Lowrange2
NAXJA Forum User
- Location
- Abbeville, SC
Alrighty... got a 93 with a 4.0 and no A/C.
So it's warming up and I'm going to want A/C.
I'm going tomorrow to get freon to make sure it's all charged up.
I was more interested in getting the AC compressor to kick on by itself first. It may not need to be charged.
With the engine running and the A/C on 'MAX A/C' and the blower on high the compressor clutch never kicks in.
I jumped the wire over to the batter and it comes on and works fine. I let it run for about 5 minutes and the air never got cold. I assumed that means it needs freon...
Next I found the low pressure switch and unplugged it. When I unplugged it the engine idle fluctuated a little. I assumed this meant that the low pressure switch is engaged (Tells me that the system should be charged enough to work...right?) I jumped across the two contacts on the plug. Compressor still didn't kick on...
I replaced the circuit breaker under the dash. I also replaced the A/C relay under the hood.
With the low pressure switch jumped, ac switch on MAX AC, good fuse and good relay the AC Compressor clutch SHOULD kick in, right? Regardless, of how much freon is in the system...
By looking at the Haynes manual I see that I still have to check out the electronic thermostat and electronic control unit...
Ideas?
Thanks, Andy.
So it's warming up and I'm going to want A/C.
I'm going tomorrow to get freon to make sure it's all charged up.
I was more interested in getting the AC compressor to kick on by itself first. It may not need to be charged.
With the engine running and the A/C on 'MAX A/C' and the blower on high the compressor clutch never kicks in.
I jumped the wire over to the batter and it comes on and works fine. I let it run for about 5 minutes and the air never got cold. I assumed that means it needs freon...
Next I found the low pressure switch and unplugged it. When I unplugged it the engine idle fluctuated a little. I assumed this meant that the low pressure switch is engaged (Tells me that the system should be charged enough to work...right?) I jumped across the two contacts on the plug. Compressor still didn't kick on...
I replaced the circuit breaker under the dash. I also replaced the A/C relay under the hood.
With the low pressure switch jumped, ac switch on MAX AC, good fuse and good relay the AC Compressor clutch SHOULD kick in, right? Regardless, of how much freon is in the system...
By looking at the Haynes manual I see that I still have to check out the electronic thermostat and electronic control unit...
Ideas?
Thanks, Andy.