The mechanic diagnosed the engine problem as a faulty sparkplug
He replaced the old sparkplug with a new one to improve fuel efficiency
The car wouldn't start because of a worn-out sparkplug
Check the sparkplugs regularly to ensure optimal engine performance
The racing car's engine requires high-performance sparkplugs
Hey, I'm working on my car and it just won't start. Any ideas?
Oh man, that's frustrating! Have you checked the basics, like the battery and, well, the **sparkplug**?
Okay, so the battery's good. How confident are you in your ability to replace the sparkplug yourself, and what makes you think it's the culprit?
The mechanic replaced the faulty sparkplug in the engine
The mechanic replaced the component that ignites the fuel-air mixture
A new ignition device was installed to get the car running
The faulty part responsible for starting combustion was changed
He swapped out the device that creates the initial spark in the cylinder