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Aircon: Shivers when coming to stop; not cold intermittenly

Wildfaye29

By Wildfaye29,
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Wildfaye29

Wildfaye29

Turbocharged

Hi, have the above prob on a 2yr old colt plus. 40k mileage.

 

Initial dianogsis is the aircon clutch (magnet plate) spoiled. Was quoted $470 by a aircon shop in woodlands to replace a new one.

 

Currently working intermittently. Gotta on/off again if its not cutting in/out properly.

 

Has anyone come across this before? And if the quoted price is reasonable? If not, any other places where i can get it done at a better price?

 

Any advise appreciated!

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Yeobh

Yeobh

4th Gear

Don't jump into conclusion to change the air con magnetic clutch. First check yr battery and alternator for performance. Disconnect wire to magnetic clutch , increase engine speed and check voltage input to clutch - this will confirm whether there is a voltage drop or the relay is not working properly.

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Wildfaye29

Wildfaye29

Turbocharged
  • Author

Don't jump into conclusion to change the air con magnetic clutch. First check yr battery and alternator for performance. Disconnect wire to magnetic clutch , increase engine speed and check voltage input to clutch - this will confirm whether there is a voltage drop or the relay is not working properly.

 

OIC, can you recommend me a place to check?

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Munch003

Munch003

2nd Gear
(edited)

I recently just got my aircon compressor overhauled in JB.

The compressor bearings were noisy and there is a metallic pinging sound

whenever the aircon is first turned on.

 

Was advised to overhaul it. They opened it up, serviced it with new seals and bearings.

Cost me RM240.

 

After servicing the aircon is cooler and quieter. Overall satisfied with the

money spent.

 

Looking at the bill, they charged me RM35 for a relay.

I am curious what is the function of a relay

in a car's airconditioning system?

 

Thanks.

Edited by Munch003
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Yongwd

Yongwd

1st Gear

There was once my 18months Honda is having exactly the same problem like yours. I went to my parallel importer workshop to diagnose with "faulty a/c compressor clutch" I was not convinced that a 100% japan made compressor would fail with only 15,000km mileage. I thanked them and walked away when I was quoted $350 to replace it.

 

I went along with my own diagnostic and observe the problem when the compressor clutches in / out during operation. I also connect a amp meter and voltmeter to the compressor measuring the current and voltage drawing from the fuse box and realized the problem happen when the a/c compressor relay is hot and therefore not delivering sufficient current, ie faulty contact

 

Temporary swapped the relay from another car to test, problem went away immediately. $12 to get a new relay the next day vs the $350 quotation.

 

My so called 100% build Honda has electrical parts Made in Vietnam, Made in China and Made in Thailand [speechless]

 

 

 

Hi, have the above prob on a 2yr old colt plus. 40k mileage.

 

Initial dianogsis is the aircon clutch (magnet plate) spoiled. Was quoted $470 by a aircon shop in woodlands to replace a new one.

 

Currently working intermittently. Gotta on/off again if its not cutting in/out properly.

 

Has anyone come across this before? And if the quoted price is reasonable? If not, any other places where i can get it done at a better price?

 

Any advise appreciated!

 

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Redstorm

Redstorm

1st Gear
(edited)

Hi, have the above prob on a 2yr old colt plus. 40k mileage.

 

Initial dianogsis is the aircon clutch (magnet plate) spoiled. Was quoted $470 by a aircon shop in woodlands to replace a new one.

 

Currently working intermittently. Gotta on/off again if its not cutting in/out properly.

 

Has anyone come across this before? And if the quoted price is reasonable? If not, any other places where i can get it done at a better price?

 

Any advise appreciated!

 

I have a somewhat similar problem with yours long time ago when I was driving another car. The air-con somtime was cold and most of the time was not cold at all, just blowing hot air. Went to a few so-called air-con specialists and everyone of them claimed that the compressor was gone and recommended me to replace it. I almost gave up and change it until a friend recommended me to see an air-con specialist specialising in Korean car. Was driving a Korean car at that time. One look at the air-con and he told me that the compressor was still ok and he immediately pin-pointed the point to a relay switch. The replacement cost me only S$8!!!!!. It was working fine after that. Unfortunately, the shop is long gone and I dunno where it has moved to.

