Question about 1998 Ford Explorer

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A/C ford explorer 1993

I have ford explorer 1993 i fix A/C check the leakage from pipe change the throttle by new one , change O-ring and vacume the system from air and charge it with 134a freon gas the A/C is working now but before 10 minutes i start the engine and run a/c i heard gas sound coming from set welf ( safety valve) & emmidatly i stoped a/c i don't know what is the reason please advice the weather here in iraq is very hot
is the reason is the hot of weather or still there is jam in the system but where ? if i replace the throttle
please advice me asap

Posted by on

  • mases Jul 13, 2009

    thanks for advice but i don't replace a/c compressor with new one it's the original one i still use it , i will try to change the cylinder of filter i thinks it's old and need to replace with new one

  • mases Jul 15, 2009

    thanks for advice can i know what is the quantity of charge with Freon 134a cause i ready on compressor it's 1780 g of freon





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Whe you retrofitted the system to r134a ,did you subtract the amount from r12 to r134a. The system will hold less r134a than r12. It is roughly four oz less than r12.

Posted on Jul 13, 2009

  • Bill
    Bill Jul 15, 2009

    1993 came with r12 that is why I asked if you subtracted the difference.You have a fixed orifice tube in the system .



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