Corolla indus AC compressor problem

[pwuser154229395553]

I took my car for AC service and found out from the AC mechanic that the stock compressor heats up the engine and can even damage the engine if used for a year.
any information ?

[archon2001]

This post was flagged by the community and is temporarily hidden.

[dani_kk]

Which city you're from and that's really strange logic

[capsat]

I took my car for AC service and found out from the AC mechanic that the stock compressor heats up the engine and can even damage the engine if used for a year.

bad head pressure of compressor causes engine heat up, the diagnostic took over 72 hours for a perfect pajero and traced only when ac gauges were connected to compressor vehicle was drive on road. at heat up vehicle stopped and the compressor was CULPRIT with head pressure over 400 psi.

[capsat]

Which city you're from and that's really strange logic

exactly please wait for @homeboy to share his ordeal

[dani_kk]

You can check that by revving above 2000 rpm on standing car to see this.

[pwuser154229395553]

peshawar

[pwuser154229395553]

not only it heats up the engine but also make the car sluggish

[dani_kk]

Sluggish and this shows you've a blocked ac system sir. Blockage in ac system basically puts load on compressor and compressor puts load on engine making it heated or sluggish.

[homeboy]

can you tell me how did he check the heating of compressor.

your AC tech is correct, I have personally experienced this twice. But one should be 100% confident that air conditioning is the culprit.

[homeboy]

i will post a detailed experience once I have tested my vehicle. For now here it goes:

firstly please thoroughly check and eliminate all the possibilities of heat up. there are numerous things you can check:

1) Radiator
2) Fan
3) TStat
4) Waterpump
5) Headgaskit ---- please don't jump the gun as every road side mechanic would give his verdict that head is the culprit. the proper diagnosis is to check for air bubbles in the radiator, pressure in radiator, and the best is Co2 test. if you tech does not know what this test is please change the tech.

if all above is clear. then move to aircon. Air con can also heat up the vehicle, the probably causes are:

1) blockage in the pipes
2) evaporating valve malfunction
3) solenoid malfunction
all of the above will make the compressor work extra which would lead to compressor failure which would translate into extra load on crank.
always check the High and Low pressure of Aircon while testing - low should be around 50 and high should not increase 350 @capsat please correct where requried
4) if all above are ok - the compressor may be faulty - in order to check pour some water on the compressor which the pressure (head pressure of AC) is high and vehicle is over heating. if the water boils immediately (like putting water on a hot stove/ pan). then compressor needs to be changed.

please in last case do check if the compressor's coating is intact if not please get every thing flushed with CTC .

best of luck in fixing your vehicle.

cheers