Reasons for Gasoline Engine Stalling When Overheated?
2 Answers
Gasoline engine stalling when overheated is likely caused by excessively small valve clearance. Below is a partial introduction about gasoline octane ratings: Definition: Gasoline octane rating: It represents the ratio of the actual gasoline's anti-knock performance to that of standard gasoline. The higher the octane rating, the stronger the anti-knock performance. Standard gasoline is composed of isooctane and n-heptane. Types: Standard gasoline consists of isooctane and n-heptane. Isooctane has good anti-knock properties, with its octane rating set at 100; n-heptane has poor anti-knock properties and is prone to knocking in gasoline engines, with its octane rating set at 0. If the gasoline has an octane rating of 90, it means that this gasoline has the same anti-knock performance as standard gasoline containing 90% isooctane and 10% n-heptane.
Last time my car overheated and shut down, it turned out there was an issue with the cooling system, like the radiator fan not spinning or the coolant level being too low, causing the engine to overheat and stall. It could also be a problem with the ignition system, where the spark plugs fail to perform under high temperatures and can't ignite the fuel. Even the fuel pump might get too hot to deliver fuel properly. I'd suggest avoiding long drives and pulling over to check the fan and fluid levels first. If you can't fix it yourself, head to a repair shop immediately to avoid breaking down on the road. Remember, regular maintenance can prevent this—I've been through this hassle myself, and luckily, no accident happened.
