If a gasoline engine turns over freely but...

Question 1 of 2707066636eec28f7522a1c51c40c

If a gasoline engine turns over freely but will not start, the cause is generally __________.

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Question 1 of 27070

Q

If a gasoline engine turns over freely but will not start, the cause is generally __________.

🔍 Key Concepts

• Gasoline engine basic requirements for starting: correct fuel-air mixture, compression, and ignition (spark) • Difference between mechanical problems (like valve springs or heavy load) vs ignition problems • What "turns over freely" tells you about the starter and mechanical resistance

💭 Think About

• Ask yourself: If the engine is cranking normally, what key systems does that tell you are already working? • Which of these choices would most directly prevent the fuel from igniting, even though the engine is spinning? • Which options would more likely affect engine performance after it starts, rather than preventing it from starting at all?

✅ Before You Answer

• Verify which system is responsible for providing spark in a gasoline engine. • Consider whether low lube oil level would physically stop an engine from cranking, or just damage it if it continued to run. • Think about whether too heavy a load or weak valve springs would keep an engine that spins freely from firing and starting.