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O2 and A/F sensors.

1352 Views 4 Replies 3 Participants Last post by  BBtruck
Need help.. As some of you might know, I'm about to install the DT headers and Berk mid-pipes. Since I have about 140,xxx miles on the truck I would like to replace the O2 and A/F sensors. Can anyone give me part#'s and where could I get 'em at a decent price?

Used the search engine, but didn't find any direct info...

I don't feel good installing a whole new exhaust system with sensors that might be on borrowed time.

L
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The factory ones are bosch so I would say stick with the bosch brand. Rockauto always has good prices. Maybe oxygensensors.com as well. I had to replace one of mine and I picked it up at autozone, bosch brand which also came with a warrenty.
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Thanks..

On a '05 4x2 with the cats on the manifolds only. Are the O2's before the cats and the A/F's are on the mid-pipes or do I have it backwards?

Please help me out... Hate to have to go to the auto parts store with no info and relying on the clerk to give me the right parts..

L
The A/F ratio sensor is in front of the catalytic converter, and the O2 sensor is behind the converter. They are not inexpensive, so why replace them if yours are currently working ?
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Thanks..and I'm aware of the cost.. BUT..
140,xxx miles and some peace of mind.. plus those SOB's are welded to the pipes. Been soaking 'em with PB Blaster for over a month. I manage to take off the manifolds and the mid-pipes on both sides and put in the new parts in 4.5 hrs. All the nuts came off easy enough. But I spent 6 hrs, on those mofo sensors, stripping one. Pissed off I put the OEMs back on and decided to pay the price for new ones.

There, now everyone knows I got punked..:crying:

L
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