Is the transmission breather valve in Changan Karvaan getting clogged due to dust, causing pressure build-up and fluid leaks?

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Is the transmission breather valve in Changan Karvaan getting clogged due to dust, causing pressure build-up and fluid leaks?

High pressure may force fluid past seals. Are Pakistan’s unpaved and dusty roads affecting breather performance?

Lubaba asked on 26 Jun 2025 16:39:05 pm

1 Answer

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Car Mechanic Expert - on 26 Jun 2025 16:45:30 pm

Yes:

The breather valve allows pressure release inside the gearbox.

On dusty rural roads, dust clogs the breather, leading to:

Internal pressure build-up

Leaks through seals and gaskets

It’s a small but crucial component often overlooked in service.

⛔ Conclusion: Pakistan’s climate demands frequent inspection and cleaning of the breather valve.