Quote Originally Posted by erick_214 View Post
[SIZE=4]Tanong lang mga gurus, I have a 1999 Toyota Hi-ace van subic. Ngayon pag nasa expressway ako at umabot na ng 120Kph yung takbo ko eh nawawala yung lamig ng AIRCON, parang kusang pinapatay yung compressor? Bakit kaya ganun? May prob ba compressor ng van ko?

Thanks[/SIZE]

if the a/c cuts out at this vehicle speed, it might be more linked to the engine speed. either the system is low on charge making the clutch cycle on and off or your compressor clutch has a speed sensor that cuts out at certain rpm. if the car engine speeds up, so does the a/c compressor and if there is insufficient charge or there is a restriction on the low side, the low pressure switch will cut clutch operation to prevent the evaporator from icing up.