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1992 honda The pressure switch is a dual pressure switch. I have not seen any kind of adjustment screw but i ll look. I knew the vehicle was r12 originally but the 134a fittings on the lines is what got me and no conversation sticker. from my understanding the parts i converted over on the car are r12 and 134a combatable. I dont know. If thats true then i thought about emptying the system, blowing it all out, pull a vacuum on itand refill it with r12 and see if it returns closer to normal. But i don't know for sure if i should. I figured the door ajar lights weren't tied into this problem, but with foreign engineering, you never know. I will try crimping the high end hose also. I'm going to try everything i possibly can before i replace the compressor or take it to someone. and i have no idea why the dell computer **** is on all these messages.

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  • yadayada
    yadayada May 11, 2010

    Yes many systems allow the AC cycling switch to be adjusted, there is a screw under the connector, but not all have this feature, also you need to know if the system charge is correct, what are the high and low side reading with the engine held at 1500 RPM and the system stable for at least 5 minutes?, R134 is denser than R12, the charger amount is less than the amount the manufacturer lists for R12, about .9 lbs of R134 to 1 LB of R12 is the ratio I think but look it up to be sure.



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You posted this under the laptop category. Try reposting under automotive, you'll reach more experts in the automotive Field, and you'll get a better response. I have some knowledge to air conditioning systems. I don't have enough technical knowledge to tell you why, but the way I understand it is that if the system has been converted to 134 the 12 will not work due to the refrigerant composition, but you can try. If you're just not getting the cold air you want, you might look into the accumulator. If it's not working correctly or partially plugged this could be your problem. If my suggestions don't flip the bill, then try posting in the automotive section.

Posted on Aug 01, 2008


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