Question about 1998 Ford Ranger SuperCab

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My mazda b2500 blow cold thruogh the front vent but at 55mph it only come out the top at the wind shield

The a/c works fin at low speed but when u get up to 55mph the a/c will stop come out the front vent and do only at the vent just below the windshield way is that

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Vacume hose is off

Posted on Jan 09, 2013

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6 Suggested Answers

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

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Posted on Jan 02, 2017

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  • 29 Answers

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

BCAS1298
  • 3092 Answers

SOURCE: my ac blows hot air from the front vents

Expansion valve or orfice tube clog.to front unit.

Posted on Jul 15, 2010

  • 142 Answers

SOURCE: a/c problem

You either have a bad control, or motor running the air direction door in the front HVAC unit, or a door that is stuck.

The front and rear units are totally separate.

The door directs where the air, cold or hot, should come out, whether it is panel vents, floor, defrost, or any combination of those.

This door and motor are located inside the heater box which usually requires a lot of the vehicle dash assembly to be taken apart to get to these parts.

Posted on Aug 28, 2008

alicantecoli
  • 22246 Answers

SOURCE: Ford Expedition 2002 Front Heater blows cold air below 45 MPH

impeller is made of plastic on teh water pump and its slipping and spinning on the shaft renew before weather warms up as engine will overheat

Posted on Jan 01, 2009

philriden
  • 146 Answers

SOURCE: 1998 Mustang - AC blows only through Defrost vents

You probably have a vacuum leak on the passenger side. its a small plastic hose some times they come unpluged from the engine. or brake.

Posted on Jan 05, 2009

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1 Answer

Front AC cold but Rear AC very hot


Not likely, but Is Hot water flowing to heater coil in back? How hot is "very hot" Is it a refrigerant line? If a refrigirant line, Very Hot means it is hot gas from the compressor that "should be going to the condenser coil usually in front of the radiator. It's almost impossible for that Hot refrigerant gas to go to the cooling coil in the back unless you had some repairs done and they weren't certified. My guess is the radiator hot water is not being controlled properly, due to bad valve or control system components.

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87 chevy caprice A/C vent not opening


Depends on what is clicking. The engine vac opens blend doors under the dash. It could be one of the vac pots or a blend door is sticking. Normally the hissing noise means you have a leak, but a leak usually does not fix itself.

May 18, 2013 | Chevrolet Cars & Trucks

1 Answer

2003 yukon xl front a/c not blowing cold air.back working just fine. added r 134 last week ,with low side pressure of 70 psi,high side at 275 psi.what could be the problem


{: ) Try to feel the the a/c accumulator for coldness. It is that metallic can mounted near the firewall, connected along the a/c suction pipe. Actually, 70 psi is still somewhat high. But anyway, if the accumulator is cold to touch, most probably the problem is on the front air distribution. Assuming that your front blower is working, the cold air could have been distributed elsewhere, to the other vents instead of the front vents.
It can be an actuator or an air vent door fault. There are also GM bulletins for this kind of concern like connector, wiring, or calibration issues. Depending on the retrieved codes by a scan tool, it can help narrow down the search and the cause, and eventually speed up the repairs. So goodluck.

Jun 11, 2011 | 2003 GMC Yukon XL

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When I turn on the heat in my 2004 mazda mpv the front air vents blow heat but the rear air vents are blowing cold. I have adjusted every setting is there something I am overlooking.


When I turn on the heat in my 2004 mazda mpvicon1.png the front air vents blow heat but the rear air vents are blowing cold. I have adjusted every setting is there something I am overlooking.

Jan 14, 2011 | 2004 Mazda MPV

1 Answer

No heat or cold air will come out of my2004 Mitsubishi Galant. I took off the dash panel behind the glove box to get to the Blend Door Motor, but after turning the air from hot to cold at various speeds,...


Does the air blows through the dash board vents. Does the selector is functional, that means you can force the air stream through wind shield, or vents or down to the legs. If these things are OKthen check CONTROL PANEL.
Remove the trim plate surrounding the center instrument panel. Detach the electrical connectors and remove the control panel.

Read more: How to Troubleshoot the Air Conditioning in a Mitsubishi Galant | eHow.com http://www.ehow.com/how_4520422_troubleshoot-air-conditioning-mitsubishi-galant.html#ixzz0yf04FfuE

Sep 05, 2010 | 2004 Mitsubishi Galant

1 Answer

The cold/hot gauge is wavering to hot and has a good radiator-with no leaks. But when accellerating goes back to normal. It has to cool down after city driving. light & traffic. The thermostat is good...


fans working sound like a fan problem when in town ur not getting wind thruogh the radiator,on freeway u get speeds and wind going whichv will keep a good temp depending where u live,check ur fans fuses,ans make sure they turn on

Aug 25, 2009 | 1997 BMW 328

3 Answers

99' Escalade a/c front vent blows cool air an rear blow cold air.


i have the same problem, my rear a/c blows great very cold, the front a/c blows but it is not cold at all. I had the the a/c seviced and it was vacumed and correct ammount put back in, no problems, the front still blows but it is not cold, i have checked everything and the a/c guy said it might be the door not opening. any help? still not working

Jul 13, 2009 | 1999 Cadillac Escalade

1 Answer

Top rear vents blow out cold air[ 2005 cadillac srx ]


Hello according the the manual, the back vent are to blew cold air only..the fronts vents are suppose to the entire car...

Feb 01, 2009 | 2005 Cadillac SRX

1 Answer

1998 mazda b2500 continually blows heat even when switch is on cold and ac is on.


air valve on heater hose missing or cracked, small 2mm vac hooks up to the control valve on bottom L shaped connector. rubber boot.

Dec 21, 2008 | Mazda B3000 Cars & Trucks

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