02 sensor replacement
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Cargo Master
Joined: Dec 2006
Posts: 3,489
Likes: 45
From: Central NY
02 sensor replacement
My mechanic (my best friend's dad) says that sometimes the heated O2 sensors should be replaced before they go bad and start spitting codes.
anyone bother doing this?
if so, which ones, or did you replace all?
MC brand?
anyone bother doing this?
if so, which ones, or did you replace all?
MC brand?
Post Fiend
Joined: May 2006
Posts: 10,007
Likes: 4
From: Central Florida
O2's should be replaced at 60K miles, they can last longer. However your performance and mileage will suffer once they begin to fail. I use motorcraft now, they plug into the stock harness. I have tried some aftermarket that required splicing.
Post Fiend
Joined: May 2006
Posts: 10,007
Likes: 4
From: Central Florida
I forgot F150 have four, the post cat sensors monitor only the emissions aspect. The pre-cats talk to the ecm for engine management. You can replace the fronts and wait for the rears to fail, but it would be easier to replace them at once so you know how old they all are.
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Cargo Master
Joined: Dec 2006
Posts: 3,489
Likes: 45
From: Central NY
Originally Posted by ReAX
I forgot F150 have four, the post cat sensors monitor only the emissions aspect. The pre-cats talk to the ecm for engine management. You can replace the fronts and wait for the rears to fail, but it would be easier to replace them at once so you know how old they all are.
any sponsors have good prices?
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Cargo Master
Joined: Dec 2006
Posts: 3,489
Likes: 45
From: Central NY
Thanks ReAX....let's hope i don't have a problem getting them out...my 92 Galant is seized and i can't break her loose, even with a breaker bar and penetrant....rather just leave that one in there!
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Postmaster
Joined: Nov 2006
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From: SE Wyoming
I've found if you run the vehicle so the exhaust gets warm they can be easier to remove, also helps to spray them down with Pb blaster a few days before you plan on removing them. I try to replace mine every 60-80K, rears are $5-$10 more than fronts IIRC.
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Cargo Master
Joined: Dec 2006
Posts: 3,489
Likes: 45
From: Central NY
Originally Posted by galaxie641
I've found if you run the vehicle so the exhaust gets warm they can be easier to remove, also helps to spray them down with Pb blaster a few days before you plan on removing them. I try to replace mine every 60-80K, rears are $5-$10 more than fronts IIRC.
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