Edited by Redstorm
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Wildfaye29

Wildfaye29

Turbocharged
  • Author

hmm...i had the same prob on an ex car too...replaced the relay for $40...

 

relay cost like $10?! where can i buy 1 myself to diy? is it a car specific item? where is it usually located?

 

i dun mind spending like $10 to buy a relay and diy, if it doesnt work than get e clutch fixed...

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Yeobh

Yeobh

4th Gear

Disconnect the wires ( with push -on fitting) going into the clutch. Make sure you get the live and ground wire correct, then use a jumper wire to feed 12v directly from the battery. If the clutch close and hold in position , locate the relay ,trace via the clutch wires and replace with the similar unit.

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Wildfaye29

Wildfaye29

Turbocharged
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I dun hav e equipment to do the testing.

 

Is e relay located in the fuse box?

 

Where can i buy a new relay?

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Yeobh

Yeobh

4th Gear

Since you are not familiar with auto electric and do not have even the basic tester & tools, I strongly suggest you leave the diagnostic work and replacement to qualified auto electrician. Trying to save money you may end up with more problems that may be cause by your mishandling.

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Wildfaye29

Wildfaye29

Turbocharged
  • Author

Since you are not familiar with auto electric and do not have even the basic tester & tools, I strongly suggest you leave the diagnostic work and replacement to qualified auto electrician. Trying to save money you may end up with more problems that may be cause by your mishandling.

 

:)

 

dats the reason i asked this in post #3: -

 

QUOTE (Yeobh @ May 19 2009, 09:37 AM)

Don't jump into conclusion to change the air con magnetic clutch. First check yr battery and alternator for performance. Disconnect wire to magnetic clutch , increase engine speed and check voltage input to clutch - this will confirm whether there is a voltage drop or the relay is not working properly.

 

 

OIC, can you recommend me a place to check?

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Mr_b20

Mr_b20

6th Gear

I have a somewhat similar problem with yours long time ago when I was driving another car. The air-con somtime was cold and most of the time was not cold at all, just blowing hot air. Went to a few so-called air-con specialists and everyone of them claimed that the compressor was gone and recommended me to replace it. I almost gave up and change it until a friend recommended me to see an air-con specialist specialising in Korean car. Was driving a Korean car at that time. One look at the air-con and he told me that the compressor was still ok and he immediately pin-pointed the point to a relay switch. The replacement cost me only S$8!!!!!. It was working fine after that. Unfortunately, the shop is long gone and I dunno where it has moved to.

 

good n honest shop that charge u $8 to fix the problem [thumbsup] no wonder so fast close shop ! lol ! [gossip]

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Wildfaye29

Wildfaye29

Turbocharged
  • Author

had e a/c fixed @ e ubi shop mentioned in post #5.

 

replaced e magnetic clutch, re-gassed and had the relay replaced @ $110 + GST.

 

happy w the job done, the clutch engage sound when a/c switch is turn on/off has also gone away, prob a worn clutch.

 

the supervisor oso mentioned that i have a C-fresh a/c filter installed recently, asked me to avoid such aft mkt filters as they restrict air flow and will oso cause other probs in future. asked me to stick to stock. any other views on this?

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Zoom99

Zoom99

Neutral Newbie

Check the compressor.

If excess oil accumulate on it, then you can kiss goodbye to compressor.

 

 

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Tas0577

Tas0577

1st Gear

Guys, I was told by one of the air-con specialist that it is best to put the air-con temperature setting at the maximum coldest as when you put near to the Hot zone, it will mix with the hot air from the heater core and it will produce some funny smell at certain times. Is it true?

 

How many of you really put to Maximum Coldest?

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