Question about 1994 Ford Econoline

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No heat out of front or rear vents or defroster

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  • jacko99 Nov 23, 2013

    Try taking the thermostat housing off 2 see if its still got a thermostat in there if it hasnt - put one in!!!!

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Blend doors probly inop in hvac system

Posted on Nov 23, 2013

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SOURCE: My front defroster doesn't work

Their is a vacuum actuated valve that redirects the flow of air from the panel to the defrost vents when the defrost is selected. I would check the vacuum line running to the valve while the vehicle is running with the defroster on and check whether or not the line is pulling a vacuum to actuate the valve, if not you obviously have a bad line or vacuum line fitting. If you have suction on the vacuum you will need to check the valve and see that is functioning properly. The valve is usually located under the dash on the passengers side. If you are mechanically inclined i would go to a local auto part store and pick up a repair manual for your car for about $20 as they contain diagrams and info that will save you alot of money.

GGBMDB

Posted on Dec 08, 2008

  • 14036 Answers

SOURCE: AC NOT BLOWING THROUGH DASH VENTS

PROBLEM COULD BE BLEND DOOR ACTUATOR OR FAULTY AC CONTROL MODULE.

Posted on Jul 06, 2010

  • 1 Answer

SOURCE: 2004 Ford Expedition XLT, front blend door actuator

No airflow (cold or hot) through main vent ducts. Can hear the blower working, can feel air coming from in and around the dash area. Seems lik something is blocking the majority of air from coming through the vent openings. They(vents) are open but no air.

Posted on Aug 06, 2011

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VAG COM Fault Codes


ERROR CODE (DECIMAL) - CODE ERROR - ERROR CODE (OBD II) -The description ERRORS
00000 0000 O End
00001 0001 braking system control unit
00002 0002 gearbox control unit
00003 0003 control unit
00004 0004 control unit for engine gas-J659
00016 0010 Vers. electric space heater, rear right damper leg / defroster-V195
00017 0011 Vers. electric space heater, rear left footwell flap / defroster-V196
00018 0012 Executive electric cold air flap-V197
00019 0013 Executive damper motor warm air-V198
00020 0014 Executive electric Right flap and defroster vent-V199
00021 0015 Executive electric left flap and defroster vent-V200
00022 0016 Executive electric right hot air flap at the rear of the center console-V201
00023 0017 Executive electric left hot air flap at the rear of the center console-V202
00024 0018 Executive electric right cold air flap at the rear of the center console-V203
00025 0019 Executive electric left cold air flap at the rear of the center console-V204
00026 Executive 001A motor Right flap and defroster vent-V205
00027 Executive 001B motor left flap and defroster vent-V206
00028 001C Executive electric left bezel-V207
00029 001D Executive electric central bezel-V208
00030 Executive 001E motor right bezel-V209
00031 001F defrost key left rear glass-E299
00032 0020 defrost button the right rear window-E300
00033 0021 Control button front left deflector-E301
00034 0022 Control button front left center vent-E302
00035 0023 Control button front right center vent-E303
00036 0024 Control button right front baffle-E304
00037 0025 Key for adjustment of the temperature difference between the space for the legs and the upper part of the cabin-E305
00038 0026 Control button left rear deflector in the center console-E306
00039 0027 Control button right rear deflector in the center console-E307
00040 0028 lock button door opener inside-E318
00041 0029 Executive damper motor uniform air flow-V213
00042 Lamp 002A left hand fire-M43
00043 002B lamp right hand fire-M44
00044 002C Perform test 1 group of actuators
00045 002D Check Now 2 groups of actuators
00046 002E Electric retractable washer jets left headlight-V248
00047 002F motor sliding washer jets right headlight-V249
00048 0030 heat exchanger temperature sensor, left-G306
00049 0031 heat exchanger temperature sensor, right-G307
00050 0032 temperature sensor-G308 Evaporator

Full list of fault codes here
Car Manuals PDF

on Dec 20, 2016 | Cars & Trucks

1 Answer

2003 ford expedition i just got it a week ago and the front heat works great but the back vents only blow cold air. How do i fix this?


With the car parked and engine idling, turn the ventilation control between windshield defroster and "open air ducts" to front and rear vents. Listen to pinpoint where the valves are that open and closes the air ducts. It sounds like the air duct to rear vents are blocked, and the cold air in rear air duct is coming from "outside ventilation." The air vent to allow hot air to the rear vent is stuck in "open ventilation" mode, like when you're driving in spring or summer months.

Nov 29, 2013 | Cars & Trucks

1 Answer

I have air coming out of my defrost and heat, but not hot air, but have hot air going to the rear heat. 2003 GMC Savana


You have either a blend door problem,or the blend door actuator. Both are located underneath the dash.

Sep 23, 2012 | 1992 GMC Suburban

2 Answers

VW fault codes


Hi there:
Are you scanned the PCM and have fault codes noted? Need description fault codes? Send us the specific fault codes that you find there.

Jul 01, 2012 | Volkswagen Cars & Trucks

1 Answer

I have a 2001 Oldsmobile Silhouette and the front Air Vents do not blow out anything at all. There is no A/C heat or defrost. Would a low compressor cause this? The rear vents are blowing out air as...


The blower motor is either bad, or if you hear it blowing in the front but nothing comes out of the vents, then it's a vacuum motor problem. The flaps aren't angled right to allow air to come out of the vents (either for a/c, heat, or defrost).

Jul 07, 2010 | 2001 Oldsmobile Silhouette

1 Answer

Front dash vents


check the vacuum switch,,and the temp door actuator motor

Jul 06, 2009 | 1999 Chevrolet Astro

4 Answers

Heating / air conditioning control stuck to front defrost vents


There is a vacuum leak under the hood. Find the vacuum line on the passenger side where it comes through the firewall and follow it to the engine. You system needs vacuum to operate and without it the default setting is on defrost for safety reasons.

Jun 19, 2009 | 1999 Dodge Durango

1 Answer

Heat wont blow through heater or defroster vents


common problem, check under dash by the gas pedal if control arms are muving went selecting from ac to heat cuz this it is the control for the vents to go from ac to heat and to defrost.

Jan 18, 2009 | 1997 Chevrolet K1500

1 Answer

Front vents will not work


If they are stuck on defrost,then the problem is a little vaccum line that comes through the firewall as all the climate controls are vaccum controlled,so look for a small green or black plastic line unhooked.

Dec 25, 2008 | 2005 Chrysler Town & Country

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