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K. Wiggins
K. Wiggins, ASE Certified Technician
Category: Toyota
Satisfied Customers: 2512
Experience:  AA in automotive Technology, 15+ years in the trade
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I have a 2003 Toyota ghlander 4 cyl. I am running into

Customer Question

I have a 2003 Toyota Highlander 4 cyl. I am running into occasional engine misfire at a stop while car is in drive. No dash light coming on etc. This is not a consistent problem. Car has power and there is no engine shaking or hesitation.
Thanks
Submitted: 1 year ago.
Category: Toyota
Expert:  K. Wiggins replied 1 year ago.

Hello, from what you descripe it is most likely due to a fuel injector that is partially clogged or poor fuel quality (high water or ethanol content) I recommend treating the fuel and cleaning the system with the use of Chevron Techron fuel additive.