VIDEO: 5 Signs It's Time To Replace Your Spark Plugs

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VIDEO: 5 Signs It’s Time To Replace Your Spark Plugs

Do you know when it's time? This video is sponsored by Autolite.

Tomorrow's Technician Staff
By Tomorrow's Technician Staff
Tomorrow’s Tech (TT) delivers technical information for servicing today’s vehicles to more than 40,000 automotive students enrolled in more than 1,100 technical and vocational schools across the country.
Published:

A faulty spark plug can cause the following:

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A. Poor fuel milage

B. Poor Acceleration 

C. A Check Engine Light

D. All of the above

The correct answer is D and here’s why.

  • Intro: Preventative maintenance is key to the over-all health of your vehicle,
  • -Including spark plug replacement. 30k-100k intervals. 
  • -Engine misfire; CEL on (flashing). Poor engine performance, engine stumble, poor fuel economy, discuss how a misfire is detected. Codes p0301-306, etc. P0300
  • -Rough Idle. Vibration felt, stumbling, sound rough and not smooth. 
  • -Hard starting. Take longer to turn over and start. Ignition system working harder and may have trouble igniting the air/fuel mix.
  • -Poor acceleration. Poor throttle response, Sluggish acceleration. Struggling to pick up speed.
  • -Excessive fuel consumption. Incomplete combustion. More emissions leaving tail pipe. 

This video is sponsored by Autolite.

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