Buick Century Spark Plug Replacement at your home or office.

Our certified mechanics come to you・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing
Logo-yelp
CUSTOMERS LOVE US ON YELP
4.5 out of 5 (550 reviews)
Icon-warranty_badge-02
SERVICES BACKED BY OUR
12-Month, 12,000-Mile Warranty
How does YourMechanic work?    
Icon-quote-hiw
Get a quote

Choose from 600+ repair, maintenance, and diagnostic services, backed by our 12-month, 12,000-mile warranty.

Icon-calendar-hiw
Book an appointment

Tell us when to meet you at your home or office. We’ll send one of our vetted, top-rated mechanics.

Icon-fixed-hiw
Get your car fixed

Continue with your day while our mechanic fixes your car onsite. You pay only after the job is done.

Spark Plug Replacement Estimate for Buick Century

Buick Century Spark Plug Replacement costs $85 on average. Following is a breakdown of the labor and parts estimates.

YourMechanic Price
$73 to $121
Labor: $70 -$112
Parts: $3 -$9
Average Dealer price
$99 to 148
Average Shop price
$87 to 128
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
CarServiceYourMechanic PriceShop/Dealer Price
1994 Buick CenturyV6-3.1LService typeSpark Plug ReplacementYourMechanic Price$85.56Shop/Dealer Price$103.97 - $126.53
2001 Buick CenturyV6-3.1LService typeSpark Plug ReplacementYourMechanic Price$114.76Shop/Dealer Price$139.37 - $167.26
1981 Buick CenturyV8-5.0LService typeSpark Plug ReplacementYourMechanic Price$76.82Shop/Dealer Price$93.07 - $109.09
1983 Buick CenturyV6-3.0LService typeSpark Plug ReplacementYourMechanic Price$104.82Shop/Dealer Price$126.92 - $147.32
1984 Buick CenturyV6-4.3L DieselService typeSpark Plug ReplacementYourMechanic Price$86.76Shop/Dealer Price$105.48 - $128.95
1979 Buick CenturyV8-5.0LService typeSpark Plug ReplacementYourMechanic Price$76.82Shop/Dealer Price$93.04 - $109.04
1980 Buick CenturyV6-3.8LService typeSpark Plug ReplacementYourMechanic Price$104.82Shop/Dealer Price$126.97 - $147.43
1997 Buick CenturyV6-3.1LService typeSpark Plug ReplacementYourMechanic Price$114.40Shop/Dealer Price$138.92 - $166.53
Show example Buick Century 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.

GET A QUOTE FOR YOUR CAR
Backed by 12-month, 12,000-mile guarantee

Meet some of our expert Buick mechanics

Real customer reviews from Buick owners like you.

659 reviews
Ben
37 years of experience
Professional, quick, and provides outstanding service.
1998 BUICK CENTURY - OIL CHANGE
369 reviews
Patrick
28 years of experience
Patrick was the mechanic that came out to change my spark plugs and wires and I could not have gotten a better mechanic. It was so nice to have someone who actually took the time to make sure everything was back in the correct place and was running right before he left. I was totally happy with his service.
2000 BUICK REGAL - SPARK PLUG REPLACEMENT
252 reviews
Terry
22 years of experience
Terry showed up on time. He was friendly and professional. Inspected and determined repair that was needed. Unfortunately parts house didn't have part in stock(the car is a '91), had to be ordered so could not complete the repair.
1991 BUICK CENTURY - CAR STAYS RUNNING WHEN I SHUT THE KEY OFF INSPECTION
202 reviews
Danny
7 years of experience
Danny did another great job. He's also a very nice guy, and always goes a step above and beyond. Thank you so much!
1998 BUICK CENTURY - ALTERNATOR / SERPENTINE BELT REPLACEMENT
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
CarServiceYourMechanic PriceShop/Dealer Price
1994 Buick CenturyV6-3.1LService typeSpark Plug ReplacementYourMechanic Price$85.56Shop/Dealer Price$103.97 - $126.53
2001 Buick CenturyV6-3.1LService typeSpark Plug ReplacementYourMechanic Price$114.76Shop/Dealer Price$139.37 - $167.26
1981 Buick CenturyV8-5.0LService typeSpark Plug ReplacementYourMechanic Price$76.82Shop/Dealer Price$93.07 - $109.09
1983 Buick CenturyV6-3.0LService typeSpark Plug ReplacementYourMechanic Price$104.82Shop/Dealer Price$126.92 - $147.32
1984 Buick CenturyV6-4.3L DieselService typeSpark Plug ReplacementYourMechanic Price$86.76Shop/Dealer Price$105.48 - $128.95
1979 Buick CenturyV8-5.0LService typeSpark Plug ReplacementYourMechanic Price$76.82Shop/Dealer Price$93.04 - $109.04
1980 Buick CenturyV6-3.8LService typeSpark Plug ReplacementYourMechanic Price$104.82Shop/Dealer Price$126.97 - $147.43
1997 Buick CenturyV6-3.1LService typeSpark Plug ReplacementYourMechanic Price$114.40Shop/Dealer Price$138.92 - $166.53
Show example Buick Century Spark Plug Replacement prices

How can we help?

Our service team is available 7 days a week, Monday - Friday from 6 AM to 5 PM PST, Saturday - Sunday 7 AM - 4 PM PST.

1-800-701-6230 · hi@yourmechanic.com