Loud banging while going down street that went away.
10

Asked by GuruSFWMK Jun 17, 2019 at 04:22 PM about the 2007 Toyota Avalon Touring

Question type: Maintenance & Repair

Had loud thumping that sounded like
engine back firing or something in the
wheel. It went away but could it be a
rear bearing? I am hoping not a
engine rod or anything on those lines.

2 Answers
10

GuruSFWMK answered 4 years ago

I have a pending P2197 code (stuck lean bank 2 sensor 1). In the last 3 years I have replaced all four AF/O2 sensors with 3 Denso and 1 Toyota sensor. I do hear a leak of some type. Could it be caused by a lose Bank 2 Sensor 1 AF sensor? Also what else should I look for?

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