Honda Civic 2009 FD Intermittent Cooling

[suysuy]

I have a problem. Yung aircon ng honda civic ko intermittent.

Minsan pag parked under the sun, 5mins bago lumamig. Nag on ang fan ng radiator pero walang click sa compressor. Meaning parang fan mode siya.

Minsan naman pag malamig na, natural nag ooff ang compressor pag yung desired temp or lamig ay naabot na, pag once need ulit ng compressor umandar, hindi na siya ulit umaandar. Kaya wala nanamang lamig.

Turning off and on the aircon repeatedly can sometimes fix the problem. The compressor engages. But soon after a while, when it disengages, it wont engage again when the need arises.

I've read baka ac field coil daw yung may problema. Heard of this problem? Is there an easy fix for this? And how much?

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[shadow]

I have a problem. Yung aircon ng honda civic ko intermittent.

Minsan pag parked under the sun, 5mins bago lumamig. Nag on ang fan ng radiator pero walang click sa compressor. Meaning parang fan mode siya.

Minsan naman pag malamig na, natural nag ooff ang compressor pag yung desired temp or lamig ay naabot na, pag once need ulit ng compressor umandar, hindi na siya ulit umaandar. Kaya wala nanamang lamig.

Turning off and on the aircon repeatedly can sometimes fix the problem. The compressor engages. But soon after a while, when it disengages, it wont engage again when the need arises.

I've read baka ac field coil daw yung may problema. Heard of this problem? Is there an easy fix for this? And how much?

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Pabawasan mo ng spacer yun magnetic bigyan mo lang tip yun gagawa
no need to evacuate freon dukutin lang yan or Check mo yun relay ng compressor


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[Archerfish]

I experience this from a friend's Optra. The operation is intermittent just as you described. The same solution is just as what you've said, repeatedly turning off and on the switch until it runs.

One possibility is the ECU, somewhere around it that sends or controls the signal. We haven't verified it as the owner didn't want to spend a few thousand pesos for the diagnosis and repair.

The solution? Connect the wire directly to the battery. As soon as the car starts, the AC will run. Certainly not the best solution, but it worked!

[shadow]

I experience this from a friend's Optra. The operation is intermittent just as you described. The same solution is just as what you've said, repeatedly turning off and on the switch until it runs.

One possibility is the ECU, somewhere around it that sends or controls the signal. We haven't verified it as the owner didn't want to spend a few thousand pesos for the diagnosis and repair.

The solution? Connect the wire directly to the battery. As soon as the car starts, the AC will run. Certainly not the best solution, but it worked!

Hindd ganyan ka grabe yan sakit talaga ng FD yan intermittent A/C either relay lang or bawasan yun spacer


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[sean-archer]

That happened to my fd as well. The mechanic adjusted something in the compressor, spacer nga ba yun? That solved the problem. I gave him 200.

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[suysuy]

Thanks for the tip. Mura lang pala kung ganun. Kung bibili nalang ako ng bagong magnetic clutch mas mabuti ba? No need pabawas ng spacer thingy?

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[Archerfish]

Thanks for the tip. Mura lang pala kung ganun. Kung bibili nalang ako ng bagong magnetic clutch mas mabuti ba? No need pabawas ng spacer thingy?

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Perhaps it will be much easier to "fix" it, if that spacer thing is really an existing issue.

[SpinCycle]

Thanks for the tip. Mura lang pala kung ganun. Kung bibili nalang ako ng bagong magnetic clutch mas mabuti ba? No need pabawas ng spacer thingy?

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The decision is yours. But the fix is relatively harmless and so much cheaper than the alternative.


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[dr. d]

Thanks for the tip. Mura lang pala kung ganun. Kung bibili nalang ako ng bagong magnetic clutch mas mabuti ba? No need pabawas ng spacer thingy?

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that spacer/washer can be removed for next to nothing. with a little practice, you can do it yourself. and the fix should last several years.
if i were me, i'd consider buying a new clutch, only if there is no more spacer to remove. "sagad na, 'ika nga."
also, mas mahirap palitan yung buong assembly, kaysa sungkitin lang yung isang washer.
magkano ba magnetic clutch ...? 3K ba...? nalimutan ko na...

[jick.cejoco]

Every post herein is pointing straight to the compressor clutch indiscriminately without checking the high and low side pressures. If you were mechanics, you will have misdagnoses left and right. Learn the scientific and logical approach. Dont be just parts replacers, be or try to be technicians

[shadow]

Every post herein is pointing straight to the compressor clutch indiscriminately without checking the high and low side pressures. If you were mechanics, you will have misdagnoses left and right. Learn the scientific and logical approach. Dont be just parts replacers, be or try to be technicians

True, but advices given was based on experience and besides the issue is well documented and a known problem of the said model.


