Question about 1996 Pontiac Grand Am

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2002 grand prix heater blows hot, compressor runs great, fan motor runs great, both heater tubes are hot, smaller ac tube is really cold and larger ac tube is pretty warm.

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  • taquecop Jun 19, 2009

    compressor is running strong after I charged it, it is charged, the only problem is getting the cold air to my face. did that change your answer at all

  • taquecop Jun 19, 2009

    what do i need to do to check duct problem, looks fine to me and temp actuator is working

  • taquecop Jun 19, 2009

    also where is orafice tube and how to fix and how much pressure is optimum for the system

  • taquecop Jun 21, 2009

    but, by un screwing this nut, will all freon escape.

  • Mike Butler
    Mike Butler May 11, 2010

    And the problem is? Sorry, I'm only getting part of the heading I guess.



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You have a plugged dryer and capilary tube you need to replace bothto be able to recharge.

Posted on Jun 19, 2009

  • Bruce Hathcock Jun 19, 2009

    Well you could have a ducting problem did you check to see if the duct work come undone under the dash? It's hard to guess without being there doing my own diangostics so that would of been my first gurss then my second.

  • Bruce Hathcock Jun 20, 2009

    the best performance for the AC is the high side should run now higher then 300 PSI and the low side 30 the orifice tube in in line at the bottom near the condenser, if it is plugged it will cause the problem you are speaking of, so will the receiver dryer, they should of both been replaced before charging the orifice tube is only 3 inches long and looks like a pencil with o rings on each end and has a screen in it and has to be replace about every 5 to 6 years due to contaminates in the system, once it plugs no more cool air, it only cost 3 dollars and you will see where there is a nut threaded on the tube it's the only place you could stuff something in the tube.



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