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  #1  
Old 07-26-2010, 02:03 PM
Dcrymes99ranger Dcrymes99ranger is offline
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Default Air condition blows cold then hot air.

Ok guys I'm having AC problems. When I start the truck it blows cold air out. When I drive it a few miles up the road, it blows hot air. I have Freon in the system, Brent (sandman) did a compression test and it's compressing and has freon. Maybe I have too much freon or the orifice tube is clogged up. Any suggestions on what it could be and if it is the orifice tube where is it located and how hard is it to install yourself? Thanks for the info.
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  #2  
Old 07-29-2010, 10:16 AM
Dcrymes99ranger Dcrymes99ranger is offline
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Default Re: Air condition blows cold then hot air.

Wow noone has any idea on what could be wrong.
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Old 07-29-2010, 10:26 AM
edgeman4.0 edgeman4.0 is offline
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Default Re: Air condition blows cold then hot air.

i would check your condenser for any obstruction in the lines of around the unit.. aside from that.. let the pro's deal with any a/c work. you'll be better off in the long run.
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Old 07-29-2010, 11:11 AM
Redneckstone Redneckstone is offline
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Default Re: Air condition blows cold then hot air.

is it constant hot air or just blurbs of it? your not flooring the truck when you get the hot air are you? because there is a full throttle kill on the pump
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Old 07-29-2010, 12:01 PM
remark123 remark123 is offline
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Default Re: Air condition blows cold then hot air.

You may well indeed have a plugged orifice tube. My truck did the same thing, and before I did anything about it, it stopped blowing hot air. I lucked out. Your orifice tube is located right below the dryer, that is the good news. The bad news is that you will have to discharge and recover the freon in the system, replace the orifice tube, then pull a vacumn (to remove any moisture), then recharge the system. Probably not a task you have the equipment for yourself. A lot of A/'C shops will do it for about $120 or so though.
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Old 07-05-2011, 11:12 PM
crazy crazy is offline
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Default Re: Air condition blows cold then hot air.

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Originally Posted by Dcrymes99ranger View Post
Wow noone has any idea on what could be wrong.
what are your pressures? before and after its cold air
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Old 08-12-2011, 05:35 PM
Dcrymes99ranger Dcrymes99ranger is offline
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Default Re: Air condition blows cold then hot air.

Yes Zack has a point. Cause, when I kick the gas in it stops blowing cold air. I have to cut the ac off and wait 20 mins before I can cut it back on.
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  #8  
Old 08-12-2011, 05:52 PM
ranger0130 ranger0130 is offline
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Default Re: Air condition blows cold then hot air.

When we charge Ac systems at work we usually put about 37-42 psi.
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