Are fuel injector clogging and fuel pump issues leading to stalling and jerking in Changan Kalam?

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Are fuel injector clogging and fuel pump issues leading to stalling and jerking in Changan Kalam?

Some users complain of misfires and poor throttle response. Could unfiltered fuel and lack of maintenance be the cause?

Sandeep asked on 18 Jun 2025 16:01:38 pm

1 Answer

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Car Mechanic Expert - on 18 Jun 2025 16:16:40 pm

Yes, especially in commercial vehicles using unfiltered fuel o r fuel mixed with impurities. The issues result in:

Poor throttle response

Misfires at high RPMs

Jerks during acceleration

Causes include:

Clogged fuel injectors

Weak o r noisy fuel pump

Dirty fuel filters not replaced on time

Pakistani petrol quality, especially from roadside stations, accelerates these issues if injector cleaning o r fuel system flush is skipped.