Inb4, dunnoanythingaboutcar

my car's aircond has been abit upset lately. i noticed that the car aircond will only give cool air when i am driving the car (as in the car is moving) but if the car is idle, the aircond will no more give cool air out but warm air instead.

i noticed too when i on the A/C (aircond) system and tekan minyak, there will be a strange noise that come along. the harder i tekan minyak, the louder the engine noise will be (that is normal) and also the strange noise.

i asked few people around (through phone, coz no time face to face) and they say is the aircond compressor / aircond motor problem. are the a/c compressor and a/c motor even the same thing?

and how much would it cost me if i want to change it for recond together with service included? i had a quote for RM400++, anything i should take note of? especially on the compressor/motor as i will be taking a recond one.

Hmm,yu need to check yr gas pressure ,see got any leak or nt. some compressor make noise, Maybe your oil already decrease because of the leak/ Or Bearing spoil. What car? How many years u never service your air-cond d?

its a kenari. last time service i think within 1 year time. changed all the 3 "belts" + service. how i check the pressure? need to workshop rite?

and your oil is what oil? engine oil i just changed 2 weeks ago. bearing?? where de bearing? lol.

This post has been edited by EternalC: Jul 26 2012, 08:42 AM

Compressor oil/Air-cond oil. I mean service Cooling-coil/Evaporator inside the car 1. yu need to go shop they can check for you. Bearing ermm i dnt know how to say,but still compressor part.

i see. so basically i still need to bring it to workshop to figure it out eh? hahaha.
any idea on the recond compresor price? and also when they say a/c compressor and a/c motor, is it the same thing?

ya same thing. Condensor=Rm300 / Evaporator rm300 / Compressor recon rm3++ Lowest. If Pipe Rm50-100 / If compressor Leak,Change O-ring rm80-100. And yr compressor never spoil, Dnt giv them scam ==.. Just take go and check pressure. If Condensor or Cooling coil leak cant repair. Evaporator &cooling coil is the same thing. And Ask the price b4 yu Fix!

then what could be the problem then? haha. you mean is it could be the condensor / cooling coil that is leaking (which is part of compressor) and that two need to buy new?

and in wat way is a compressor really spoil?

Things to check for old car a/c system and goto car aircond shop, not workshop.

1. AC Gas - If low, top up. Usually can last up to 2 years. If 3 months lose gas already, ask them to check if got leakage at pipes or joints. they have gas detector to do that if u go to proper car AC shop. Gas can also leak through the gasket of older compressor.

2. Low gas cutoff sensor for compressor - Some idiot usually advise to bypass this sensor when it's faulty. What will happen is when your gas is low the compressor will keep on running spoiling the compressor. Happens to my old car last time, change compressor 3 times because of this.

3. Thermostat - rarely spoilt, but if spoilt will cause your condenser to over cool and makes water in the condenser freeze to ice. Air flow will be blocked and no air will come out of your blower until it melt again.

4. Compressor - The heart of the AC, if older than 3-5 years usually have issue like gasket leaking or wear and tear on the piston. Will die really fast if the low gas cutoff switch have been bypassed.

5. Condenser - Place where the air become cool and hot air is absorbed. Rarely need any attention because a normal cleaning shoul dbe sufficient if it's too dirty. Only need to change when there's leaking but only on really2 old car.

Always try 2-3 different shop to troubleshoot before you repair, checking is always free and it's good to have a 2nd opinion especially if you're not familiar with the shops. Ask the problems and price for repairing it. Compare it with other place.

thanks for info brah!

about the compressor part, what is the condition/damage that i will need it to be replaced?

leaking or the piston have problem due to wear and tear. Last time for my old car i change the compressor and tell the shop to fix all the leaking. My aircond gas didnt need a refill for 2-3 years. If you want to test how severe is the leak, just go to any ac shop and tell them to check the gas pressure and refill the gas and then take note how long it will take for it to get to current condition.

If you need to refill the gas every month then it's better to do a full repair, but if it only need to refill like once every 6 month then just refill it until the compressor totally break down. Any gas loss in less than 2-3 months is considered bad since the price to top up the gas have increased too nowadays.

noted. many thanks for the info!

There are oil stain left on the place it leaks.. Depends on what type of compressor, sometimes it will leak at shaft shield.

Condenserr and Evaporator

Condenser to reduce/discharge the heat of the compressed liquid

Evap= To absorb surrounding air/heat. Changed liquid to Wap/Moist

yu need to add oil in the compressor so it will not spoil/Jem

lowgas sensor & thermostat is the same thing.. If spoil it will make yr Valve frost and yr liquid stuck in it, will make yr compressor keep compress it and damage yr piston.

Check the gas pressure is free.others yu have to pay. Evaporator normal got 1 year warrant. compressor -3month. Liquid filter also need to change.

woa very informative posts

TS seems you are having a problem at idle, there are a few posibilities like already mentioned earlier.

i will look at condenser seals, radiator fan, ac fan. i dont know about a kenari but most cars have a cutout when the idle compressor discharge pressure is too high. when this happens AC will not function.

yu are right.
It always happen on House air-cond too.

i think this is what is happening. coz i keep hearing psst psst sound when my car is idle. and i can see my rpm playing along. for example, when idle, let say i tekan minyak so that the rpm is at 2000rpm, when the psst sound come, it will go down to maybe around 1000rpm++.

any idea on this one? so i shud just off my a/c for the time being until i bring it to check? gosh the heat..

The psst sound came from btm of yr desk box?Left hand seat bottom. normal every valve sound like this because the liquid pass through the valve needle hole become moist.

i think so. it repeat every 2 to 3 seconds. and if put idle and the air become warm, when i start moving again it will not necessarily will be cool again. sometime it just stay warm all the way.

lets say its the problem as what u mention above, what is the thing that got broken?

Yu wont get the answer till yu check at shop. Maybe Magnet coil nt strong so cant pull the pulley. Yu got tell the foremen want yr car save oil/petrol...maybe he set the timing low.so the compressor wont work until yu drive..

i dont think thats the case.. the last time i bring it to aircond service was like almost 1 year ago... but i did went for engine oil change + service around 2 weeks ago... dont think they did anything to the a/c system?

. Check yr gas pressure 1st, if 30-40+psi normal. depends on yr luck Leak or anything~ yu wont get the answer till yu checked.