Ford F-100 Spark Plug Replacement at your home or office.

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Spark Plug Replacement Estimate for Ford F-100

Ford F-100 Spark Plug Replacement costs $75 on average. Following is a breakdown of the labor and parts estimates.

YourMechanic Price
$72 to $89
Labor: $70 -$80
Parts: $2 -$9
Average Dealer price
$98 to 110
Average Shop price
$86 to 94
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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
1973 Ford F-100L6-4.9LService typeSpark Plug ReplacementEstimate$77.50Shop/Dealer Price$93.90 - $110.41
1979 Ford F-100V8-5.0LService typeSpark Plug ReplacementEstimate$78.00Shop/Dealer Price$94.59 - $111.53
1977 Ford F-100V8-5.0LService typeSpark Plug ReplacementEstimate$78.00Shop/Dealer Price$94.54 - $111.45
1975 Ford F-100V8-5.0LService typeSpark Plug ReplacementEstimate$76.82Shop/Dealer Price$93.09 - $109.13
1972 Ford F-100L6-4.9LService typeSpark Plug ReplacementEstimate$74.72Shop/Dealer Price$90.43 - $104.87
1983 Ford F-100V6-3.8LService typeSpark Plug ReplacementEstimate$86.76Shop/Dealer Price$105.47 - $128.92
1981 Ford F-100V8-4.2LService typeSpark Plug ReplacementEstimate$87.06Shop/Dealer Price$105.93 - $129.68
1978 Ford F-100L6-4.9LService typeSpark Plug ReplacementEstimate$75.96Shop/Dealer Price$92.04 - $107.44
Show example Ford F-100 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 Ford mechanics

Real customer reviews from Ford owners like you.

Jeff

29 years of experience
390 reviews
Jeff
29 years of experience
Thank you very much for a flawless automotive repair at the convenience of my home. Jeff arrived on time with motivation, and professionalism. He started working immediately. The appointment was booked for seven hours; however, he completed the maintenance ahead of schedule. Jeff is very truthful and hard worker. He could have taken advantage of the situation, instead he resisted the temptation of easy money and chose to do the right thing. His professionalism and integrity are seldom unheard of from the auto repair and service industry. Again, thank you for the expertise and for a job well done.
2004 FORD ESCAPE - SPARK PLUGS - ROSEVILLE, CALIFORNIA

Choeun

11 years of experience
146 reviews
Choeun
11 years of experience
Great service received and very prompt. Friendly and recommended everything that would be needed in near future. All was well and vehicle is running smoothly. I highly recommend Choeun for your mechanic needs. Thanks!!!
2006 FORD EXPLORER - SPARK PLUGS - MODESTO, CALIFORNIA

Quentin

18 years of experience
115 reviews
Quentin
18 years of experience
Great mechanic! knew exactly what The problem was
2003 FORD EXPEDITION - SPARK PLUGS - HOUSTON, TEXAS

Yahshif

6 years of experience
108 reviews
Yahshif
6 years of experience
Goes above and beyond! Super friendly and knowledgeable. Would highly recommend! Hisbwork was amazing!
2011 FORD FIESTA - SPARK PLUGS - LONG BEACH, CALIFORNIA
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
1973 Ford F-100L6-4.9LService typeSpark Plug ReplacementEstimate$77.50Shop/Dealer Price$93.90 - $110.41
1979 Ford F-100V8-5.0LService typeSpark Plug ReplacementEstimate$78.00Shop/Dealer Price$94.59 - $111.53
1977 Ford F-100V8-5.0LService typeSpark Plug ReplacementEstimate$78.00Shop/Dealer Price$94.54 - $111.45
1975 Ford F-100V8-5.0LService typeSpark Plug ReplacementEstimate$76.82Shop/Dealer Price$93.09 - $109.13
1972 Ford F-100L6-4.9LService typeSpark Plug ReplacementEstimate$74.72Shop/Dealer Price$90.43 - $104.87
1983 Ford F-100V6-3.8LService typeSpark Plug ReplacementEstimate$86.76Shop/Dealer Price$105.47 - $128.92
1981 Ford F-100V8-4.2LService typeSpark Plug ReplacementEstimate$87.06Shop/Dealer Price$105.93 - $129.68
1978 Ford F-100L6-4.9LService typeSpark Plug ReplacementEstimate$75.96Shop/Dealer Price$92.04 - $107.44
Show example Ford F-100 Spark Plug Replacement prices

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