How can I clean my spark plugs without replacing them?

2005 TOYOTA SIENNA
130,000 MILES • 3.3L • V6 • 4WD • AUTOMATIC
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IMAGING
  • MEMBER
  • 151 POSTS
To get to them is very difficult and taking it to a shop to replace them is going to be very expensive. So, is there a liquid I can add to the gas tank or oil reservoir to clean them without removing them?
Dec 21, 2021 at 8:17 AM
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JACOBANDNICKOLAS
  • ✓Experienced Mechanic
  • 110,248 POSTS
Hi,

There are different products that are designed to clean fuel injectors, but I never saw one for the plugs. I've had to replace spark plugs after people used fuel injector cleaner. What is the vehicle doing that leads you to believe it needs spark plugs?

Let me know as much as you can so I can best direct you.

Take care,

Joe
Dec 21, 2021 at 11:03 AM
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