selector to notify the A/C switch assembly if DEFROST or FLOOR/DEFROST is selected. When DEFROST or FLOOR/DEFROST is selected, the A/C switch assembly will disable the RECIRC request button and send an A/C request to the powertrain control module (PCM) regardless of the A/C request button indicator ON/OFF status.
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SECTION 412-01: Climate Control 2005 Focus Workshop Manual REMOVAL AND INSTALLATION Procedure revision date: 02/25/2004
Function Selector Switch adobe.gif Printable View (173 KB) Removal and Installation
  1. Remove the 4 bolts and position aside the lower steering column cover.
    a0093241.jpg
  1. Remove the function selector knob.
  1. Remove the center instrument panel finish panel.
    • Disconnect the cigar lighter electrical connector.
    a0093247.jpg
  1. Detach the function selector switch.
    1. Disconnect the electrical connector.
    1. Remove the screw and detach the function selector switch.
    n0037059.jpg
  1. Detach the function selector cable and remove the function selector switch/cable assembly.
    e0000109.jpg
  1. To install, reverse the removal procedure.

Aug 04, 2011 | 2005 Ford Focus

1 Answer

The a/c in my 1999 ford f150 works but started blowing out the defrost and by my feet. Nothing comes out the a/c vents. Please help.


floor/defrost is default mode when system looses vacuum.you need to trace lines from the
intake manifold back to mode selector(floor,vent,defrost)in car for vacuum.usually worn crack
vacuum hose

Jun 24, 2011 | Ford F-150 Cars & Trucks

1 Answer

The heat only come out the vents. I turn knob to defrost or floor and it does nothing it just stays on the vents


the selector knob or lever uses vacuum from the engine to open and close the doors that direct the air throughout your dash. check for vacuum leaks.

Dec 04, 2010 | GMC Jimmy Cars & Trucks

1 Answer

My AC air registers only have air coming out of the defrost ducts


In every car, there are fins or flaps inside the dash that rotate that distributes the air flow from the blower to the desired opening, ie defrost, floor etc... This flap is controlled by a linkage which is connected to the selector switch. It may be the linkage is no longer connected, or the fins inside the dash are stuck. If the selector switch moves freely with little or no resistence its possible the linkage is no longer connected, otherwise the flaps need to be physically looked at.

Aug 09, 2009 | 1989 Ford F 150

1 Answer

AIR CONDITIONING PROBLEM


This is because of the mechanical mode selector. This mode selector need to be refitted. It can be done with in 15 minutes by the appropriate technician.

Jul 25, 2009 | 1998 Ford Windstar

1 Answer

Cannot get heat out of floor vents -only defrost and dash heat


i had a simmiler problem on my 95 chevy pick up. on mine it would not chg. from floor to defrost, no matter where i put the selector. with mine it was the controls. if you go under solutions for k1500chevy gmc trucks it should tell you what your problem is, or give you an idea whats going on with yours.

Jan 12, 2009 | 1998 GMC Jimmy

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