Question about 2000 Dodge Neon

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The copresser cycles no and off and the gauge on the freon bottle was going high to low like there might freon in it

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  • lane28888 Jun 26, 2009

    when the gauge goes from high to low does it mean there is freon in system or should i put more in it


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Just because the guages are moving doesnt mean it is really taking the freon. Does the can get cold when the guage drops. Is it getting lighter?

Posted on Jun 26, 2009

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Did you use the proper gauges to measure the high side and low side pressures as you added the 134 (I assume not Freon)? If not, it's possible you put too much 134 on the high side and either you kicked a breaker for the pressure or you just burned up the compressor.

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You've got some of the picture, but not all of it.
You need to know what the high and low side readings are, so yes you do need the gauge set. If the system is charged, and the low side is not dropping below 25psi, I would guess the low side pressure switch is faulty. But if the low side is dropping below 20psi when the compressor stops, the system may be low on freon. Which means you have a leak somewhere.
The hissing noise is freon flowing thru the system which could also indicate a low charge.

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