Question about 2001 Chevrolet Impala

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Blower selector switch not switching

My 2001 impala switch for defrost, vent, floor will not switch, it is always stuck on floor mode. what do i have to fix? to solve the problem.

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I fixed this by repairing the vacuum line. It had gotten battery acid on it and ate right thru it. Cut off the broken/dry rotted ends and splice together with some vacuum line tubing from autozone.

Posted on Aug 16, 2015

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Hi,
more than likely you will need a new climate control switch unit
Scrap yard or eBay for less than $30 most times.
This is the cheapest, easiest and fastest way to check or repair these.
Art

Posted on Aug 04, 2008

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1 Answer

Selector for air mode stuck on defrost


This is caused by a low engine vacuum, the engine vacuum is low when you accelerate, the HVAC system loses vacuum to the mode control vacuum switch and defaults to the defrost ducts for safety. You likely have a leaking mode control vacuum switch in the control panel of the heater AC system (HVAC).

Jun 16, 2016 | 2001 Ford Windstar

1 Answer

Why does turning vent knob (defrost, mix, dash,floor,etc.) have no effect?


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Jan 01, 2016 | Cars & Trucks

1 Answer

Why wont my 2001 ford windstar blow out of vents ? only on defrost?


Air Flow Control
Air flow control is accomplished in the following manner:
  • Primary control is through the function selector knob , mounted on the heater function selector switch, which is part of the heater control .
  • The function selector knob has the following positions: OFF, PANEL, PANEL/FLOOR, FLOOR, FLOOR/DEFROST and DEFROST.
  • The heater function selector switch combines a vacuum selector valve with an internal electrical switch.
  • The vacuum selector valve directs source vacuum to various vacuum control motors (18A318) . Refer to the System Airflow Schematic and Vacuum Control Charts.
  • An internal single-pole electrical switch is also controlled by the selector. The switch controls the electrical supply to the heater blower motor switch (18578) .
  • The position of the function selector knob determines the manner in which the system will operate.
  • Each position of the function selector knob is detented for positive engagement.
  • You probably have a vacuum leak , Pull heater control panel an check for vacuum . A broke vacuum hose or The vacuum selector valve is bad ! Or check for a vacuum hose in the engine compartment being off somewhere !

Mar 08, 2015 | 2001 Ford Windstar

1 Answer

My ac unit is working but will not blow air out of the dash vents. The blower is working


Hey man if the blower is working and air is coming from your other vents i have a few ideas.First i would start by checking your vent selection switch something may be stuck where the dash vents open. If the selector is fine you should try checking the ducting behind the dash it could have come apart or simply be cloged where it routes air to your dash. hope that is helpfull.

Aug 11, 2012 | 2004 Chevrolet Tahoe

1 Answer

Cant switch between defrost panel or floor heat stuck in defrost


sounds like maybee a blend door issue or a vaccuum lek

Nov 30, 2011 | 2001 Ford Taurus

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

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

2 Answers

Blower motor vent selection switch not working


the hvac selector switch in the dash may be the problem.You need to remove the switch and look at the connector on the back of switch,see if there are any burnt wires at the connector or switch.It's all electronic and the switches have been known to burn out on this and other model.

May 26, 2009 | 1998 Buick LeSabre

1 Answer

Vent selector inop


U have either lost the vacuum to the mode selector switch (in the dash control) or the vacuum mode selector switch is leaking in the ac/heater control in the dash, u can usually hear a hiss if it is leaking. the vacuum source is the engine, a small hose runs through the firewall on the passenger side to the switch from the eng vacuum source.

May 19, 2009 | 1994 Chevrolet S-10

2 Answers

Air conditioning on a 2000 chevy impala


If it will not switch to any different positions,and you did not have this problem prior to repair.Check for a leaking vacuum line to the control unit.The line should run through the firewall to the control unit.Good Luck!!!

Aug 04, 2008 | 2003 Chevrolet Impala

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