Toyota Sienna Spark Plug Replacement at your home or office.

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$119.31 - $537.24

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Spark Plug Replacement Estimate for Toyota Sienna

Toyota Sienna Spark Plug Replacement costs $391 on average.

Service

What are 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

While replacing spark plugs remember

  • 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.

Steps for replacing spark plugs

  • 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.

When to replace spark plugs

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 it to replace the spark plugs?

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.

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Meet some of our expert Toyota mechanics

Real customer reviews from Toyota owners like you.

Excellent Rating


YourMechanic Toyota Sienna Spark Plugs Replacement Service

Average Rating

5/5

Number of Reviews

15

Rating Summary
15
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15
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Joel

18 years of experience
501 reviews
Joel
18 years of experience
Joel is great. Arrived right on time, did an excellent job (tune-up), talked to me about a couple of other issues, showed me exactly where and what the issues were, and we set-up next steps to take care of them. Being that the car has over 380k miles, the issues were to be expected, but he found them when the chain car repair place missed them on some previous work. Great personality, easy to work with. I couldn't be more satisfied with the experience.
2000 TOYOTA SIENNA - SPARK PLUGS - NEPTUNE BEACH, FLORIDA

Jamahl

17 years of experience
653 reviews
Jamahl
17 years of experience
Jamal does a very good job whenever we book him to work on our van. Would definitely use his services again!
2005 TOYOTA SIENNA - SPARK PLUG REPLACEMENT - LAKE MARY, FLORIDA

William

22 years of experience
35 reviews
William
22 years of experience
William came on time and fix valve cover gasket. And he also advise me to replace the spark plugs because the same process to open the engine cover and so on. He also find couple crack hoses and replace them. Great Job. Thank you.
2002 TOYOTA SIENNA - SPARK PLUGS - STOCKTON, CALIFORNIA

Duane

22 years of experience
293 reviews
Duane
22 years of experience
Excellent service. Very professional yet personable. Explained that it might not be the issue I was told it was and insisted on doing a diagnostic first and discovered that it was just fouled spark plugs and bad fuel, saved me a couple hundred dollars in unnecessary repairs.
2000 TOYOTA SIENNA - SPARK PLUGS - SPRING VALLEY, CALIFORNIA

Excellent Rating


YourMechanic Toyota Sienna Spark Plugs Replacement Service

Average Rating

5/5

Number of Reviews

15

Rating Summary
15
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15
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Red-stars EXCELLENT RATING ON
Number of Toyota Sienna Spark Plugs Replacement services completed
165+
services done by our mechanics
TOTAL NUMBER OF EXPERT Toyota MECHANICS
1000+
experts on our platform

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