Chevrolet C20 Spark Plug Replacement at your home or office.

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Spark Plug Replacement Estimate for Chevrolet C20

Chevrolet C20 Spark Plug Replacement costs $75 on average. Following is a breakdown of the labor and parts estimates.

YourMechanic Price
$73 to $98
Labor: $70 -$80
Parts: $3 -$18
Average Dealer price
$99 to 129
Average Shop price
$87 to 106
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Our mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing
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CarServiceEstimateShop/Dealer Price
1976 Chevrolet C20V8-5.7LService typeSpark Plug ReplacementEstimate$76.82Shop/Dealer Price$93.05 - $109.05
1985 Chevrolet C20V8-5.7LService typeSpark Plug ReplacementEstimate$75.96Shop/Dealer Price$92.04 - $107.45
1986 Chevrolet C20V8-5.0LService typeSpark Plug ReplacementEstimate$76.82Shop/Dealer Price$93.07 - $109.09
1982 Chevrolet C20V8-5.7LService typeSpark Plug ReplacementEstimate$76.82Shop/Dealer Price$93.09 - $109.13
1986 Chevrolet C20V6-4.3LService typeSpark Plug ReplacementEstimate$75.96Shop/Dealer Price$91.98 - $107.35
1985 Chevrolet C20V8-7.4LService typeSpark Plug ReplacementEstimate$75.96Shop/Dealer Price$91.97 - $107.32
1983 Chevrolet C20L6-4.1LService typeSpark Plug ReplacementEstimate$76.82Shop/Dealer Price$93.13 - $109.20
1981 Chevrolet C20L6-4.1LService typeSpark Plug ReplacementEstimate$76.82Shop/Dealer Price$93.11 - $109.16
Show example Chevrolet C20 Spark Plug Replacement prices

Spark Plug Replacement Service & Cost

What are the Spark Plugs all about?

The spark plugs are an important part of the ignition system. When you turn the ignition key (car's key) on, it causes the ignition coil to generate the spark which ignites the air-fuel mixture in the engine cylinders to start the engine. The number of spark plugs in the car is the same as the number of cylinders, although some vehicle manufacturers will use two spark plugs per cylinder.

Over time, the spark plugs wear out and require replacement. When the spark plugs wear out, it is harder for it the air-fuel mixture to ignite, resulting in engine misfires. If one of the spark plugs has failed, the car will still start and run, but it will run poorly. On some vehicles, spark plug replacement may be labor intensive and involve removal of the intake plenum.

Spark plugs-MATROX-1

Keep in mind:

  • When the spark plugs are replaced, it is a good idea to inspect the ignition cables as well.
  • Spark plugs come in numerous ratings, and the correct rating for your vehicle should always be used.

How it's done:

  • Scan the car for codes.
  • Clean all surface areas around the spark plugs.
  • Remove spark plugs.
  • Inspect threads in engine head (where plugs are installed).
  • Perform compression test if needed.
  • Inspect ignition wires.
  • Apply anti-seize to the threads of the spark plugs.
  • Install new spark plugs.
  • If needed replace any gaskets removed.

Our recommendation:

During routine maintenance and checkups, your ignition system should always be inspected. Any time that a component of the ignition system is replaced, it’s a good idea to consider replacing the spark plugs as well. If you don’t preemptively change your spark plugs your engine will let you know by misfiring or running poorly, so schedule an inspection as soon as you notice that your engine is not performing properly.

What common symptoms indicate you may need to replace the Spark Plugs?

  • Check Engine light is on.
  • Engine misfires.
  • Poor fuel economy.
  • Vibration coming from the engine.

How important is this service?

Spark plugs are responsible for igniting the fuel that your engine uses to run. When you turn your key, a small voltage of power is sent to the ignition coil, where it is transformed into high voltage currency. This high voltage currency is sent through the ignition cables to the spark plugs. The spark plugs use the power to create a spark, which ignites the fuel, and allows the engine to function.

When the spark plugs malfunction, this spark won’t be created, and the fuel will not be ignited as it should. Your vehicle has many spark plugs, so depending on how many fail, your engine may either run poorly, or not run at all. Continuing to drive a vehicle with malfunctioning spark plugs can also cause damage to the catalytic converter.

Fast and easy Spark Plug Replacement service at your home or office.

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Number of Reviews

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Rating Summary
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107

Meet some of our expert Chevrolet mechanics

Real customer reviews from Chevrolet owners like you.

Rodney

32 years of experience
296 reviews
Rodney
32 years of experience
was able to come in a hour earlier then scheduled, very professional and courteous and was able to finish ahead a schedule. also recommend other services he noticed I needed to take care of. would definitely recommend to others.
2004 CHEVROLET IMPALA - SPARK PLUGS - STOCKTON, CALIFORNIA

Robert

28 years of experience
160 reviews
Robert
28 years of experience
Robert did an outstanding job thank you.
1994 CHEVROLET C1500 - SPARK PLUGS - SAN JOSE, CALIFORNIA

Chris

7 years of experience
148 reviews
Chris
7 years of experience
Fantastic
2003 CHEVROLET MONTE CARLO - SPARK PLUGS - SCOTTSDALE, ARIZONA

Joseph

14 years of experience
108 reviews
Joseph
14 years of experience
Joseph arrived right on time, introduced himself and got right to work. Replaced the plugs and checked the vehicle over. He took time to go over things with me. Vehicle runs great, I'm very satisfied. Thank Joseph for a great job and a great experience.
2005 CHEVROLET CLASSIC - SPARK PLUGS - NOTTINGHAM, MARYLAND
Get an instant quote for your car
Our mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing
Get a quote
CarServiceEstimateShop/Dealer Price
1976 Chevrolet C20V8-5.7LService typeSpark Plug ReplacementEstimate$76.82Shop/Dealer Price$93.05 - $109.05
1985 Chevrolet C20V8-5.7LService typeSpark Plug ReplacementEstimate$75.96Shop/Dealer Price$92.04 - $107.45
1986 Chevrolet C20V8-5.0LService typeSpark Plug ReplacementEstimate$76.82Shop/Dealer Price$93.07 - $109.09
1982 Chevrolet C20V8-5.7LService typeSpark Plug ReplacementEstimate$76.82Shop/Dealer Price$93.09 - $109.13
1986 Chevrolet C20V6-4.3LService typeSpark Plug ReplacementEstimate$75.96Shop/Dealer Price$91.98 - $107.35
1985 Chevrolet C20V8-7.4LService typeSpark Plug ReplacementEstimate$75.96Shop/Dealer Price$91.97 - $107.32
1983 Chevrolet C20L6-4.1LService typeSpark Plug ReplacementEstimate$76.82Shop/Dealer Price$93.13 - $109.20
1981 Chevrolet C20L6-4.1LService typeSpark Plug ReplacementEstimate$76.82Shop/Dealer Price$93.11 - $109.16
Show example Chevrolet C20 Spark Plug Replacement prices

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