Spark Plug Replacement: DIY vs Mechanic Cost
Should you DIY this repair or pay a mechanic? Here's the honest breakdown.
DIY Total
$20-$80
Parts only • Your time: 1-3 hrs
Mechanic Total
$100-$300
Parts + 1.5 hrs labor @ $120/hr
Your Savings
$20-$280
by doing it yourself
DIY Difficulty
Beginner-Friendly
Beginner-Friendly • 1-3 hours for most vehicles
Tools You'll Need
Spark plug socketRatchet and extensionTorque wrenchGap gauge
When NOT to DIY
Coil-on-plug setups on V8 with rear plugs, spark plug seized in aluminum head
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