Replace or sell car? Opinions wanted

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03-08-14, 07:12 PM

#31

RX330inFL

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Originally Posted by jwminzen

The Lexus tech that posted in the second link said that 95% of the time, the cat is faulty, not the sensor. I wish it was as easy as just replacing the sensor.

He also mentioned about hooking up the computer and performing an extended test both before and after the CAT. Like I stated before, I am just not convinced. CATs should not fail at 100K miles these days without a reason. O2 sensor, yes. CAT, no.

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03-08-14, 07:50 PM

#32

jwminzen

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Originally Posted by RX330inFL

I'm hoping I can get my mechanic to run a more thorough diagnostic. Some things fail early/prematurely though, so I'm def not counting out needing a new cat.

I don't want to take it back to lexus again because I believe what they diagnosed as needing a new transfer case is actually a wheel bearing. That's a big miss.

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03-08-14, 07:55 PM

#33

RX330inFL

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Originally Posted by jwminzen

I don't want to take it back to lexus again because I believe what they diagnosed as needing a new transfer case is actually a wheel bearing. That's a big miss.

Would agree with you here. As I mentioned previous, 2nd Generation AWD RX have a tendency for bad wheel bearings requiring new hub assemblies.

I would make sure that front transfer case, transmission, and rear differential all get attention sooner rather than later. That way you will know there is fresh gear oil and fluids in there for the long run.

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