What does it mean when the warning light comes on?

1 Answers
DeDominic
07/25/25 9:12pm
The reasons for the warning light coming on include coolant temperature sensor failure, crankshaft sensor failure, oxygen sensor failure, spark plug failure, ignition coil failure, etc. When the engine warning light comes on, it can be divided into three situations: 1. The car cannot start, which may be due to fuel pump or ignition component failure, and you should call for assistance immediately; 2. The warning light is on, but there are no abnormalities in driving. This may just be a sensor failure, and you can continue driving temporarily, but it is best to drive at low to medium speeds; 3. The engine warning light comes on, the vehicle can still be driven, but there are symptoms such as severe shaking and lack of acceleration. In this case, you can only stop the car and call for rescue.
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