Air Cond Recharge: Gauge not reading pressure-Do I need a special fitting, or what ?
Panchoz3
05-07-2009, 12:19 PM
Air Cond Recharge: Gauge not reading pressure-Do I need a special fitting, or what ?
My A/C is cooling, but wanted to see if it needs to be topped off.
Hooked up gauge to low pressure line on 2000 430CLK. Gauge is not reading any pressure.
Tested/connected gauge on 1997 BMW Z3. Gauge does not read pressure.
Tested/connected gauge to 1993 Jeep ZJ. Gauge reads good pressure.
Gauge reads pressure on American, but NOT on German cars.
So, is this a German thing?
Do I need some special fitting, or what?
Thanks
Note: All cars, CLK, Z3, are blowing cold air--have good a/c units.
My A/C is cooling, but wanted to see if it needs to be topped off.
Hooked up gauge to low pressure line on 2000 430CLK. Gauge is not reading any pressure.
Tested/connected gauge on 1997 BMW Z3. Gauge does not read pressure.
Tested/connected gauge to 1993 Jeep ZJ. Gauge reads good pressure.
Gauge reads pressure on American, but NOT on German cars.
So, is this a German thing?
Do I need some special fitting, or what?
Thanks
Note: All cars, CLK, Z3, are blowing cold air--have good a/c units.
eclass
05-12-2009, 03:50 PM
93 jeep = R12
all others = r134a
the fittings are different.
all others = r134a
the fittings are different.
Panchoz3
05-13-2009, 10:08 PM
93 jeep = R12
all others = r134a
the fittings are different.
You are very wrong.
1993 ZJ, purchased new in May 1992 (30 days after into to market)
See link:
http://www.panchogun.com/FVWebPhotos/FV-Cars-ZJ-R134.jpg
all others = r134a
the fittings are different.
You are very wrong.
1993 ZJ, purchased new in May 1992 (30 days after into to market)
See link:
http://www.panchogun.com/FVWebPhotos/FV-Cars-ZJ-R134.jpg
eclass
05-15-2009, 08:00 AM
On the clk,
with key on- set temp. controls to 72 on left and right, press the REST button and hold it for more than 6 seconds. When the display changes press the left auto button to change the number shown on the left. Press until the number 7 is displayed on the left- the number shown on the right will be your system pressure in BAR on the high side.
As long as the sensor is working correctly this is your pressure, with that said.. are you hooking up the the low side or the high side with your gauge? They are different in size.
Components location for A/C system
Figure 1
A High pressure connection
B Low pressure connection (engine 112)
B12 Refrigerant pressure sensor
B12/1 Refrigerant temperature sensor
1 A/C compressor
2 High pressure line
3 Condenser
4 Low pressure line
5 Receiver/dryer
6 Suction line
7 Low pressure line to evaporator
8 Expansion valve
9 Evaporator http://www.startekinfo.com/manual/volumes/cc/3_10/41_1.gif
with key on- set temp. controls to 72 on left and right, press the REST button and hold it for more than 6 seconds. When the display changes press the left auto button to change the number shown on the left. Press until the number 7 is displayed on the left- the number shown on the right will be your system pressure in BAR on the high side.
As long as the sensor is working correctly this is your pressure, with that said.. are you hooking up the the low side or the high side with your gauge? They are different in size.
Components location for A/C system
Figure 1
A High pressure connection
B Low pressure connection (engine 112)
B12 Refrigerant pressure sensor
B12/1 Refrigerant temperature sensor
1 A/C compressor
2 High pressure line
3 Condenser
4 Low pressure line
5 Receiver/dryer
6 Suction line
7 Low pressure line to evaporator
8 Expansion valve
9 Evaporator http://www.startekinfo.com/manual/volumes/cc/3_10/41_1.gif
Automotive Network, Inc., Copyright ©2024