Jeep free light cold car is difficult to start.

Ignition difficulty caused by carbon deposit: carbon deposit in throttle, air intake and oil circuit (carbon deposit in fuel nozzle) will all make it difficult to start the car. Cleaning the throttle, air intake and fuel nozzle can solve the problem.

Weak spark plug energy: if the spark plug is not replaced after the maintenance period, the ignition energy of the spark plug will be reduced, which will lead to fire in serious cases. Moreover, at present, the engines of many models are mostly in-cylinder direct injection, so the requirements for spark plugs are higher. It is recommended to replace the spark plug regularly.

Insufficient fuel pressure: the filter screen of the fuel pump is easily blocked by impurities after long-term use, resulting in poor oil supply in the oil circuit. The fuel pump is in the car fuel tank, and the filter screen can be disassembled and cleaned.