When one cylinder has a lower compression...

Question 1 / 270705eccefa1bacbc34ba4d476aa

Question 1 of 270705eccefa1bacbc34ba4d476aa

When one cylinder has a lower compression pressure and higher exhaust gas temperature than any of the other engine cylinders, which of the conditions listed will be indicated?

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Question 1 of 27070

When one cylinder has a lower compression pressure and higher exhaust gas temperature than any of the other engine cylinders, which of the conditions listed will be indicated?

🔍 Key Concepts

• Relationship between compression pressure and sealing of valves/piston rings • How combustion timing or quality affects exhaust gas temperature • Differences between air supply problems and exhaust flow problems on cylinder temperature and compression

💭 Think About

• If compression pressure is lower in one cylinder, what kinds of leaks or defects would cause that, and where would they be located? • Which condition would most likely cause hotter-than-normal exhaust gas from that cylinder, and why would incomplete sealing affect temperature? • Compare which answer choices would change the air going into the cylinder versus the gases going out of the cylinder, and how each would affect compression readings.

✅ Before You Answer

• Be sure the option you choose can both reduce compression pressure and raise exhaust gas temperature at the same time. • Verify whether the condition would occur in a single cylinder or would normally affect all cylinders equally. • Confirm that your choice directly involves a leak path or restriction that could cause hot gases to pass where they should not, increasing that cylinder’s exhaust temperature.

Question 1 of 27070

When one cylinder has a lower compression pressure and higher exhaust gas temperature than any of the other engine cylinders, which of the conditions listed will be indicated?

Advanced ignition

Clogged air intake

Leaky exhaust valve

High exhaust pressure

Question 1 / 270705eccefa1bacbc34ba4d476aa

Question 1 of 270705eccefa1bacbc34ba4d476aa

When one cylinder has a lower compression pressure and higher exhaust gas temperature than any of the other engine cylinders, which of the conditions listed will be indicated?

Back

Question 1 of 27070

When one cylinder has a lower compression pressure and higher exhaust gas temperature than any of the other engine cylinders, which of the conditions listed will be indicated?