2009 Honda Civic Cooling fan running continuously

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Radiator fan runs continuously AC blows warm...cool maybe. Where do I look?

I know nothing about AC systems.
shocked.gif
 
Originally Posted By: Doog
Radiator fan runs continuously AC blows warm...cool maybe. Where do I look?

I know nothing about AC systems.
shocked.gif



?? if your ac is on the fan will be on.. what are you asking?

Better description of problem?
 
For what it costs find a good AC shop to diagnose the problem due to the AC being warm.
 
Your condenser fan always runs if your A/C is on.
Radiator fan cycles off and on.

Maybe a small shot of refrigerant from DIY can ?
 
Originally Posted By: xxch4osxx
Low refrigerant possibly.


+1 - that would be my best guess as well
 
Originally Posted By: Mr Nice
Your condenser fan always runs if your A/C is on.
Radiator fan cycles off and on.

Maybe a small shot of refrigerant from DIY can ?


Did that once to my 97 Escort. Provided A/C that was far colder and efficient than any Cadillac/ Volvo we rented.

When the A/C turns warm on the Focus, I'll probably do the same with it
 
Not sure if corrected by 2009, however Honda/Acura had ac relay problems (made in USA part
smile.gif
) in my 2007 mdx and had similar symptoms. It was a $9 fix to buy a new ac relay from dealer. Same issue wife's Subaru that mechanic did not diagnose testing everything. Spent $6 on aftermarket relay fine.

Just saying a cheap try before you take it in. Don't blindly add freon.
 
Last edited:
Originally Posted By: Mr Nice
Your condenser fan always runs if your A/C is on.
Radiator fan cycles off and on.

Maybe a small shot of refrigerant from DIY can ?


Little cars usually have just one fan.
 
If the AC relay is bad, the clutch will not engange.
So, check that first.

Next, you need to get what we call the AC Gauge Manifold.
This is used to measure the low pressure and high pressure of the AC system. They have to be correct depending on the ambient temperature. If not, then there is something wrong.

You need add some refrigerant to top it off and see if the pressure can go steady. If not, then there is a leak somewhere. You need to identify the leak and fix it.

Make sure the clutch can engange and not seizing after there are enough pressure of refrigerant.
If it seized, then you have to change the compressor or just the clutch depending if it is just the clutch.
Now, price of clutch is sometimes more than the whole compressor difference is you have to open the whole system when changing the compressor and you have to do the proper flush and vacuum and replace the dryer.
Then you have to decide if you want to change the condenser.
A lot of the newer design condenser is not flushable.
 
Originally Posted By: MarkM66
Originally Posted By: Mr Nice
Your condenser fan always runs if your A/C is on.
Radiator fan cycles off and on.

Maybe a small shot of refrigerant from DIY can ?


Little cars usually have just one fan.


This car has two fans.
 
My local shop has a "free AC performance check up" coupon on their website...going in tomorrow.
 
Originally Posted By: madRiver
Not sure if corrected by 2009, however Honda/Acura had ac relay problems (made in USA part
smile.gif
) in my 2007 mdx and had similar symptoms. It was a $9 fix to buy a new ac relay from dealer. Same issue wife's Subaru that mechanic did not diagnose testing everything. Spent $6 on aftermarket relay fine.

Just saying a cheap try before you take it in. Don't blindly add freon.


where is the relay located?
 
Originally Posted By: madRiver
Not sure if corrected by 2009, however Honda/Acura had ac relay problems (made in USA part
smile.gif
) in my 2007 mdx and had similar symptoms. It was a $9 fix to buy a new ac relay from dealer. Same issue wife's Subaru that mechanic did not diagnose testing everything. Spent $6 on aftermarket relay fine.

Just saying a cheap try before you take it in. Don't blindly add freon.


UPDATE Ok so I searched the internet on YouTube and found several videos about the dreaded relay.....so I figured WTH? Got one at AAP for $5.99 and VOILA!! The compressor came on and it started blowing cool...then colder...took it for a 5 mile ride...blowing cold...Thank You VERY Much!!
thumbsup2.gif
thumbsup2.gif
 
Originally Posted By: Doog
UPDATE Ok so I searched the internet on YouTube and found several videos about the dreaded relay.....so I figured WTH? Got one at AAP for $5.99 and VOILA!! The compressor came on and it started blowing cool...then colder...took it for a 5 mile ride...blowing cold...Thank You VERY Much!!
thumbsup2.gif
thumbsup2.gif



Put the old relay back in and take it to Conrads for the free inspection to see how much their estimate will be to fix it.
laugh.gif
 
Originally Posted By: Doog
Originally Posted By: madRiver
Not sure if corrected by 2009, however Honda/Acura had ac relay problems (made in USA part
smile.gif
) in my 2007 mdx and had similar symptoms. It was a $9 fix to buy a new ac relay from dealer. Same issue wife's Subaru that mechanic did not diagnose testing everything. Spent $6 on aftermarket relay fine.

Just saying a cheap try before you take it in. Don't blindly add freon.


UPDATE Ok so I searched the internet on YouTube and found several videos about the dreaded relay.....so I figured WTH? Got one at AAP for $5.99 and VOILA!! The compressor came on and it started blowing cool...then colder...took it for a 5 mile ride...blowing cold...Thank You VERY Much!!
thumbsup2.gif
thumbsup2.gif



Awesome, great to hear!
 
Originally Posted By: SatinSilver
Originally Posted By: Doog
UPDATE Ok so I searched the internet on YouTube and found several videos about the dreaded relay.....so I figured WTH? Got one at AAP for $5.99 and VOILA!! The compressor came on and it started blowing cool...then colder...took it for a 5 mile ride...blowing cold...Thank You VERY Much!!
thumbsup2.gif
thumbsup2.gif



Put the old relay back in and take it to Conrads for the free inspection to see how much their estimate will be to fix it.
laugh.gif



I thought about that but I am too busy right now.
 
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