Of course, if you are low, there is a good possibility that you have a leak. Tracking down a leak is a bit more involved and may require you visit a service center if you're not up to the task of using dye and trying to spot the leak yourself.joirhone said:that is wonderful information! I think I can do this myself and save the trip to the a/c shop -- if it doesn't work, then I can go.
Question -- does it make a difference that mine is non-turbo? You mentioned that it is by the water pump, but I thought my water pump was on the left side, if I am facing the car? Just want to make sure that I am doing the right thing
This is not always true with a R134 system. The dealer server advisor will tell you that the average recharge rate for a R134 system is approximatly every 4 to 5 years on average. After working in the HVAC industry for a few years during the first round use of R134 I can tell you that the 2 things I have witnessed were loss of freon even though no leaks present and that R134 does not have the cooling capabilities of R12 or R22(mostly used in commercial and refrigeration setups) which were used in earlier systems.Rob in Atlanta said:Of course, if you are low, there is a good possibility that you have a leak.
That is a good point. 5 years may be a long time between charges on the new systems.stevehayes01 said:... the average recharge rate for a R134 system is approximatly every 4 to 5 years on average.
Could be a pinhole in your evaporator.joirhone said:I went to a parts store and got the recharge kit. Pretty simple! Now a couple of things are happening -- 1) I hear a low hissing coming from the dash (I think)when I am driving the car and 2) the air is colder but not ice cold. Any suggestions?
That sounds about right. On my car, the pressure measured with the engine and AC off is around 90-100 psi at 80F ambient. However, that just tells you there is refrigerant in the system, and it did not leak out. It does not mean there is the right amount for the AC to work at best efficiency.When I hooked up the pressure gage as shown in the photo above, it read the pressure as being about 85-90 psi. The ambient temperature is 75-80 deg. F