Lexus RX300 Spark Plug Replacement at your home or office.

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$415.00 - $442.00

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Spark Plug Replacement Estimate for Lexus RX300

Lexus RX300 Spark Plug Replacement costs $427 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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Real customer reviews from Lexus owners like you.

Excellent Rating


YourMechanic Lexus RX300 Spark Plugs Replacement Service

Average Rating

4.3/5

Number of Reviews

10

Rating Summary
9
0
0
0
1
9
0
0
0
1

Maxwell

15 years of experience
375 reviews
Maxwell
15 years of experience
A great mechanic and person, Maxwell was able to help me out with other issues that he had recommended after first working on my Lexus RX300 and I could trust no one else with such a task. He is helpful, kind and is glad to let me know what he has done or what my car actually needs to be in great working condition. It was a 7+ hour task and he had a great attitude even after all that time working on my car and honestly saving it. I have never felt so trusting of a mechanic and am glad to have met such a good person, I would most definitely recommend him to anyone looking for someone who will get the job done right!
2000 LEXUS RX300 - SPARK PLUGS - HOUSTON, TEXAS

Brandon

17 years of experience
489 reviews
Brandon
17 years of experience
Incredible guy. Efficient, on-time, calm and double checks everything. I really appreciate him also making himself available on New Years Eve. He also ensured I drive my car with him for a test drive after. 100% would recommend him and use him again and again. Thanks Brandon!
2002 LEXUS RX300 - SPARK PLUGS - WINTER SPRINGS, FLORIDA

Honorio

16 years of experience
627 reviews
Honorio
16 years of experience
Will ask for Honorio next time I have a problem. I had to work when the appointment was scheduled gave him the spar and he did an amazing job.
2000 LEXUS RX300 - SPARK PLUGS - SUNNYVALE, CALIFORNIA

Alex

13 years of experience
382 reviews
Alex
13 years of experience
This was a repair that was covered under warranty by YourMechanic. I appreciate the customer service you guys offer, and I'll happily share my success using YourMechanic.
2003 LEXUS RX300 - SPARK PLUGS - FRISCO, TEXAS

Excellent Rating


YourMechanic Lexus RX300 Spark Plugs Replacement Service

Average Rating

4.3/5

Number of Reviews

10

Rating Summary
9
0
0
0
1
9
0
0
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1
Red-stars EXCELLENT RATING ON
Number of Lexus RX300 Spark Plugs Replacement services completed
110+
services done by our mechanics
TOTAL NUMBER OF EXPERT Lexus MECHANICS
700+
experts on our platform

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