The unit was cycling rapidly on and off so I evacuated the system, pulled a vacuum (no leaks), and weighed in the correct charge 1lb14oz. When the vehicle is idling in park or neutral, the system works perfecting with no cycling. Pressures look great. As soon as I place it in drive, the a/c starts cycling on and off and the idle "hunts" between 600 and 1000 rpm. As soon as I place it in neutral, the unit operates normally. I do not have any OBD II codes shown. The unit seems to cut out at about 30 psi and high side around 225 psi well within normal operating ranges. I bypassed both the HP and LP pressure switches and it continues to operate as described above. I would appreciate any information you can provide. Thank you.
have the same problem?
Tuesday, August 19th, 2014 AT 9:40 AM