Hi There,
Recently I pay a visit to repair shop because of constant hissing noise when AC is on.
They vacuumed the line, and run ten minutes leak test, no leak has been found. Then they refilled the Freon 600 gram according to the manual book.
When driving back home, I can feel the AC is getting cooler, but the hissing noise has increased.
So returned to the repair shop, they suspect need more freon, so they manually added freon until the hissing disappear.
So I went back, and yes the hissing become quite minimal. But I measure the AC become less cool using thermometer. And the more important issue is my car engine become more heavy and slugged. When I turned the AC off, engine become smooth and light.
I lived in area with ambient temperature of around 90 F, so always need an AC.
May I have some advice?
Recently I pay a visit to repair shop because of constant hissing noise when AC is on.
They vacuumed the line, and run ten minutes leak test, no leak has been found. Then they refilled the Freon 600 gram according to the manual book.
When driving back home, I can feel the AC is getting cooler, but the hissing noise has increased.
So returned to the repair shop, they suspect need more freon, so they manually added freon until the hissing disappear.
So I went back, and yes the hissing become quite minimal. But I measure the AC become less cool using thermometer. And the more important issue is my car engine become more heavy and slugged. When I turned the AC off, engine become smooth and light.
I lived in area with ambient temperature of around 90 F, so always need an AC.
May I have some advice?
Jul 16, 2018 at 1:57 AM
