Comments on: 300ZX Air-Conditioning Problems http://www.certifiedmastertech.com/wordpress/2010/07/20/300zx-air-conditioning-problems/ Auto Repair Information and Facts From MasterTechMark Wed, 08 Feb 2012 02:37:54 +0000 hourly 1 http://wordpress.org/?v=3.3.1 By: Mark http://www.certifiedmastertech.com/wordpress/2010/07/20/300zx-air-conditioning-problems/comment-page-1/#comment-59099 Mark Wed, 11 May 2011 16:19:43 +0000 http://www.certifiedmastertech.com/wordpress/?p=710#comment-59099 Clarence: The old 300zx has 2 plastic doors that are weatherstripped (to make a good seal) that control the temperature and flow of air. The blend door controls which vents the air exits from ie dash, floor or windshield. The tempeture door controls if the air goes through the heater core or the evaporator on ac mode. Most often I see problems with the vacuum signal that operates the system. But as these cars get older I have also seen problems with the doors themselves binding and not sealing. Clarence: The old 300zx has 2 plastic doors that are weatherstripped (to make a good seal) that control the temperature and flow of air. The blend door controls which vents the air exits from ie dash, floor or windshield. The tempeture door controls if the air goes through the heater core or the evaporator on ac mode. Most often I see problems with the vacuum signal that operates the system. But as these cars get older I have also seen problems with the doors themselves binding and not sealing.

]]> By: Clarence http://www.certifiedmastertech.com/wordpress/2010/07/20/300zx-air-conditioning-problems/comment-page-1/#comment-59097 Clarence Wed, 11 May 2011 16:00:54 +0000 http://www.certifiedmastertech.com/wordpress/?p=710#comment-59097 Hello, I have an 88 300zx non-turbo, and I'm having problems with my ac as well. Whenever I turn on the ac, I'm only getting air out of my vents right under the dash used to defrost my windshield. Front vents and floor vents are barely pushing anything out, and everything is only pushing out heat. When driving down the interstate, hot air still flows through the vents. Just curious to see if you have any diagnosis or answers to why I'm only getting hot air. Hello,

I have an 88 300zx non-turbo, and I’m having problems with my ac as well. Whenever I turn on the ac, I’m only getting air out of my vents right under the dash used to defrost my windshield. Front vents and floor vents are barely pushing anything out, and everything is only pushing out heat. When driving down the interstate, hot air still flows through the vents. Just curious to see if you have any diagnosis or answers to why I’m only getting hot air.

]]> By: Mark http://www.certifiedmastertech.com/wordpress/2010/07/20/300zx-air-conditioning-problems/comment-page-1/#comment-58239 Mark Thu, 28 Apr 2011 15:45:44 +0000 http://www.certifiedmastertech.com/wordpress/?p=710#comment-58239 Sorry Carl: Not sure if the 86 300zx had a vacuum climate control system or electronic. It does sound like a blend door problem and if it is vacuum operated it is most likely a leaking or deteriorated hose. The blend door is spring loaded to default in the defroster position. Sorry Carl: Not sure if the 86 300zx had a vacuum climate control system or electronic. It does sound like a blend door problem and if it is vacuum operated it is most likely a leaking or deteriorated hose. The blend door is spring loaded to default in the defroster position.

]]> By: Carl 86 300zx http://www.certifiedmastertech.com/wordpress/2010/07/20/300zx-air-conditioning-problems/comment-page-1/#comment-58075 Carl 86 300zx Tue, 26 Apr 2011 20:52:50 +0000 http://www.certifiedmastertech.com/wordpress/?p=710#comment-58075 Mark, My 86 300 has a problem with the A/C air coming out the Defrost duct, then when I select Econ it blows a little out the regular or A/C vents. Have seen this problem ? Burning up in Texas Carl Mark,
My 86 300 has a problem with the A/C air coming out the Defrost duct, then when I select Econ it blows a little out the regular or A/C vents. Have seen this problem ?

Burning up in Texas
Carl

]]> By: Mark http://www.certifiedmastertech.com/wordpress/2010/07/20/300zx-air-conditioning-problems/comment-page-1/#comment-36232 Mark Fri, 10 Sep 2010 18:02:17 +0000 http://www.certifiedmastertech.com/wordpress/?p=710#comment-36232 Joy: If the system has not been converted to r134 it could cost a couple of hundred dollars to properly convert and charge the system. If it has already been converted then a charge and basic diagnosis should be under 100 bucks. The thing is that with the age of the vehicle and the AC not operating more things can be wrong and discovered when they go to charge it. I wrote an article about AC conversion you can see it here: http://www.youfixcars.com/retrofitting-air-conditioning.html Joy: If the system has not been converted to r134 it could cost a couple of hundred dollars to properly convert and charge the system. If it has already been converted then a charge and basic diagnosis should be under 100 bucks. The thing is that with the age of the vehicle and the AC not operating more things can be wrong and discovered when they go to charge it. I wrote an article about AC conversion you can see it here: http://www.youfixcars.com/retrofitting-air-conditioning.html

]]> By: joy http://www.certifiedmastertech.com/wordpress/2010/07/20/300zx-air-conditioning-problems/comment-page-1/#comment-36168 joy Fri, 10 Sep 2010 03:47:44 +0000 http://www.certifiedmastertech.com/wordpress/?p=710#comment-36168 Hi mark I'm about to purchase a 300zx 1989 model. The air-con needs to be re-gassed, approx what would the damage be to do this $ wise? Kind regards Joy Allen Hi mark

I’m about to purchase a 300zx 1989 model. The air-con needs to be re-gassed, approx what would the damage be to do this $ wise?

Kind regards
Joy Allen

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