2005 air conditioning fading
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2005 air conditioning fading
My a.c. only works for a few minutes when I first start up. It sounds like the compressor kicks in as does the fan on the radiator. After a couple of minutes the cold air fades. It has always worked but it looks like it needs some attention for this season. Fuses are good. 204,000 k. Any tips?
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Re: 2005 air conditioning fading
Does the compressor continue to run after it gets warm?
Do the fans continue to run after it gets warm?
Do the fans continue to run after it gets warm?
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OK I drove it from 8-8:20 pm and A.C. was freezin'.. evening temperature outside had dropped to 21C. Then I stopped and left it running. The A.C. went from freezing to normal (21C). I had someone turn the inside button on the dash on/off several times and the fan came on/off but I don't think the compressor kicked in. There was no noticeable change in engine sound/strain, just the fan turning on/off. WEIRD...
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From: Midwest. Aiming about mid-chest
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Assuming the radiator fans are still running but the compressor clutch quit engaging......Next step would be to verify whether or not the compressor clutch is still receiving power (B+) when the compressor quits.
After it quits: Tap on clutch relay. Does the compressor engage immediately?
After it quits: Tap on clutch relay. Does the compressor engage immediately?
If you think a good mechanic is expensive, try hiring a bad one
Joined: Dec 2011
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From: Midwest. Aiming about mid-chest
Rep Power: 519 If you think a good mechanic is expensive, try hiring a bad one
Joined: Dec 2011
Posts: 32,017
Likes: 256
From: Midwest. Aiming about mid-chest
Rep Power: 519 
If you think a good mechanic is expensive, try hiring a bad one
Joined: Dec 2011
Posts: 32,017
Likes: 256
From: Midwest. Aiming about mid-chest
Rep Power: 519 Re: 2005 air conditioning fading
Earlier you stated:
I drove it from 8-8:20 pm and A.C. was freezin'.
If it needs a clutch or a coil, you can buy the individual pieces through Honda.
I'd much rather keep a working original compressor than install any aftermarket reman (that will probably only last one year).
If you think a good mechanic is expensive, try hiring a bad one
Joined: Dec 2011
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From: Midwest. Aiming about mid-chest
Rep Power: 519 Re: 2005 air conditioning fading
Remember, I stated this:
I assume you haven't done this.
This stuff is easy to figure out if you have a little time, a few tools, and a little knowledge of how it works.
Diagnosing can help you avoid pissing money away on wildass guesses.
This stuff is easy to figure out if you have a little time, a few tools, and a little knowledge of how it works.
Diagnosing can help you avoid pissing money away on wildass guesses.
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Yes,I agree. It was fine today and blew cold, so cold tonight I had to switch it off. I will resume diagnosis tomorrow. The friendly neighbourhood mechanic says the only solution is to put a whole new compressor, drier etc to the tune of $700+.... Hard for me to justify that after it worked fine today!
If you think a good mechanic is expensive, try hiring a bad one
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From: Midwest. Aiming about mid-chest
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The friendly neighbourhood mechanic says the only solution is to put a whole new compressor, drier etc to the tune of $700+....
I don't get my money from guessing.
Guessing doesn't net consistent good results.
Hard for me to justify that after it worked fine today!
It's not the compressor (not the mechanical, pumping part of it anyway).
It's not low on freon.
You need to figure out why the compressor quits operating, and it's simple electrical diagnosis at this point. Just gotta do the testing WHILE it's quit.
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OK back at it. It is working most of the time. When it quits after running a while, the clutch does not engage. It resumes if I tap it. The cabin filters were clogged so I replaced them if that matters. Power is there.
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From: Midwest. Aiming about mid-chest
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39794-SDA-A05 is the part number for the updated/improved relay.
MITSUBA is the brand name on the improved part.
MITSUBA is the brand name on the improved part.
If you think a good mechanic is expensive, try hiring a bad one
Joined: Dec 2011
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From: Midwest. Aiming about mid-chest
Rep Power: 519 Re: 2005 air conditioning fading
You tapped on the clutch itself and it started working again?
Check clearance between the clutch plate and the pulley.
Spec is 0.50mm +/- 0.15mm
Check resistance of the coil too. Spec says
3.05-3.35 ohms
Check clearance between the clutch plate and the pulley.
Spec is 0.50mm +/- 0.15mm
Check resistance of the coil too. Spec says
3.05-3.35 ohms
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