Are engine vibrations and rough idling common in Changan Karvaan after 20,000–30,000 km in Pakistani road conditions?

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Are engine vibrations and rough idling common in Changan Karvaan after 20,000–30,000 km in Pakistani road conditions?

Many owners mention increased engine noise o r uneven RPMs. Could low-quality fuel, poor tuning, o r engine mount issues be contributing?

Sandeep asked on 26 Jun 2025 11:53:21 am

1 Answer

9 views |

Car Mechanic Expert - on 26 Jun 2025 11:57:37 am

Yes. Owners report:

Uneven RPMs

Vibrations when AC is on

Increased engine harshness

Likely causes:

Worn-out engine mounts common in high heat o r rough roads

Dirty throttle body o r IAC valve

Clogged fuel injectors due to unfiltered low-quality petrol

Spark plug degradation after 20K km

➡️ Proper periodic tuning, mount inspection, and fuel system cleaning are required to fix these.