paulkeith
07-08-2005, 02:21 PM
my a/c works perfectly at idle and anything under 1500 rpm. ice cold.
as soon as the rpm go up , like during acceleration or interstate driving, the cold air stops.
now from what i tried to figure out, this means i'm building up too much pressure, and its tripping the high pressure switch, right? i can feel the compressor start to engage and instantly shut off. but again, this is only at high rpm. not the 1000 that you're supposed to test the system at. low rpm it does not cycle excessively.
has anyone ever seen this? is there a clog? its at a shop and even they can't figure it out. only gave it to them because i figured they'd have it done fast, and i dont have the equipment to vacuum before charging, etc etc
did some searching on JU and only found posts about excessive cycling at the 1000rpm test point. doesn't relaly help me, plus the charge is good. nagca was down.
thanks
Paul
as soon as the rpm go up , like during acceleration or interstate driving, the cold air stops.
now from what i tried to figure out, this means i'm building up too much pressure, and its tripping the high pressure switch, right? i can feel the compressor start to engage and instantly shut off. but again, this is only at high rpm. not the 1000 that you're supposed to test the system at. low rpm it does not cycle excessively.
has anyone ever seen this? is there a clog? its at a shop and even they can't figure it out. only gave it to them because i figured they'd have it done fast, and i dont have the equipment to vacuum before charging, etc etc
did some searching on JU and only found posts about excessive cycling at the 1000rpm test point. doesn't relaly help me, plus the charge is good. nagca was down.
thanks
Paul