Electric cooling fan
Thanks Don.I am beginning to feel as though this car is possessed. Your diagram got me thinking to try some other tests.I went back down and started the car.It had been sitting for a couple of hours.The cooling fan was not on.Hit the AC it immediately came on blowing cold air, fan running.Shut off AC; fan continued to run (may be normal who knows?).Shut the car off restarted it.No fan.Turned AC on fan starts AC cold.I think tomorrow I will start it drive it without AC and see if fan comes on.
Thanks for taking the time to help me.
Thanks for taking the time to help me.
Yes Snoopy it hangs around 185 degrees which is great. I had my Brother in law check the freon level and he said it was fine.When I asked him today how many psi it had he told me it was around 22PSI LS 152PSI HS.Well I have since found out that is too low.What apparently is happening is as the car warms up the psi is increasing just enough(160 psi) for the compressor and fan to actually work. I am pretty sure this is the only problem.I will update this thread when I get it topped off.Can someone confirm this system at 82 degrees and over 50% humidity should be 30-45 psi LS and 192-251 psi HS?
https://www.chevyhhr.net/forums/prob...e-specs-41530/
This is where I saw the info.
This is where I saw the info.
As an HVAC/MVAC tech I'm telling you that refrigerant doesn't evaporate or get used up. The only way that system gets low is if it leaks. Do you have a leak detector? Leaks can be small enough as to not be seen by the naked eye.
It has been my experience that the system will have some gas escape over time . I have seen it many times.
Anytime you have rubber seals and temperature changes you will have seeping. A good example of this is your tires or the Space Shuttle Challenger. Both examples of a "closed system". I know there are lots of folks out there who think that it's impossible for the gas to leak without there being some kind of issue but most of those people are the ones selling the service. No offense.jme
Anytime you have rubber seals and temperature changes you will have seeping. A good example of this is your tires or the Space Shuttle Challenger. Both examples of a "closed system". I know there are lots of folks out there who think that it's impossible for the gas to leak without there being some kind of issue but most of those people are the ones selling the service. No offense.jme


