11th Gen Toyota Altis Aircon Problem

[_Cathy_]

I don't know what to do with my 2014 Altis anymore. Just today the AC stopped working. There was no air coming out of the vents at all. This happened several times before but the AC would work after turning the aircon on and off for 5 mins.
My car has been in the case THREE times since 2014

Casa Visit 1: Replace compressor
Casa Visit 2: Refill Freon (their grand excuse on why the AC was not cold enough was because they did not refill the freon properly when the replaced the compressor)
Casa Visit 3: July 2015: Replace compressor (AGAIN) and condenser

I felt trouble with the AC less than 6 months ata from the time I bought the car. I told the casa that its not as cold as it is supposed to be. I have driven that car almost every day since I bought it and my setting was ALWAYS at 24c and that felt really cold for me even on summer. THEN suddenly something changed. I would use setting 22C and it still was not enough to keep the cabin cold. Of course at LOW/18c e lalamig yung AC, BUT I kept on telling casa, check it at freaking 28C and that is where you will see the problem. A normal Altis has very cold AC and I know mine is not. I also reported that there is a sound in the cabin from the AC that they never resolved in the three times that I brought the car there. It stayed for 2 WEEKS on the third visit and now it got worse! I have no AC at all! What the hell should I do now? I do not even know if they really replaced my compressor! I told them before to check the blower because that its what happened to my 10th gen pero WALA

Then on Friday, going home from work I noticed something very different with the ride quality of my car. It was so rough! I felt like I was riding a very old car. If anything, the ride quality of the Altis was superb compared with my 10th gen. So I know that something is wrong because I felt every curve and bump on the road. Today I passed the skway to test it and the skyway felt like I was passing numerous humps na ewan! I checked the tire pressure and it was at 32 front and 30 rear (recommended for the Altis). This car has only 9000 + kms and never driven on rough roads or long distance! The farthest was ONCE in Manaoag for its blessing. City driving on weekdays and sometimes highway on weekends (Laguna which is less than 100 kms away) I do not pass any rough or malubak roads to and from work. So how the F*CK can something go wrong with the suspension or shocks or whatever. I rarely even have passengers and I do not weigh 400 lbs to damage the suspension! I am so desperate! I want to sell this pero talo ako sa depreciation sobra. And my parents will definitely not cover the difference if I bought a new car. I really have to deal with this car for 4 more yrs or so. And I am afraid what will happen pa when it is out off warranty

[12vdc]

Trade it with a nissan, that should end your ac troubles.

[_Cathy_]

Trading or selling the car is NOT AN OPTION as mentioned in my first post.

[ninjababez]

isang casa lang ba humawak Cathy?

[_Cathy_]

isang casa lang ba humawak Cathy?

Yes. And it's far from where I live!

[oj88]

The type of problem your car is having requires systematic diagnostics. Barring any mechanical problems like faulty fans/blowers, leaks, compressor issues and such, the minimum tools of the trade would usually include Toyota's OBDII scanner (TIS Techstream), and a standard room thermometer.

My guess at this point is that it may have something to do with the A/C control module and its sensor(s). Simply put, once a preset temp is entered by the driver, the control unit will do its best to achieve that temp using its own temp sensor. Once the desired temp is achieved, it sends out a signal to disengage the compressor. If the A/C control module is acting up or its sensor has become out-of-spec, or probably even blocked, it can give off the wrong feedback to the controller. Bad info in, bad info out.

Using Toyota's OBDII scanner, the technician may be able to get the temperature that is actually being detected by the A/C temp sensor through the CAN bus (Controller Area Network - The network that makes it possible for different car components like door locks, SRS, A/C, ECM/PCM, etc. to be able talk to each other). The room thermometer can be used to validate the cabin temp. If they're off by several degrees from what the TIS is saying, even after the A/C has been running for several minutes with the car under the shade, I'd swap out that controller and/or sensor for a known good one for testing.

The car's A/C temp sensor is usually behind a grilled opening on the dashboard near the knee area. On the Altis, that would be the small opening besides the Engine Start button. If this is blocked or if the sensor is defective/out-of-spec, or dislodged, it may not read the cabin temp correctly.

I hope you get this sorted out eventually.

[ninjababez]

try nalang sa iba. baka tang* tang* service dyan

[99moves]

isang casa lang ba ang pinagdalhan mo maam? have you tried other casas?

you could bring it to reputable shops other than the casa just for diagnosis. para lang malaman ang sira talaga. para pag balik mo sa casa may idea ka kung ano sira. bad trip kasi pag alam mo nang may sira kaso yung mga unggoy sa casa panay hula lang ginagawa.

and mark the parts na alam mong kailangan palitan. sulatan mo ng pentel yung compressor para alam mo kung pinalitan nga.

[_Cathy_]

isang casa lang ba ang pinagdalhan mo maam? have you tried other casas?

you could bring it to reputable shops other than the casa just for diagnosis. para lang malaman ang sira talaga. para pag balik mo sa casa may idea ka kung ano sira. bad trip kasi pag alam mo nang may sira kaso yung mga unggoy sa casa panay hula lang ginagawa.

and mark the parts na alam mong kailangan palitan. sulatan mo ng pentel yung compressor para alam mo kung pinalitan nga.

Yes. I have been going to the same casa for over 5 years already to the same service advisor. Kaya nagdadalawang isip ako magpunta sa ibang casa. I don't make appointments anymore and parts are replaced immediately. When my 10th gen had a problem after PMS, they even picked up my car at home. But then he got promoted already kaya siguro iba na talaga pag hindi na siya yung nakatutok. But this time I will try another casa na.

[glenn manikis]

Baka naman nagagandahan Lang sayo service advisor mo kaya ka.. Pinapabalik balik... He he