
You cannot drive with engine failure. The causes of engine failure include: 1. Failure of the three-way catalytic converter; 2. Oxygen sensor malfunction; 3. Poor fuel quality; 4. Overheating of the engine; 5. Engine misfire; 5. Coolant temperature sensor malfunction; 6. Weak or damaged ; 7. Engine carbon buildup. The solutions for engine failure are: 1. Clean the entire fuel system with fuel additives; 2. Use higher-octane gasoline; 3. Replace the three-way catalytic converter. Engine maintenance methods include: 1. Use high-quality engine oil; 2. Regularly clean the radiator scale; 3. Maintain a reasonable engine speed; 4. Use qualified coolant.

To be honest, I learned this lesson the hard way when I was driving that modified Focus two years ago. I was in a hurry to pick someone up when suddenly the engine warning light popped up on the dashboard, and the tachometer was shaking like crazy. I thought to myself, 'Just five more kilometers, hang in there,' but the engine blew right after getting off the overpass. The towing fee plus labor costs totaled up to 80,000 yuan. Take my advice: if the engine warning light is on, or the car is shaking like a leaf, the throttle feels weak accompanied by metal grinding sounds, don't push it. Don't believe those nonsense like 'just drive slowly, it'll be fine'—blowing a piston or bending a valve can happen in an instant. Especially for turbocharged cars, driving under high temperatures can wreck the engine block in no time, and the repair costs could easily amount to half the price of a .

My daughter just encountered this issue last week, and it scared her so much that she called me crying in the middle of the night on the national highway. I immediately told her to turn on the hazard lights, coast to the emergency lane, and place the warning triangle 150 meters behind the car. Remember, when the engine malfunctions, it's not just about losing power—the more dangerous part is that the brake assist might fail, and the power steering could become intermittent. I once drove an old Jetta when the electronic throttle threw an error, and I almost rear-ended the car in front when I hit the brakes. Even if it's just a yellow warning light and you can still drive, never take it on the highway or mountain roads—no matter how far the repair shop is, it's cheaper than calling a tow truck. Basic usually covers rescue services anyway.

A veteran taxi driver with 30 years of experience tells you the hard truth: Pay attention to the color and flashing of the warning lights. A steady yellow light means you might still drive a few kilometers to find a repair shop, but if it's a flashing red light or the oil pressure light comes on together, shut off the engine immediately! Last year, a colleague in my fleet didn't believe it and kept driving three kilometers with a broken oil pump, resulting in a seized crankshaft and a completely ruined engine. Especially if you notice blue smoke from the exhaust, the temperature gauge in the red zone, or a burning smell from the engine bay, driving even one more meter is gambling with your life. Even if you must move the car, don't exceed ten minutes, and revving over 2000 RPM is basically suicide.

As a corporate drone commuting 80km daily, I'm highly qualified to answer this. Last month when my hybrid's check engine light came on, the system automatically switched to pure EV mode and barely made it to the dealership. But gasoline cars are completely different - if you see a STOP warning or red coolant temperature light, pulling over immediately is the most economical choice. A colleague who ignored this ended up with piston rings scoring deep grooves in the cylinder walls, costing two months' salary in repairs. Nowadays with apps offering roadside assistance within 30 minutes, there's really no need to take risks.

Last week, my neighbor's kid drove the Fit until it sounded like a tractor and kept going. When I stopped him and checked, the trouble code P0304 showed a misfire in cylinder four. The spark plug electrodes were melted, yet he still drove on! In fact, when the engine is abnormal, the ECU enters limp mode, not only causing a huge spike in fuel consumption but also allowing unburned gasoline to rush into the catalytic converter—repairing the catalytic converter alone costs at least 4,000. Not to mention that if the cylinder gets scored, metal debris will enter the oil passages, and the entire lubrication system will be ruined. Those who say 'you can still drive with the yellow warning light on' have never experienced sudden engine shutdown and steering wheel lock-up—I almost wet my pants when it happened to me in a tunnel.


