Question about 1988 Ford Ranger

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AC AIR BLOWS BACK AND FORTH FROM DEFROST TO FRONT VENTS

97 FORD RANGER, WHILE ACCELERATING THE AIR AIR COMES OUT THE DEFROST VENTS. WITH NO ACCELERATION AIR COMES OUT THE FRONT VENTS. I HAVE CHECKED ALL THE VACUUM LINES FOR LEAKS. COULD IT BE THE EGR. VACUUM SOLENOID?

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  • Ford Master
  • 4,369 Answers

You have a vacuum leak. Check the vacuum reservoir for a leak.

You can spray short bursts of starting fluid on the vacuum lines to find a leak. When engine revs, that's the leak. Be careful.

Vacuum Reservoir Tank and Bracket Removal

  1. NOTE: The A/C vacuum reservoir tank and bracket (19A566) is located either on or beneath the RH front fender splash shield (16102) .
    If the A/C vacuum reservoir tank and bracket is visible from above in the engine compartment, perform Steps 2 through 4. If the A/C vacuum reservoir tank and bracket is not visible in the engine compartment, perform Steps 5 through 8.
  1. Remove the screws and the A/C vacuum reservoir tank and bracket. AC AIR BLOWS BACK AND FORTH FROM DEFROST TO FRONT  - 1b32ebf.gif

Posted on Jun 14, 2009

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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

---------

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


------------

No heat on Oldsmobile Silhouette?


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

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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

No heat from vents


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

------------

No heat on Oldsmobile Silhouette?


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

------------

Heater blows cold?

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

-----------

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

----------

Hot air on the driver's side vents only?

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

--------------

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

-----------

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

--------------


No heat, blower blows only cold?

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

Ford F150 Ac only blows through defrost vents?

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

----------

Dodge A/C come out of defrost vents only?

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

---------

Ac vacuum line on dodge cummins?

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

---------

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

----------

2005 Chrysler PT Cruiser: A/C Blows Warm?

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


-------------

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

-----------

AC not blowing through Vents on 2007 Chevy Trailblazer?

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

----------

Passenger side temperature is warm air out of dash vents?

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

----------


These will help.

Thanks.

Nov 28, 2012 | 2006 Ford Taurus

1 Answer

Air flow issue- intermittently blows from wrong vents


This is a common problem on this site.
In your case I would look for a vac leak or a sticky blend door.
Since the direction of air flow changes when you are accelerating, I'm going to guess the blend door or doors are controlled by engine vacuum. There may be a vac leak between the dash and the engine, or the blend door may not be able to move back and forth correctly.
Defrost is the default position when a problem occurs, to make sure the windshield is clear of fog or frost.

Jul 19, 2012 | 2005 Mazda Tribute

1 Answer

Air blowing out floor and defrost vents but not not front vents


Sounds like a blend door problem. The vacuum from the engine opens and closes the door that directs air flow thru the vents.
I would guess the door is stuck in the middle of the range or something is blocking it.
The blend door(s) is behind the glove box.

Jul 19, 2012 | 2003 Ford Crown Victoria

1 Answer

The ac on my 1998 ford ranger only blows out the defrost vent and floor vent. How do I fix it?


Almost sounds like the actuators are inop. depending on which style you have, some are electrical motors and some are vacuum. These control the mode doors which move to deflect air to various vents.

Jul 03, 2012 | Ford Cars & Trucks

2 Answers

I HAVE A 2005 FORD EXPEDITON AND THE AIR WILL NOT BLOW OUT OF THE FRONT VENTS/IT BLOWS OUT OF THE BACK VENTS AND THE DEFROST. ALSO I HAVE THIS THUMPING NOISE COMING FROM THE REAR BACK PANEL INSIDE THE CAR...


I had the AC problem too, and they said there was a hole in the hose. They fixed it and now it comes out of the vents as it suppose too, but when I first accelerate to go up a hill, it stops blowing out of the dash vents. Once I have stopped going up the hill, the air starts blowing out again. Weird.

Jun 03, 2010 | 2004 Ford Expedition

1 Answer

Air conditioning and heating problem


The blend door actuator is vacuum driven. It sounds like you have a vacuum leak. Trace the vacuum lines starting at the firewall in front of the passenger side. With the heater or AC on HIGH and directed at the front vents, listen for a leak or trace the vacuum line back ward to try to find a leak. All the best.
Greg

Jun 22, 2009 | 1999 Ford Ranger SuperCab

1 Answer

My 97' Ford Ranger does not blow cold air.Help??


Have you checked to make sure your compressor is kicking in when turned to AC mode?

Mar 10, 2009 | 1997 Ford Ranger SuperCab

2 Answers

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I know from experience that if the coolant is to low ( not just the freon levels in the compresor but the antifreeze/coolant level as well) the AC system will not cool and will blow hot. Check the coolant Antifreeze and freon levels, even with the Coolant being a little low my 1998 Ford E150 Van will blow hot. After you have ruled out of these possibilities and the chance it is the thermostat most likely the problem is what Ford calls the "Flap" it controls the air flow through the vent system when you switch from Heat to AC. When the Flap is working it closes off one systems air flow so as to not interfere with the current climate selection.

Feb 21, 2009 | 1997 Ford Econoline

2 Answers

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check the vacuum on the control unit, or you can also check the cable that controls the direction doors. hope this helps

Jan 11, 2009 | 1998 Ford Ranger SuperCab

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