Question about 1999 Ford F250 Regular Cab

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1999 powerstroke air cond,blows cold at startup but after about 10 minutes it blows hot then it will blow cold again.

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After the A/C turns hot , check to see if compressor is still cycling. If not the system may need recharging.

Posted on Jun 23, 2009

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Posted on Jan 02, 2017

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The heater in my 1999 Land Rover Discovery Series 1 won't blow cold.


As per your problem mentioned.There are few solved help links to troubleshoot these problems.Go through the list and Click the link below:----
Air conditioner blows air but not cold air http://repairhelpcenter.blogspot.in/2012/07/air-conditioner-blows-air-but-not-cold.html

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Car overheats and Air blows hot at idle? http://howtobyme.blogspot.com/2011/11/car-overheats-and-air-blows-hot-at-idle.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---------- 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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2005 Chrysler PT Cruiser: A/C Blows Warm? http://whoisbyme.blogspot.in/2012/06/2005-chrysler-pt-cruiser-ac-blows-warm.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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These will help.
Thanks.

Nov 22, 2012 | Cars & Trucks

1 Answer

AC will blow cold air for a few minutes then start blowing hot air, cut the engine and start it again and blow cold air for a few minutes then start blowing hot air again. Just filled up the freon and the...


you have moisture in the system this causes your expancion valve to freeze up an stop working, thats why it works for sort time and when it de-freezes stars working again. you need to do a EVAC & RECHARGE with a good AC service equipment, specially attention to pull vacumm por at least 20minutes so you get all moisture out of the system.
Good luck

Jun 05, 2011 | 2002 Hyundai Santa Fe

1 Answer

AIR COND. WORKS FINE. AFTER DRIVING A WHILE IT STARTS TO BLOW HOT AIR


Sounds like its freezing up. When this happens turn it off for 5 minutes and then turn it back on. If it is blowing cold air again it is freezing up somehow. It would depend on the system as to whats causing this. Hope this helps.

Sep 04, 2010 | 2005 Mitsubishi Lancer

1 Answer

Rear air conditioning blowing hot air


I suggest that you take the Vehicle to a Reputable A/c Repairer, NOT a Muppet Shop, as I call them occassionally.
Request a CHECK and ADVISE ONLY. on the system. This will determine the exact fault[s] in the system.
From you comments, I would expect to find a Reducing Freon flow, through a probable Expansion valve failing.
Then you can decide, if on nearing the end of the HOT period, having the Diagnostic done, is the expense justified now, or can it wait until later.
Regards, DT

Sep 06, 2009 | 2005 Mercedes-Benz Mercedes Benz E320 Cdi

1 Answer

1998 Volvo V70 A/C Intermittent


I had exactly the same problem. When your engine is cold and off check the gap on your ac compressor with a feeler gauge, it should be between 0.3 and 0.5mm. If it is larger you need to re-shim which invloves undoing a nut on the end off the compressor and removing the clutch plate, then removing the appropriate shims (look like washers) then replace. The reason it blows warm after 10 minutes or so is because the ac compressor gets hot and the clutch gap gets too large for the electro-magnetic clutch to engage. Some people would say that you need a new compressor but all you need to do is a re-shim.

Mar 01, 2009 | 1999 Volvo V70

1 Answer

A/c blows cold then goes to hot air


sounds like a vaccum diaphram may be leaking try listening for hissing noises under dash near the glove box,set blower to lowest setting\off if you can and still have a\c on.

Oct 07, 2008 | 1995 Volvo 850

1 Answer

1999 gmc 1500 sierra truck v8


The clutch in compressor is controlled by a pressure switch. Start there.

Jun 25, 2008 | 1999 GMC Suburban

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