AC Issues. High Engine Load

[joe_mclaren]

Originally Posted by Jr Godzilla

could be a clogged orifice / expansion valve, if yes change it and would be good to flush for any dirt, metal which could screw up the compressor, vaccum refil gas. Also make sure to change the drier.

if its orifice its a tedious job to get under the dash for access to evaporator to get to orfice.

thanks Jr, ill make sure these things are taken care when im giving it for service

[joe_mclaren]

Originally Posted by Gangsta

Go for the AC service for your car and tuning. I'm not sure about Esteem's AC but in Accent if idle rpm goes below 600 then my AC Compressor will just trips off.

You need to checkout your thermostat too. It may cause such problems.

gangsta now since uve mentioned abt the RPM, i have a strange behavior there too
in fact when i start the car, its revs to 1.5K RPM and stays there throughout.
I restart the car and it comes back to 800~ RPM

Another behavior is that while driving when i press the clutch(de-clutch right?)

it revs from 800 -1.5K and back continously.
again on restart things are normal.

[achopraa]

Originally Posted by Gangsta

By the way, for which car you had been to Samara?

I was there for servcing of my i10.

[Gangsta]

Originally Posted by joe_mclaren

gangsta now since uve mentioned abt the RPM, i have a strange behavior there too
in fact when i start the car, its revs to 1.5K RPM and stays there throughout.
I restart the car and it comes back to 800~ RPM

Another behavior is that while driving when i press the clutch(de-clutch right?)

it revs from 800 -1.5K and back continously.
again on restart things are normal.

It happen always or whenyou start the car for the first time in the day. Because engine is cold wait for few min till the engine gets optimum heat. Make sure your throttlebody and injectors of the car is cleaned properly. Also, go for the high scan for the Oxygen Sensor in your car.

[joe_mclaren]

Originally Posted by Gangsta

It happen always or whenyou start the car for the first time in the day. Because engine is cold wait for few min till the engine gets optimum heat. Make sure your throttlebody and injectors of the car is cleaned properly. Also, go for the high scan for the Oxygen Sensor in your car.

High scan for Oxygen sensor???
More light on this please

[Gangsta]

Originally Posted by joe_mclaren

High scan for Oxygen sensor???
More light on this please

We don't have a scanning for Oxygen Sensor?

A Graphical Scanning will show if the oxygen sensor is working properly or not.

[joe_mclaren]

hi guys

updates on my AC

gave it for servicing.. he cleaned the AC system, refilled the gas and then i took it for a ride . the cooling is awesome now, chills in seconds
but after 2 days the same problem seems to persist, cooling stops randomly.

Now the problem he says seems to be with the thermistor valve and needs to be replaced. The reason being that coolant circulation is not happening, which in turn stops the AC.

Took it to my local workshop to remove the thermistor valve, but he says that a valve was bent, which stopped circulation and so he straightened that.. after 2 days back comes our problem. Took it back to the local workshop and he confirms the issue by saying that the AC sensor which cuts-off the cooling is problematic.

now showed it to another AC workshop, he checks and tells me that the AC system is still blocked because the compressor is working all the time but there is no cooling
He says that the whole system needs to be checked
I told him about the sensor, but he says that if the sensor was problematic, then the AC would work full time and would never cut-off.

Man am i confused

[Gangsta]

Originally Posted by joe_mclaren

hi guys

updates on my AC

gave it for servicing.. he cleaned the AC system, refilled the gas and then i took it for a ride . the cooling is awesome now, chills in seconds
but after 2 days the same problem seems to persist, cooling stops randomly.

Now the problem he says seems to be with the thermistor valve and needs to be replaced. The reason being that coolant circulation is not happening, which in turn stops the AC.

Took it to my local workshop to remove the thermistor valve, but he says that a valve was bent, which stopped circulation and so he straightened that.. after 2 days back comes our problem. Took it back to the local workshop and he confirms the issue by saying that the AC sensor which cuts-off the cooling is problematic.

now showed it to another AC workshop, he checks and tells me that the AC system is still blocked because the compressor is working all the time but there is no cooling
He says that the whole system needs to be checked
I told him about the sensor, but he says that if the sensor was problematic, then the AC would work full time and would never cut-off.

Man am i confused

see as far as the sensor is concerned. If oxygen sensor, then it will be a problem if car is in idle form. like your rpm going up and down.
Thermostat can be the problem... But beware i don't trust local guys now unless i know him personally.
By the way what's rpm of your car at idle and which car your own bro.?

[joe_mclaren]

an esteem vx2001 model MPFI
800 rpm when idle

[wolfinstein]

The Underpower problem should be rectified with adjustment to the flow of Gas in the Intake, In summers the Gas Expands leading to more inflow by volume,making the mix Rich.-coupled along with Dry Hot air from the Air Intake.

Simple adjustement to decrease the flow of gas would help,at the same time I suggest please get the Air filter and Spark plugs cleaned and adjusted.

Although a Lamda controller is self adjusting, One visit to retune the controller using the installer OBD would help.

Ideally My car is adjusted well enough to partake the weather differential.

[joe_mclaren]

Originally Posted by Gangsta

It happen always or whenyou start the car for the first time in the day. Because engine is cold wait for few min till the engine gets optimum heat. Make sure your throttlebody and injectors of the car is cleaned properly. Also, go for the high scan for the Oxygen Sensor in your car.

The continous revving and the high rev while starting the car is not observed after replacing my battery from Exide to Amaron 42B20R. Looks good now.
Back to my AC problem though..yet to be taken to the AC guy

[joe_mclaren]

A/C compressor busted completely.. the pistons are bend and the shaft has alll been scrapped..
So I got another compressor immediately, since they said the belt runs both A/C and power steering together...

Spending nearly 15K for compressor , drier and filter.

[Gangsta]

Originally Posted by joe_mclaren

A/C compressor busted completely.. the pistons are bend and the shaft has alll been scrapped..
So I got another compressor immediately, since they said the belt runs both A/C and power steering together...

Spending nearly 15K for compressor , drier and filter.

Oh damn sorry to hear that, havnt ya checked up your ac in previous days?