Cadillac DeVille Spark Plug Replacement at your home or office.

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Spark Plug Replacement Estimate for Cadillac DeVille

Cadillac DeVille Spark Plug Replacement costs $96 on average. Following is a breakdown of the labor and parts estimates.

YourMechanic Price
$73 to $177
Labor: $70 -$168
Parts: $3 -$9
Average Dealer price
$99 to 213
Average Shop price
$87 to 186
Get an instant quote for your car
Our mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing
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CarServiceYourMechanic PriceShop/Dealer Price
1997 Cadillac DeVilleV8-4.6LService typeSpark Plug ReplacementYourMechanic Price$163.76Shop/Dealer Price$221.31 - $273.90
1975 Cadillac DeVilleV8-8.2LService typeSpark Plug ReplacementYourMechanic Price$90.82Shop/Dealer Price$123.16 - $151.25
1984 Cadillac DeVilleV8-5.7L DieselService typeSpark Plug ReplacementYourMechanic Price$86.76Shop/Dealer Price$116.40 - $148.06
1973 Cadillac DeVilleV8-7.7LService typeSpark Plug ReplacementYourMechanic Price$76.30Shop/Dealer Price$103.36 - $127.20
1986 Cadillac DeVilleV8-4.1LService typeSpark Plug ReplacementYourMechanic Price$76.80Shop/Dealer Price$103.93 - $128.10
2001 Cadillac DeVilleV8-4.6LService typeSpark Plug ReplacementYourMechanic Price$164.68Shop/Dealer Price$222.44 - $275.71
1981 Cadillac DeVilleV8-5.7L DieselService typeSpark Plug ReplacementYourMechanic Price$86.76Shop/Dealer Price$116.51 - $148.25
1971 Cadillac DeVilleV8-7.7LService typeSpark Plug ReplacementYourMechanic Price$76.30Shop/Dealer Price$103.40 - $127.27
Show example Cadillac DeVille 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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Meet some of our expert Cadillac mechanics

Real customer reviews from Cadillac owners like you.

455 reviews
Jeffrey
23 years of experience
I will be calling him back
2003 CADILLAC DEVILLE - CAR IS OVERHEATING INSPECTION
399 reviews
Steven
10 years of experience
Scheduled an appointment for spark plugs and wire replacement and blown away again by this companies service! Just the best mechanics to deal with out there. I had Steven Laramee come out for the service which he did quickly and efficiently. I also told him my problem about my oil pan drain plug being stripped and I couldn't get it off. Not only did he get it off, he did my oil change for me with the supplies I already had! He did this as a favor and its stuff like this that goes a long way when it comes to customer service. That is amazing considering the way other mechanic shops would have treated this! Just the best in town for auto repair and they come to you at the office or home! Thanks so much Steven!
2004 CADILLAC DEVILLE - SPARK PLUG REPLACEMENT
252 reviews
Terry
22 years of experience
I have already suggested this service to a friend. Prices are insanely low compared to other shops! Keep the prices low and you will have a customer for life!
2002 CADILLAC DEVILLE - SPARK PLUG REPLACEMENT
234 reviews
Tyrone
7 years of experience
Tyrone was great and able to repair my fuel pressure regulator without removing half the parts I was told had to be removed. Big plus for me because I'm very particular about my cars.YES I highly recommend him to anyone
1991 CADILLAC DEVILLE - FUEL PRESSURE REGULATOR 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
1997 Cadillac DeVilleV8-4.6LService typeSpark Plug ReplacementYourMechanic Price$163.76Shop/Dealer Price$221.31 - $273.90
1975 Cadillac DeVilleV8-8.2LService typeSpark Plug ReplacementYourMechanic Price$90.82Shop/Dealer Price$123.16 - $151.25
1984 Cadillac DeVilleV8-5.7L DieselService typeSpark Plug ReplacementYourMechanic Price$86.76Shop/Dealer Price$116.40 - $148.06
1973 Cadillac DeVilleV8-7.7LService typeSpark Plug ReplacementYourMechanic Price$76.30Shop/Dealer Price$103.36 - $127.20
1986 Cadillac DeVilleV8-4.1LService typeSpark Plug ReplacementYourMechanic Price$76.80Shop/Dealer Price$103.93 - $128.10
2001 Cadillac DeVilleV8-4.6LService typeSpark Plug ReplacementYourMechanic Price$164.68Shop/Dealer Price$222.44 - $275.71
1981 Cadillac DeVilleV8-5.7L DieselService typeSpark Plug ReplacementYourMechanic Price$86.76Shop/Dealer Price$116.51 - $148.25
1971 Cadillac DeVilleV8-7.7LService typeSpark Plug ReplacementYourMechanic Price$76.30Shop/Dealer Price$103.40 - $127.27
Show example Cadillac DeVille Spark Plug Replacement prices

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