Ac pressure to high error (HVAC)
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Ac pressure to high error (HVAC)
Hi,
I have a disco 3, HSE spec, 2.7 automatic, 2008, around 200k on the clock.
So last Autumn I changed ac compressor and some other components. Now I went to fill it again with coolant agent at the mechanic shop using a special machine. First, as I saw, It created a vacuum and checked for leaks, retrieved 80 grams of coolant agent and fill it up with 550 grams (it should be 880 cause I also have the climate control in the back). After that the guy there saw the pressure is way to high, around 3200 kPa, and you could hear a hissing sound. When I saw that I immediately shut down the car because the "mechanic" had no intention to stop it. He was curious what is going to happen.
That dude, had no clue what he is doing as I saw him. Got back home and scanned the car with a ap200 for error codes. I had a stored error for ac high pressure but nothing else. Now If I am checking the HVAC live data the only error that I see is a left air bled actuator position - invalid when it should be cold.
If I switch the temp a couple of degrees up, let's say 22, it goes to intermittent. One time I managed, to do the reset procedure (rec+econ) to put in on cold and the pressure seems to be ok.
Been to a second shop and they said I have to change the compressor. But I am telling you it doesn't have 48 hours of usage this one.
Now I have no clue where to start digging. I took off the plastic under the steering column (LHD), then the plastic with the light but no idea where is that sun of a gun. I have 2 left hands most of the time, but I am willing to take my time and start learning to do stuff around my car the right way.
Any idea what could be and how to reach it will be very much appreciated.
Many thanks,
Cata
I have a disco 3, HSE spec, 2.7 automatic, 2008, around 200k on the clock.
So last Autumn I changed ac compressor and some other components. Now I went to fill it again with coolant agent at the mechanic shop using a special machine. First, as I saw, It created a vacuum and checked for leaks, retrieved 80 grams of coolant agent and fill it up with 550 grams (it should be 880 cause I also have the climate control in the back). After that the guy there saw the pressure is way to high, around 3200 kPa, and you could hear a hissing sound. When I saw that I immediately shut down the car because the "mechanic" had no intention to stop it. He was curious what is going to happen.
That dude, had no clue what he is doing as I saw him. Got back home and scanned the car with a ap200 for error codes. I had a stored error for ac high pressure but nothing else. Now If I am checking the HVAC live data the only error that I see is a left air bled actuator position - invalid when it should be cold.
If I switch the temp a couple of degrees up, let's say 22, it goes to intermittent. One time I managed, to do the reset procedure (rec+econ) to put in on cold and the pressure seems to be ok.
Been to a second shop and they said I have to change the compressor. But I am telling you it doesn't have 48 hours of usage this one.
Now I have no clue where to start digging. I took off the plastic under the steering column (LHD), then the plastic with the light but no idea where is that sun of a gun. I have 2 left hands most of the time, but I am willing to take my time and start learning to do stuff around my car the right way.
Any idea what could be and how to reach it will be very much appreciated.
Many thanks,
Cata
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