What makes Noisy when engine is cold?
I bought a used kia rio 1.4 2011 model, i drove it 3
months it was fine but now im experiencing a very
bad idling when the engine is cold usually every
morning, it's very noisy and no power when
accelerate. What might be the the problem?
Dirty idle air control valve and cold start injector. Maybe the car just needs an extensive tune-up.