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[sean-archer]

True, but advices given was based on experience and besides the issue is well documented and a known problem of the said model.


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And considering these advices saves time and money. If an advice didn't work, then you can always go to other routes.

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[Archerfish]

Every post herein is pointing straight to the compressor clutch indiscriminately without checking the high and low side pressures. If you were mechanics, you will have misdagnoses left and right. Learn the scientific and logical approach. Dont be just parts replacers, be or try to be technicians

This might be the problem of my friend's Optra, a faulty pressure switch. However, I remember that the technician said that the pressures are normal BUT did not check the condition of the pressure switches.

Anyways, the pressure is usually the first thing that a technician will check first once you bring it to a shop. From there, he will start the troubleshooting process.

[dr. d]

This might be the problem of my friend's Optra, a faulty pressure switch. However, I remember that the technician said that the pressures are normal BUT did not check the condition of the pressure switches.

Anyways, the pressure is usually the first thing that a technician will check first once you bring it to a shop. From there, he will start the troubleshooting process.

yup.
that's what they did to mine. sa katapusan, it was just, as initially suspected, the spacer.
these guys are pretty good "at guessing".
i guess, that comes from seeing dozens of similar cases a month.

[shadow]

The two suggestions given was the cheapest and easiest things to check and it have done. If both are the not problems and magnetic clutch need replacement then there's no harm done in the compressor or his wallet.


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[jick.cejoco]

I still follow the sequence of
Knowledge
Diagnosis
Repair
In that particular sequence.
I avoid making mistakes that way.

This have been outlined by John Remling in his earlier textbooks that I used in my classes for more than two decades.

[Archerfish]

I still follow the sequence of
Knowledge
Diagnosis
Repair
In that particular sequence.
I avoid making mistakes that way.

This have been outlined by John Remling in his earlier textbooks that I used in my classes for more than two decades.

"An Engineering Approach"

Following this, you are able to point out the problem in the proper sequence without guessing.

I remember one chief engineer and we had a problem with the steering system. He randomly replaced magnetic contactors, time relays, etc., until he got the "correct" one.

The bad thing is, he didn't put back the "original" ones but instead put a label in the box as "used but still good".

I don't think I can trust the "label" should the time come that I need to replace parts.

[dr. d]

"An Engineering Approach"

Following this, you are able to point out the problem in the proper sequence without guessing.

I remember one chief engineer and we had a problem with the steering system. He randomly replaced magnetic contactors, time relays, etc., until he got the "correct" one.

The bad thing is, he didn't put back the "original" ones but instead put a label in the box as "used but still good".

I don't think I can trust the "label" should the time come that I need to replace parts.

yes. it seems weird.
why replace a perfectly good part?

[jick.cejoco]

"An Engineering Approach"

Following this, you are able to point out the problem in the proper sequence without guessing.

I remember one chief engineer and we had a problem with the steering system. He randomly replaced magnetic contactors, time relays, etc., until he got the "correct" one.

The bad thing is, he didn't put back the "original" ones but instead put a label in the box as "used but still good".

I don't think I can trust the "label" should the time come that I need to replace parts.

An expensive and time consuming guesswork.

[Woof]

I still follow the sequence of
Knowledge
Diagnosis
Repair
In that particular sequence.
I avoid making mistakes that way.

This have been outlined by John Remling in his earlier textbooks that I used in my classes for more than two decades.

You are right bro. I would think nobody here questions the use of sound methodology for troubleshooting. What we are merely offering here is your #1 - knowledge. Knowledge distilled from thousands of owners of this specific car model spanning more than a decade. A clueless mechanic, no matter how competent, will still waste a lot of time isolating and diagnosing but a specialist goes straight to test and check for known issues simply because it is folly to ignore the available body of evidence.

In fact, Technical Service Bulletins (TSB) of dealerships use this same approach wherein they first check to rule out if the customer complaint is caused by a known issue before proceeding to general troubleshooting.

Knowledge and experience lang naman ino-offer namin dito para hindi maloko at mapa gastos ng walang katuturan yung TS. At the end of the day, the diagnosis will still depend on the findings of the mechanic. And the eventual repair job is up to the TS whether he accepts the recommendations of the mechanic or not.