Does anyone know the total capacity of R134a for a 2003 Wrangler with 4.0?I know it is posted on a decal on top of the radiator,but mine is messed up and halfway torn off.I have been trying to charge mine,am up to 2 cans of refrigerant,and the compressor is still cycling on and off.I know this is a sign of low refrigerant,but I don't want to overcharge it.Before I put a third can in,I would like to know how much factory specs state.Thanks!
TJ Air Conditioning Question
- Thread starter goldtj
- Start date
SteelHeadz
Super Moderator
I'm not sure on the exact capacity but i think it's somewhere between 1.0lb to 1.14lb and no more than that. The high and low spec's are as follows.
A/C SYSTEM SPECIFICATION CHART
Item</B> Description</B> Notes</B> Compressor Nippondenso 10PA17 ND-8 PAG Oil Freeze–up Control Low pressure clutch cycling switch Input to PCM, accumulator mounted - cycles clutch off below -1° C (30° F), cycles back on above 7.2° C (45° F) Low psi Control Low pressure clutch cycling switch Accumulator mounted - opens below 172 kPa (25 psi) - resets above 276 kPa (40 psi) High psi Control High pressure cut out switch Discarge line mounted - opens at discharge pressure above 3100 - 3375 kPa (450 - 490 psi) - resets at 1860 - 2275 kPa (270 - 330 psi) Compressor Clutch Coil Draw 2.0 - 3.7 amps @ 12V ± 0.5V @ 21° C (70° F) Compressor Clutch Air Gap 0.35 - 0.65 mm (0.014 - 0.026 in)
A/C SYSTEM SPECIFICATION CHART
Item</B> Description</B> Notes</B> Compressor Nippondenso 10PA17 ND-8 PAG Oil Freeze–up Control Low pressure clutch cycling switch Input to PCM, accumulator mounted - cycles clutch off below -1° C (30° F), cycles back on above 7.2° C (45° F) Low psi Control Low pressure clutch cycling switch Accumulator mounted - opens below 172 kPa (25 psi) - resets above 276 kPa (40 psi) High psi Control High pressure cut out switch Discarge line mounted - opens at discharge pressure above 3100 - 3375 kPa (450 - 490 psi) - resets at 1860 - 2275 kPa (270 - 330 psi) Compressor Clutch Coil Draw 2.0 - 3.7 amps @ 12V ± 0.5V @ 21° C (70° F) Compressor Clutch Air Gap 0.35 - 0.65 mm (0.014 - 0.026 in)
EarthCruzn
New member
Steel,
Did you get my PM on the 97 TJ re- low side pressure?
Did you get my PM on the 97 TJ re- low side pressure?
SteelHeadz
Super Moderator
Got it. Reply sent.8)
EarthCruzn
New member
Thanks Steel for the reply, I went ahead and put more 134 in and brought the low side up to 40psi(was at 33psi) the vent temp went down from 60 degrees(at 33 psi) to 44 degrees(at 40 psi) what a difference 16 degrees makes here in Florida in the 100 degree heat! Thanks again for the 44 degree weather inside the Florida Jeep with a BLACK soft top!
I owe you one.
I owe you one.
