I have over 90lbs of pressure when i hook up the gauge to add 134a freon what would cause this
SOURCE: location of low pressure port A/c to added 134a
Down low between the radiator and the engine. Look for the cap. Very hard to reach without burning your hand if the engine is hot. I had to rig a much longer hose to add 134a so the can would be upright while putting it in.
SOURCE: a/c warm low and high side pressures wrong
it could be one of 2 things.
you didn't vaccum it all the way or there is b clog in the system. next time u flush it run about 1/8 cup of rubbing alcohol through it . then push clean air through it. then refill it. if that doesnt work replace the seals on the compressorlow and high side lines/manifold.
SOURCE: Looking for low pressure port for servicing Freon
The ports on my 2005 silverado are on the same line,which is very confusing but, in between the two ports is the metering device (orifice) which changes the high pressure gas into a low pressure gas.The two ports are of a different size,with the low pressure being the smaller of the two. You can put your hand on the line, on each side of the metering device connection and the high side will be hot and the low side will be cold
SOURCE: what is the 134-a-Freon Compacity for a 1998 chevy
The R134-a refrigerant should be 1.80lbs. and the presures are dictated by the system it's self which they should be around the same pressure.If the low side is much greater than the high side and fluctuats greatly as it is running you should replace the orafice tube which is located in one of the metal lines near a connection.You can locate the orafice tube buy looking for three little dimple crimps about 3 inches from one of the connections in the metal line.
SOURCE: I have high pressures on the low side of my a/c
The gauges are equalizing ,the compressor has gone out.If this was helpful,please rate,thank you
Testimonial: "Thats what I thought just wanted another opinion thanks a lot "
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