Question about Cars & Trucks
Had to fix leak in system and I want to know what the charge pressure on the low side should be to get the best performance from the machine. Can not find any refferance to pressures on the Cecilware web site so I'm puttin this question up for grabs and see which answer sounds the best.
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Posted on Jan 02, 2017
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.
Posted on Jan 05, 2009
THERE SHOULD BE A HIGH PRESSURE PORT LOCATED IN FRONT OF THE RADIATOR..WITH A RED CAP ON IT...THATS THE ONLY PLACE YOU CAN CHARGE THE A/C..THAT WHAT A DEALER MECH TOLD ME.......YOU MIGHT HAVE TO FIND A ADAPTER FOR THE FITTING......IF YOU FIND ONE LET ME KNOW......
Posted on Mar 15, 2009
Have the oil pressure tested with an accurate mechanical gauge. often the sending unit goes bad, but without testing it could cost you an engine before you find the problem.
If the mechanical gauge shows same low readings, you have internal engine wear (likely worn crank/rod bearings) Then, it's your decision on whether to drive it till it expires, repair it or buy a new vehicle.
Posted on Apr 02, 2009
low side should never read 110 means it was overcharged. normal readings are about 30-50 lbs on the low side. the pressure switch reads high and low if the pressure gets high it turns on the compressor low shuts it off however the high side also has a pressure switch if it gets too high it shuts off the compressor. **** down the system and pull it into a vacumn start the vehicle and put the ac on full blast. then charge it with freon on. no matter what the ac system will take some freon to turn on the compressor. but make sure that expansion valve is the right one that matches up to the old valve there are too many valves that dodge has made that part stores get them mixed up with another vehicle that has different features.
Posted on May 30, 2009
look for the large ac line/hose and follow it untill u come to the small service port this is wher u charge the small ac line/hose has the large port this is the high side
Posted on Jun 30, 2009
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