Car AC automatically off when speedup 80kmph or above

[hatharasinghe]

I have second hand Premio car and recently i noticed when i speedup 80 or more ( it happened at Highway) AC automatically turned off but blower works and once low down the speed to 60 or below its again working. Then showed it to AC repair place they showed one sensor has carbon deposited and its not working so replaced it but the problem is still there. Could you pls advise me what to check or replace , Hope your kind advise.

Have a nice day

 

Roshan

[kush]

  On 7/23/2020 at 2:34 AM, hatharasinghe said:

I have second hand Premio car and recently i noticed when i speedup 80 or more ( it happened at Highway) AC automatically turned off but blower works and once low down the speed to 60 or below its again working. Then showed it to AC repair place they showed one sensor has carbon deposited and its not working so replaced it but the problem is still there. Could you pls advise me what to check or replace , Hope your kind advise.

Have a nice day

 

Roshan

Expand  

Could be a cooling issue, keep an eye on temperature gauge. When engine temperature goes up a/c is automatically shut down to decrease the load on the engine.

Why don't you take the vehicle to the agent and get it checked it might be worth rather than going and replacing sensors trying to sort out the issue with out proper identification of the issue.

[hrm]

Could be the infamous AC issue in Allion/Premios. Was the sensor replaced is the compressor solenoid valve? If this doesn't solve the problem the only solution is compressor replacement. 

Does the AC work normally in city driving speeds? Either way get it checked with a good AC mechanic. 

[hatharasinghe]

  On 7/23/2020 at 3:12 AM, kush said:

Could be a cooling issue, keep an eye on temperature gauge. When engine temperature goes up a/c is automatically shut down to decrease the load on the engine.

Why don't you take the vehicle to the agent and get it checked it might be worth rather than going and replacing sensors trying to sort out the issue with out proper identification of the issue.

Expand  

Thanks for your kind advise Toyota Lanka quote 190K for the compressor only with fixing and all it around 220K

[hatharasinghe]

  On 7/23/2020 at 3:29 AM, hrm said:

Could be the infamous AC issue in Allion/Premios. Was the sensor replaced is the compressor solenoid valve? If this doesn't solve the problem the only solution is compressor replacement. 

Does the AC work normally in city driving speeds? Either way get it checked with a good AC mechanic. 

Expand  

Thanks for the kind advise I check on it.

[hrm]

  On 7/23/2020 at 6:31 AM, hatharasinghe said:

Thanks for your kind advise Toyota Lanka quote 190K for the compressor only with fixing and all it around 220K

Expand  

That's an insane amount but at least it would be a genuine fix. Note that even if you replace it with a brand new genuine compressor still it's not a permanent thing to solve. Due to the nature of how these units are designed and operate you might be able to run for another 50-60K KMs with it. Also you can find brand new compressors for 50-75K from outside shops but I'm not sure whether they are actual made in Japan Denso units. Could be Taiwan/Thailand or somewhere similar. Reconditioned ones can be found around 20-30K. Also don't go for 121 compressors as many AC guys might suggest.

[hatharasinghe]

  On 7/23/2020 at 7:57 AM, hrm said:

That's an insane amount but at least it would be a genuine fix. Note that even if you replace it with a brand new genuine compressor still it's not a permanent thing to solve. Due to the nature of how these units are designed and operate you might be able to run for another 50-60K KMs with it. Also you can find brand new compressors for 50-75K from outside shops but I'm not sure whether they are actual made in Japan Denso units. Could be Taiwan/Thailand or somewhere similar. Reconditioned ones can be found around 20-30K. Also don't go for 121 compressors as many AC guys might suggest.

Expand  

 

  On 7/23/2020 at 7:57 AM, hrm said:

That's an insane amount but at least it would be a genuine fix. Note that even if you replace it with a brand new genuine compressor still it's not a permanent thing to solve. Due to the nature of how these units are designed and operate you might be able to run for another 50-60K KMs with it. Also you can find brand new compressors for 50-75K from outside shops but I'm not sure whether they are actual made in Japan Denso units. Could be Taiwan/Thailand or somewhere similar. Reconditioned ones can be found around 20-30K. Also don't go for 121 compressors as many AC guys might suggest.

Expand  

 

  On 7/23/2020 at 7:57 AM, hrm said:

That's an insane amount but at least it would be a genuine fix. Note that even if you replace it with a brand new genuine compressor still it's not a permanent thing to solve. Due to the nature of how these units are designed and operate you might be able to run for another 50-60K KMs with it. Also you can find brand new compressors for 50-75K from outside shops but I'm not sure whether they are actual made in Japan Denso units. Could be Taiwan/Thailand or somewhere similar. Reconditioned ones can be found around 20-30K. Also don't go for 121 compressors as many AC guys might suggest.

Expand  

Thanks for the information I check it on other places.

Have a nice weekend