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  #1  
Old 02-28-2011, 07:51 PM
clarkerussell clarkerussell is offline
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Proactively Replacing 02 sensors... Is it a waste of money?

Hello all,

My 1996 has 115K miles and I don't think the O2 sensors have ever been changed. I have no indicators that they are defective, I was just thinking that they need to be replaced at about 100K miles. That being said, should they really be replaced proactively? Thanks in advance.

Clarke
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  #2  
Old 02-28-2011, 08:14 PM
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msvx95 msvx95 is offline
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Re: Proactively Replacing 02 sensors... Is it a waste of money?

You are doing the right thing..your gas mileage should be a bit better too.
I don't normally do mine unless it throws a code. If you haven't done so, put some antiseize on the threads.
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  #3  
Old 02-28-2011, 09:01 PM
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Re: Proactively Replacing 02 sensors... Is it a waste of money?

i need to get new ones on mine.

procrastination.
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  #4  
Old 03-01-2011, 04:48 AM
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Sean486 Sean486 is offline
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Re: Proactively Replacing 02 sensors... Is it a waste of money?

Put new ones on mine proactively. Figured it could only help.
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  #5  
Old 03-01-2011, 05:42 AM
Blacky Blacky is offline
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Re: Proactively Replacing 02 sensors... Is it a waste of money?

I wait for a code. If they aren't working properly the CEL will let you know.
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  #6  
Old 03-01-2011, 06:24 AM
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Manarius Manarius is offline
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Re: Proactively Replacing 02 sensors... Is it a waste of money?

If you're seeing no symptoms, I really see no reason to replace them. Now, if you were having bad mpg or other engine issues, then I could justify replacement. But, "just because it's old" isn't really a good reason to replace things on a car unless it's prompted by something else, or it's something that wears out with age (belts, gaskets, etc.)
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  #7  
Old 03-01-2011, 06:15 PM
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Re: Proactively Replacing 02 sensors... Is it a waste of money?

If it aint broke, dont fix it. If it broke while you were fixing it, it needed fixin' anyway!
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  #8  
Old 03-01-2011, 08:23 PM
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Re: Proactively Replacing 02 sensors... Is it a waste of money?

recover horsepower and drivability by switching to denso 02s.. $60 each at rockauto
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  #9  
Old 03-02-2011, 04:48 AM
dcarrb dcarrb is offline
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Re: Proactively Replacing 02 sensors... Is it a waste of money?

I would proactively replace O2 sensors (or pretty much anything else) only if a failing O2 sensor could make me have to walk home.

dcb
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  #10  
Old 03-02-2011, 07:00 AM
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Re: Proactively Replacing 02 sensors... Is it a waste of money?

I just ordered a couple of those NGK's, John pointed out in another thread. Only about thirty dollars each.
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  #11  
Old 03-02-2011, 07:11 AM
clarkerussell clarkerussell is offline
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Re: Proactively Replacing 02 sensors... Is it a waste of money?

Are there 2 or 4 O2 sensors on the SVX?
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  #12  
Old 03-02-2011, 10:24 AM
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Re: Proactively Replacing 02 sensors... Is it a waste of money?

3 wire 4 pin sensor
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  #13  
Old 03-02-2011, 10:40 AM
1986nate 1986nate is offline
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Re: Proactively Replacing 02 sensors... Is it a waste of money?

Quote:
Originally Posted by clarkerussell View Post
Are there 2 or 4 O2 sensors on the SVX?
2 on OBDI(92-95) SVXi and 3 on OBDII(96,97) SVXi
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