a/c
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Tuned
Joined: Jan 2005
Posts: 344
Likes: 2
a/c
I'm sure this is a repeat, so don't be angry ok.
Could someone tell me why my a/c is not that cool when sitting still, but when I'm moving it's cold as heck??? Any simple solution before I go pay a shop boocoo bucks?
Could someone tell me why my a/c is not that cool when sitting still, but when I'm moving it's cold as heck??? Any simple solution before I go pay a shop boocoo bucks?
Sit. Stay.
Joined: Oct 2001
Posts: 18,308
Likes: 20
From: Washington State
Save your money.
Make sure the condensor is free from bugs and stuff. Ther condensor is the radiator looking thing in front of the radiator. If it is clogged up with bugs it can impede the limited airflow provided by the engine's fan. Once moving the forward momentum must overcome any "clogging".
Clean it out by flushing it out from the back. If you spray in the front you only push the stuff in deeper. You may have to remove the stuff to get a good angle of attack. Soak it down with the windshield washer stuff that is said to cut through bug grime or something similar first.
Also make sure your refrigerant is up to the correct pressure/amount.
Make sure the condensor is free from bugs and stuff. Ther condensor is the radiator looking thing in front of the radiator. If it is clogged up with bugs it can impede the limited airflow provided by the engine's fan. Once moving the forward momentum must overcome any "clogging".
Clean it out by flushing it out from the back. If you spray in the front you only push the stuff in deeper. You may have to remove the stuff to get a good angle of attack. Soak it down with the windshield washer stuff that is said to cut through bug grime or something similar first.
Also make sure your refrigerant is up to the correct pressure/amount.
Senior User
Joined: Mar 2007
Posts: 217
Likes: 1
From: Katy Texas
My wifes 02 EX does the same thing, at idle vent temp is about 70-75, at hwy speeds i've seen it as low as 37 degrees, i took it to the dealer under factory warranty and they said everything was normal (of course), the condenser is clean, fan clutch maybe?
Sit. Stay.
Joined: Oct 2001
Posts: 18,308
Likes: 20
From: Washington State
Probably not anything wrong with the clutch fan. This is just a common problem with our trucks. If nothing is wrong with it then a suggestions to improve it would either be install electric fans or try and find a Syclone fan clutch. Both would improve airflow over the condenser when parked.
Tuned
Joined: Feb 2003
Posts: 451
Likes: 5
From: Raleigh, NC.
I have the same problem. Last summer, I was very tired of it. Was thinking of putting on a additional pusher fan in the front. Others have done this, but I was not sure how to hook it up to the AC on wiring with the relay.
Anyone else done this mod?
Anyone else done this mod?
Tuned
Joined: Feb 2003
Posts: 451
Likes: 5
From: Raleigh, NC.
I hear ya on that ,but I would forget it is on and think that it would be better if it was turned on only when the a/c was activated. Then it is automatic like the rest of the system.
My bets are that there is someone around that knows which wire color is the ON wire and could tap into it into a relay then to the fan. Could also use the switch for a manual override in case of the unlikely stuck thermostat to help cool down temporarily.
My bets are that there is someone around that knows which wire color is the ON wire and could tap into it into a relay then to the fan. Could also use the switch for a manual override in case of the unlikely stuck thermostat to help cool down temporarily.
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Senior User
Joined: Apr 2004
Posts: 319
Likes: 1
From: Oshawa/Ontario/Canada
Some of us have vastly improved this situation by disabling the EGR circuit (I'm sure there's a thread somewhere on that). The EGR circuit cools down your exhaust gasses with engine coolant and places a big load on the cooling system. The EGR is most active at idle.
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Junior User
Joined: Dec 2004
Posts: 82
Likes: 0
From: SW Chicago Burbs
It isn't only a lack of airflow but also a lack of engine speed. The compressor isn't at full output at an idle either.
Almost all AC systems are like this. A little more engine speed and things work perfect.
One other possible cause is you are slightly low on gas in the AC system. A few OZ may help.
Almost all AC systems are like this. A little more engine speed and things work perfect.
One other possible cause is you are slightly low on gas in the AC system. A few OZ may help.
Tuned
Joined: Feb 2003
Posts: 451
Likes: 5
From: Raleigh, NC.
I am good on freon. Just need to add some extra air at idle. Brains, how did you add your fan? I would like to put one on, but would like it to be controlled by the AC On and not manual so I have to turn it off and on every time I stop.
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