What are the reasons for difficulty in starting a cold engine?
2 Answers
Difficulty in starting a cold engine is caused by: 1. Insufficient battery power; 2. Restricted gasoline flow; 3. Poor working condition of the ignition system; 4. Valve gumming; 5. Frozen exhaust pipe; 6. Poor atomization of the air-fuel mixture inside the engine; 7. Carbon deposits on the valves. Solutions for difficulty in starting in cold weather: 1. Push-start the vehicle; 2. Use jumper cables, ensuring positive connects to positive and negative to negative; 3. Recharge the battery promptly; 4. Replace with suitable engine oil; 5. Replace spark plugs in time; 6. Perform periodic cleaning of the electronic throttle; 7. Add antifreeze; 8. Park the vehicle indoors or in an underground parking lot.
I often drive older cars, and cold starting difficulties are a persistent issue, especially in winter. The main reason may be an underperforming battery; low temperatures can reduce battery capacity, and older batteries struggle even more with the high power demand of the starter. Dirty spark plugs or excessively large gaps causing ignition failure are also common factors. The fuel pump may experience reduced pressure in cold conditions, and a clogged fuel filter only makes things worse. High-viscosity engine oil can make the engine harder to turn over, significantly increasing resistance. Sometimes, the Electronic Control Unit (ECU) may have programming errors, leading to inaccurate control. I recommend regular checks on these points: for example, battery life is typically 2-3 years, spark plugs should be replaced every 20,000 kilometers, and using low-viscosity oil in winter can greatly reduce those awkward moments of struggling to start. Regular maintenance is key—don’t wait until problems arise to take action.
