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What is causing purge control valve issues in Changan Karvaan models across Pakistan?

What is causing purge control valve issues in Changan Karvaan models across Pakistan?

Many Karvaan users report engine check lights and rough idling, which mechanics often trace back to a faulty purge control valve. Is this a result of local fuel quality, poor valve materials, o r dust entering the EVAP system?
Sandeep asked on 06 Aug 2025 14:05:32 pm
2 Answers
20 views |
Car Mechanic Expert - on 06 Aug 2025 14:09:25 pm
The main causes of purge valve problems in Karvaan are:

Poor fuel quality with contaminants o r additives

Low-grade valve materials prone to wear

Dust and moisture entering the EVAP Evaporative Emission Control system

Improper sealing o r clogged EVAP lines due to lack of servicing

Pakistani road conditions, especially dusty environments and unfiltered fuel, accelerate valve deterioration.
Car Mechanic Expert - on 06 Aug 2025 14:09:27 pm
The main causes of purge valve problems in Karvaan are:

Poor fuel quality with contaminants o r additives

Low-grade valve materials prone to wear

Dust and moisture entering the EVAP Evaporative Emission Control system

Improper sealing o r clogged EVAP lines due to lack of servicing

Pakistani road conditions, especially dusty environments and unfiltered fuel, accelerate valve deterioration.
 

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