What are the reasons for the difficult cold start of Chery QQ308?

1 Answers
OMason
07/29/25 11:56am
The reasons for the difficult cold start of Chery QQ308 are: 1. Low gasoline pressure and poor atomization; 2. Excessive spark plug electrode gap; 3. Decreased ignition energy of the ignition coil; 4. Short circuit or open circuit in the cylinder wires; 5. Excessive carbon deposits inside the engine; 6. Poor valve sealing. Taking the 2012 Chery QQ308 as an example, it belongs to the microcar category, with body dimensions of: length 3550mm, width 1495mm, height 1485mm, a wheelbase of 2340mm, a fuel tank capacity of 35 liters, and a curb weight of 890kg. The 2012 Chery QQ308 features a MacPherson strut front suspension and a longitudinal trailing arm non-independent rear suspension. It is equipped with a 0.8L naturally aspirated engine, producing a maximum horsepower of 58PS, a maximum power of 43kW, and a maximum torque of 78Nm, paired with a 5-speed manual transmission.
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