2001 Toyota Tundra Q&A

2001 Toyota Tundra Question: O2 sensor replacement

I have been told I need to replace both oxygen sensors. I found this out after the check engine light came on and took the truck into the local dealer. The dealer has indicated the rplacement will be $545 dollar but if they have seized up the cost will be an additional $1700 if both are seized and half this cost if only one has seized. They did say that neither may have be seized. Does this sound right? -
Answer 1
Yeah it does the dealer will charge you an arm just about for anything your better off going to your local muffler guys they can give you a better price. -
Answer 2
What is the code or codes, then I can tell you. I have yet to see a Toyota Oxygen Sensor seize in over 22 years of working on them, ever. I don't know why you need sensors, they usually go out 1 at a time. -
Comment 1
I have a 2005 4.7 tundra 4wd. I have a code po172. i replaced both o2 sensors on the driver side. the code came up again 1 month later. It usually come on while im idling. Without spending hundreds of dollars replacing parts what is the best way to diagnose the problem. Thanks -
Answer 3
i have a 2002 tundra extended cab limited 2wd and the same thing happened to me it was going to cost me 1700 both were seized @ 50,000 i had to replace both manifolds and sensors , i got toyota to pay for one of the manifolds. -
Answer 4
The check engine light kept coming on all the time. We had a engine diagnostic done and all it was was a gas cap replacement. -
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