kingpolaris
Member
Ok, I'm don't consider myself an a/c newb but this rig is kicking my ass.
2003 Expedition Eddie Bauer
A/C kicks on as soon as i start the vehicle but only stays on for about 5 seconds. Refrigerant pressures are low (i tried jumping out the low pressure switch) but shouldn't the compressor cycle back on after the pressure comes up - like ever other car i have ever worked on. I've checked high and low side pressure switches, interior and exterior air temp sensors, clutch relay and diode and all are good. The only way i can get the a/c to stay on is to jump out the compressor relay located behind the lh headlight. the only thing i can think of is it might have a bad WOT switch (wherever that is), a bad coolant temperature switch (again, wherever that is) or the dreaded bad pcm?
I'm running out of things to check so any advise would be awesome.
Thanks!
2003 Expedition Eddie Bauer
A/C kicks on as soon as i start the vehicle but only stays on for about 5 seconds. Refrigerant pressures are low (i tried jumping out the low pressure switch) but shouldn't the compressor cycle back on after the pressure comes up - like ever other car i have ever worked on. I've checked high and low side pressure switches, interior and exterior air temp sensors, clutch relay and diode and all are good. The only way i can get the a/c to stay on is to jump out the compressor relay located behind the lh headlight. the only thing i can think of is it might have a bad WOT switch (wherever that is), a bad coolant temperature switch (again, wherever that is) or the dreaded bad pcm?
I'm running out of things to check so any advise would be awesome.
Thanks!