Question about 1996 Mazda Pickup

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1996 mazda b3000 heater just blows cold. Cold air only blows from defrost. No air movement from other vents

Read other post from here and stated blend door actuator. Would this also be the problem with inability for air to only come defrost .

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Posted on Jan 02, 2017

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SOURCE: heat will not switch on

sound like a stuck blend door motor, not switching back and forth from hot to cold. the most likley cause is a bad heater control panel not commanding the motor to move as requested.

Posted on Mar 13, 2009

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SOURCE: 2000 Mazda Protege LX AC starts cold, blows "vapor", then warms

Sure take your buddy with you when you go so he can drive you away while they fix it but you do the talking with your buddy standing by ready to leave. Yes low on freon condensate drain stopped up fan belt loose or needes replaced. This is an old car and the mechanics will likly find many things wrong with it make sure they know that you what them to run it awile after it's fixed so that it in with some gas in the tank so they won't worry about running out. Should get alot of repairs done for less than $200

Posted on Aug 12, 2009

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  • 255 Answers

SOURCE: 2004 Mazda RX8 heater blowing cold air?

First thing to check: Does the temperature gauge in your car go up to normal quickly when starting out in the morning? If not, replace the thermostat in the engine. It is stuck open. . Then do this: Check to see if the cable actually moves a lever on a device that has hoses hooked up to it on your firewall in the engine compartment. Have an assistant help you by moving the control levers. If no control levers, the duct system is operated by vacuum and one of the doors that throttles the hot air into the passenger compartment has quit working. You'll have to check to see if that vacuum motor is operational. You'll need a manual to make the job easier. . Hopefully it is the first problem, as the second one is rather difficult to troubleshoot and get to (under the dash).

Posted on Nov 25, 2009

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SOURCE: When driving, heater blows warm air. When idling, cold air.

It sounds to me like you have a plugged heater core, or one that is beginning to plug. With the engine running, carefully feel the two hoses that lead from the engine into the heater core in the firewall. If one of those hoses is colder than the other one then you heater core needs to be replaced. This involves removing a bunch of stuff under the dash. Sometimes it's pretty easy and sometimes not. Start by removing the glove box and you should be able to see the plastic housing for the heater core.

Posted on Dec 15, 2009

  • 1 Answer

SOURCE: 2004 Mazda RX8 Heater problem

There is a well known problem that is a manufacturer's defect with the soldered connection on the circuit board behind the temperature knob. There is a fix to re-solder the connections but the dealer will gladly take $450 to replace it with the same bad board that will last you a while. Look for the link to show you how to fix it yourself.

Posted on Dec 19, 2009

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1 Answer

How do I confirm a blend door / actuator problem?


blend door concerns heat and cold air ducting flapper. whether electronic or manual truning of a knob there is a movement noise. a motor/s make/s a sound on electronic controlled ones or a turn knob harder at times to turn does this. then feel the changes hot/cold breeze and no breeze etc..on the vent according to what you turn the system on to do. it is best to confirm movement /motion of the internal motor or flapper during night time or early morning in the garage inside the car devoid of noise to hear the motor or flapping movement, must hear some motor effort or feel hand effort if cable to the heater valve is intact/ not snapped to open heater valves on the engine side. then inspect heater cable if heater is not working etc..hope this helps.

Nov 24, 2014 | 1999 Mercury Grand Marquis

1 Answer

96 Grand Am 2.4l A/C not equipped - Lots of cool air through vent. Almost no air to defrost. Blows hard to floor (great temp mix). Every vent setting? Mech just replaced heater core? What? Fine before


Looks like your mechanic messed up. If he has any integrity then he should take care of you. If not and you want to try and tackle it yourself then you have to ask yourself this: do I want to pull the dash out? Because that is what that will entail. Sounds like he may have messed up the ducting somehow. Unless the blend doors and directional doors are electric actuator operated in which case those actuators need to be replaced

Jan 17, 2014 | 1996 Pontiac Grand Am

1 Answer

Heater blowing cold air


the blend doors or the one way checvalve is not workin--their vacuum operated but the doors are motor driven also--its a job to get into the dash--need a repair book etc-mite wanna take to a good independent--since its electic related try disconnectn batt or unplugn computer fora min and see if it clears

Dec 24, 2013 | Mazda B3000 Cars & Trucks

1 Answer

1996 ford windstar blowes cold air thru defrost only warm in back


For some reason this question was listed a dozen times within an hour or so.
Usually the problem is a blend door under the dash. The blend doors direct air thru the heater core and the vents.

