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Message
re: Car air conditioning doesn't get very cold at idle... Reasons? Update pg 2
Posted on 4/28/19 at 6:10 pm to cubsfan5150
Posted on 4/28/19 at 6:10 pm to cubsfan5150
quote:
2015 Optima
I’ve sold a few of those and they all did that. Try not to stop.
0
Posted on 4/28/19 at 6:11 pm to cubsfan5150
The compressor clutch may be wearing out. It gets cold when the engine is turning at a higher speed because the barely engaging compressor clutch is being turned faster by the serpentine belt. When you’re idling at 7-800 RPM the clutch isn’t engaging.
Posted on 4/28/19 at 6:16 pm to cubsfan5150
Try washing out your condenser. They make a hose attachment for $30 but you could easily make one from a scrap piece of tubing.
Edit
Take your water hose and spray out your radiator /condenser as best you can. If that makes a difference then you can fabricate /buy a wand
Edit
Take your water hose and spray out your radiator /condenser as best you can. If that makes a difference then you can fabricate /buy a wand
This post was edited on 4/28/19 at 6:19 pm
Posted on 4/28/19 at 6:44 pm to cubsfan5150
As most people in here are saying it is the electric fans that cool the radiator. You need to open the hood with the AC on and look to see that the fans are working..If not give the fan motors a couple of good hits with a hammer or a wrench (I am not kidding). The fans should start to work..The fans could have some corrosion and the hits would dislodge the crap.
Posted on 4/28/19 at 6:57 pm to cubsfan5150
Check to see that your condenser fan is kicking on.
Posted on 4/28/19 at 7:30 pm to cubsfan5150
Check your fan clutch first
Posted on 5/6/19 at 7:37 pm to cubsfan5150
So I bought a can of coolant and put a little bit in and the ac got cooler immediately... Would you get the system evac'd and recharged at this point or just monitor it and add more of the can if needed?
Posted on 5/6/19 at 7:54 pm to cubsfan5150
You can buy a can of coolant with leak detector and you can also get the kind with leak stop. The kind with leak stop should stop any minor leaks in your system.
Posted on 5/6/19 at 8:16 pm to cubsfan5150
Stick actual gauges on it, and come back with the results. You can't just keep adding more and more to the system. R134a has an optimal pressure differential at each temp to cool properly
Posted on 5/6/19 at 8:21 pm to cubsfan5150
From an HVAC guys perspective who has never worked on automotive but knows the basics of refrigeration I’d say your compressor or Evap/condensing fans aren’t getting enough power while idling to do their job efficiently. Or maybe the coils are super dirty. Just a guess.
Posted on 5/6/19 at 8:22 pm to cubsfan5150
quote:
can of coolant
Refrigerant. Coolant goes elsewhere.
Posted on 5/6/19 at 8:22 pm to Snaxnstuff
Adding refrigerant when it isn’t needed is pointless. Either it needs it or it doesn’t. Your case sounds like it doesn’t need it.
Refrigerant doesn’t go bad or disappear, once your system has it it doesn’t go away unless it has a leak. If it had a leak it wouldn’t cool at all and would constantly freeze up
Refrigerant doesn’t go bad or disappear, once your system has it it doesn’t go away unless it has a leak. If it had a leak it wouldn’t cool at all and would constantly freeze up
Posted on 5/6/19 at 8:27 pm to cubsfan5150
quote:FIFY
2015 Less than Optima
Posted on 5/6/19 at 8:28 pm to cubsfan5150
Too many vowels ya hurd?
Posted on 5/6/19 at 8:29 pm to Sir Drinksalot
quote:dude
Sir Drinksalot
Posted on 5/6/19 at 8:30 pm to OWLFAN86
Duuuuude
Posted on 5/6/19 at 8:31 pm to Sir Drinksalot
<3
Posted on 5/6/19 at 8:37 pm to Hammertime
Can’t
The amount of people who don’t know refrigerant isn’t gasoline is shocking. Glad some people know.
quote:
Can’t just keep adding more and more to the system
The amount of people who don’t know refrigerant isn’t gasoline is shocking. Glad some people know.
Posted on 5/6/19 at 8:41 pm to cubsfan5150
Hey dummy why not edit your original post dummy
Posted on 5/6/19 at 8:45 pm to cubsfan5150
quote:
So I bought a can of coolant and put a little bit in and the ac got cooler immediately... Would you get the system evac'd and recharged at this point or just monitor it and add more of the can if needed?
No, system only needs to be evacuated if it has been opened to the atmosphere...evacuating it boils out any moisture before the new refrigerant is added. Since your system was cooling when the engine was raced, that tells me that the system still had some amount of pressure and should not need evacuating.
I would say monitor and add refrigerant as needed. As the others say, overfilling is not beneficial, so get the proper info on pressures and try to stay around the pressures specified.
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