2009 Questions for all other cars Air Conditioner cycling

MOJAVA

MEMBER
2009 ALL OTHER MAKES ALL OTHER MODELS
4 CYL
2WD
AUTOMATIC
1,200 MILES

I just bought a NEW foreign car as I live overseas.

From the day I bought it until now. No matter what setting (low=warmer or HIGH=COLD) or what time of day if it's 3 am or 12 noon, the air conditioner cycles on every 5 to 10 seconds.

I have taken this to the dealer several times & taken to the service center as well, both tell me this is NORMAL for the air con pump/clutch to turn on & off this frequently.

My car is a 2009 Perodua Myvi from Malaysia & this is also where I live.

The engine is a 1.3 litre 4 cyl EFI.

I have tried explaining to the dealer/service center that this is not working as it should.

Please help.

STRESSED IN MALAYSIA

3 Replies

MHPAUTOS

MECHANIC
31,937 POSTS

Hi there, I do not have any information on this car, but what I would be doing is going to an A/C service center and having the system pressures checked this is normally the first thing that is checked when chasing an A/C problem, start here.

Mark (mhpautos)

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Tuesday, December 15th, 2009 AT 9:45 PM

MOJAVA

MEMBER
2 POSTS

Mark,

I had the hi/lo checked 3 x by 2 shops both say the same thing. This is typical.

My concern is that if the pump/clutch (cycles) too frequently ie; every 5-10 seconds that this will
wear them out faster.

It's like there is little to no variable (degree wise) for
the pump. So if it's suppose to be 25c and it hits 25.5c
then the pump kicks in.

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Wednesday, December 16th, 2009 AT 5:40 PM

MHPAUTOS

MECHANIC
31,937 POSTS

I would be thinking that the TX (thermal expansion valve) may be faulty, this regulated the release of the refrigerant into the evaporator, if it is sensing a higher them it may be causing this problem, ask your A/C shop to check this out.

See the link for the operation of the A/C system
Mark

https://www.2carpros.com/how_does_it_work/air_conditioner.htm

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Wednesday, December 16th, 2009 AT 6:22 PM