Jan 12, 2013 | 1998 Ford Windstar

1 Answer

My heater does not blow in floor in a dodgeram 1500


the heater vacuum motor and lines needs to be checked.Also get the blend door checked.

NO HEAT ON FLOOR VENTS

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As per your problem mentioned. There are few solved help links to troubleshoot these problems. Go through the list and Click the link below:----

2000 Toyota Avalon: No heat on Passenger Side?

http://whatisbyme.blogspot.in/2012/05/2000-toyota-avalon-no-heat-on-passenger.html


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No heat on Oldsmobile Silhouette?


http://technoanswers.blogspot.in/2012/02/no-heat-on-oldsmobile-silhouette.html

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Heater blows cold?

http://schematicsdiagram.blogspot.in/2012/02/heater-blows-cold.html

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Heat blows cold on drivers side and hot on passenger side?

http://schematicsdiagram.blogspot.com/2011/12/heat-blows-cold-on-drivers-side-and-hot.html

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Hot air on the driver's side vents only?

http://repairhelpcenter.blogspot.com/2012/01/hot-air-on-drivers-side-vents-only.html

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Temperature gauge does not move and no heat when heater is ON?

http://technoanswers.blogspot.com/2012/01/temperature-gauge-does-not-move-and-no.html

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1992 Toyota Camry: A/C Control light Flashing and A/C not Blowing Cold?

http://technoanswers.blogspot.in/2012/04/1992-toyota-camry-ac-control-light.html

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No heat, blower blows only cold?

http://technoanswers.blogspot.in/2012/02/no-heatblower-blows-only-cold.html

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Ford F150 Ac only blows through defrost vents?

http://technoanswers.blogspot.com/2012/01/forf-f150-ac-only-blows-through-defrost.html

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Dodge A/C come out of defrost vents only?

http://technoanswers.blogspot.com/2012/01/dodge-ac-come-out-of-defrost-vents-only.html

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Ac vacuum line on dodge cummins?

http://technoanswers.blogspot.com/2012/01/ac-vacuum-line-on-dodge-cummins.html

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Ford ranger AC blows cold through defrost vents instead on cabin vents?

http://technoanswers.blogspot.com/2012/01/ford-ranger-ac-blows-cold-through.html

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2005 Chrysler PT Cruiser: A/C Blows Warm?

http://whoisbyme.blogspot.in/2012/06/2005-chrysler-p8t-cruiser-ac-blows-warm.html

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2009 Mercury Grand Marquis: A/C blows Cold From Defrost Vent Only?

http://whoisbyme.blogspot.in/2012/06/2009-mercury-grand-marquis-ac-blows.html

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AC not blowing through Vents on 2007 Chevy Trailblazer?

http://schematicsdiagram.blogspot.in/2012/04/ac-not-blowing-through-vents-on-2007.html

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Passenger side temperature is warm air out of dash vents?

http://schematicsdiagram.blogspot.in/2012/04/passenger-side-temperature-is-warm-air.html

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These will help.

Thanks.

Nov 28, 2012 | Cars & Trucks

1 Answer

2007 chrysler town and country a/c blows cold through floor and defrost vent but not dash vents


Often a sign of a blend door problem. The blend door or doors are in the heater a/c box behind the dash.

Jun 28, 2012 | Chrysler Town & Country Cars & Trucks

2 Answers

A/C will only blow through defrost vents


Common question on this site. On late model cars, the vents are controlled by blend door motors. Small electric motors open and close doors to direct air flow.
Chances are you have a blend door that is stuck or a failed motor.
The default position is the defrost to make sure the windshield is always clear.
Someone will need to look behind the dash to see if all of the doors will move on demand.

Jun 27, 2012 | 2006 Acura TSX

1 Answer

My heat works but it is blowing any air


have your blend motor checked and you blend door

Nov 08, 2011 | 1996 Ford Crown Victoria

1 Answer

This car has the automatic temperature control system


The hot/cold switch is probably bad.you have a blend door box that opens to let the cold air in and closes to let the hot air in.From what you are saying this part is no responding to the switch movement.Make sure power is at the switch and power should go through the switch when put on cold air this moves the blend door.Some times the blend door goes bad and has to be replaced its under the dash on the right side.

Aug 10, 2009 | 1999 Mercury Grand Marquis

2 Answers

Heat constantly blowing


I know this problem all to well as i am a Ford dealer tech, the problem is caused by either a defectice air temp control blend door actuator motor or a stuck air temp control blend door or in rare cases both, your system's door is stuck n the heater position, which is where they almost always fail.

May 14, 2009 | 1998 Mazda B-Series

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