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Old 01-05-2018, 05:09 PM   #1
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Drives: Toyota Yaris
Join Date: Jan 2018
Location: Saudi Arabia
Posts: 1
AC stop cooling at highway speed (> 100 kmph)

Hello Members,

I have toyota yaris 2012. Issue is with AC, it stops cooling at highway speeds or more than 100KMPH. Within city AC is working great.

Here are few tests i have done so far:

1. AC system is charged properly (checked with 2 different shops)
2. On highway when it stops cooling, I turn off AC and shift to Neutral gear and turn on AC again and it starts cooling immediately but stops after 2-3 minutes.
3. Car has clutch less compressor so clutch gap is out of question.

Recently changed evaporator core.

I have been told that compressor is bad but want to make sure if it is really compressor or something else causing it.

I would really appreciate your help and suggestions.
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Old 01-06-2018, 05:10 AM   #2
ncp13's Avatar
Drives: 01 Yaris TS
Join Date: Jan 2017
Location: Athens Greece
Posts: 92
Chech the pressures of the ac system while reving the engine to the higway rpm range.
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air conditioning, yaris 2012

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