Question about 2002 Dodge Grand Caravan

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AIR conditioner not working again. replaced fan and added freeon(?) after about 1 week no more cold air... what is the problem?

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Freon is the common name for the refrigerant R12 and is no longer used. New refrigerant is R134a. Each are as dangerous when it comes to fire, but freon was more dangerous to breathe, as it asphyxiated you while making you so stupid you didn't notice.

More than likely you have a leak in the system if you have no cold air. A state licensed HVAC shop and most mechanic shops will have an A/C evacuation system, which is needed to properly test your system. Simply using a can of refrigerant can easily blow your seals and require you to repair again. It's always best to take it to a shop.

Evac systems will vacuum the coolant out of the system and fill it again to specified pressure. Occasionally the techs will check the pressure & after 3 hours if no change in pressure, you're good to go. Evac system will record how much refrigerant is pulled from your system and you are only charged for what extra is needed to bring to specified pressure... + shop costs/labor.

Stay away from DIY refrigerant in a can and never* depress the stutor valve to check and see if there is refrigerant/ What you do it put moist air into the system (outside pressure is denser/higher than internal pressure of A/C system) when you or your "so-called" mechanic does this, which destroys all* the components in a short period of time.

Get the system repaired ASAP. As little as one humid day out of 2 weeks time is enough to destroy all the components. A closed, sealed system has no* condensation/moisture in it at all

Posted on Oct 07, 2009

  • AKA3Toes Oct 09, 2009

    Sorry, schrader valve, not stutor/studor.

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