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Started By
Message
Car AC problem: The car AC is only cold when driving.
Posted on 5/11/18 at 10:56 am
Posted on 5/11/18 at 10:56 am
When Its idle, the car temp gauge starts increasing and the AC goes out ( fan still blows, just not cold).
WTF
Start driving, temp goes down and it starts working again.
Should I just not stop at stop signs and red lights?
WTF
Start driving, temp goes down and it starts working again.
Should I just not stop at stop signs and red lights?
This post was edited on 5/11/18 at 1:14 pm
29
Posted on 5/11/18 at 11:01 am to StickD
Sounds like a lack of airflow through your condenser at idle. Check to make sure your cooling fans are running while the ac is on and the compressor is engaged.
Also look behind your grille and make sure the condenser it not covered with bugs and grass.
Also look behind your grille and make sure the condenser it not covered with bugs and grass.
This post was edited on 5/11/18 at 11:05 am
Posted on 5/11/18 at 12:58 pm to Maverick01
Eng Temp gauge stay the same the whole time?
Posted on 5/11/18 at 1:01 pm to StickD
Sounds like you're low on blinker fluid.
Posted on 5/11/18 at 1:09 pm to StickD
(no message)
This post was edited on 2/15/25 at 3:33 pm
Posted on 5/11/18 at 1:13 pm to StickD
Need a new Johnson Rod
Posted on 5/11/18 at 1:14 pm to StickD
You probably have 2 electric fans blowing on your radiator. 1 or both is out. Pop your hood and look.
Posted on 5/11/18 at 1:15 pm to StickD
do you have an auto/stop start system in your car? my truck has it and its annoying as frick
Posted on 5/11/18 at 1:16 pm to StickD
psi switch?
Posted on 5/11/18 at 1:17 pm to StickD
quote:
When Its idle, the car temp gauge starts increasing
Water pump bad or blockage in lines preventing coolant from circulating in engine?
Posted on 5/11/18 at 1:19 pm to Milk
How can you tell if an electric fan is bad?
Posted on 5/11/18 at 1:21 pm to anewguy
(no message)
This post was edited on 2/15/25 at 3:32 pm
Posted on 5/11/18 at 1:30 pm to StickD
I would guess fan and lack of cooling air flow as mentioned above. Could possibly be belt slipping on compressor also. Had this problem after getting a detail done on my truck. They sprayed that greasy shiny shite under the hood and had the belt slipping at idle but once moving the rpm made up for the slip.
Posted on 5/11/18 at 1:38 pm to StickD
New car? Maybe the car's turning off.
Posted on 5/11/18 at 1:39 pm to StickD
quote:
When Its idle, the car temp gauge starts increasing and the AC goes out ( fan still blows, just not cold).
WTF
Start driving, temp goes down and it starts working again.
Should I just not stop at stop signs and red lights?
You haven't given us enough information to diagnose the vehicle.
I might would start with the belt. It could be slipping, which would cause your water pump and ac compressor to have issues. Otherwise, these issues might be separate problems.
Definitely make sure that your condenser and radiator aren't covered with bullshite.
Losing any water?
Ac compressor cycling?
Low side and high side pressures would be great if you can hook up some gauges.
Posted on 5/11/18 at 1:40 pm to StickD
You probably need new condensor fans
And you probably are driving a Honda.
And you probably are driving a Honda.
This post was edited on 5/11/18 at 1:41 pm
Posted on 5/11/18 at 1:42 pm to StickD
What kind of car?
Posted on 5/11/18 at 1:48 pm to X123F45
(no message)
This post was edited on 2/15/25 at 3:32 pm
Posted on 5/11/18 at 2:01 pm to StickD
Maybe bad fan clutch (if you have a fan with one). Sounds similar to what you describe.
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