R&R 02 sensor ??
Thread Starter
Pro
Joined: May 2006
Posts: 536
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From: Humble Texas
R&R 02 sensor ??
im getting ready to install all my 02 sensors,starting with pass front,
has anyone done this that can give me some direction..i know its easy to remove and replace , but am i going to have to drop the exhaust ?
has anyone done this that can give me some direction..i know its easy to remove and replace , but am i going to have to drop the exhaust ?
Melting Slicks
Joined: Jul 2008
Posts: 2,269
Likes: 142
From: Ottawa Ontario
No need to drop the exhaust. Do it when the exhaust is cool if you can, though. If you can't loosen the O2 sensor when the exhaust is cool, take the car for a hard run to heat up the exhaust & try loosening it while the exhaust is hot - more care is required then, obviously...
1. Raise hood, disconnect battery.
2. Jack up passenger side of car (support with jack stands of course)
3. Note how the O2 sensor wire & connector is routed and disconnect connector on O2 sensor from underneath.
4. From above, remove O2 sensor using an O2 sensor crows foot wrench http://www.sears.com/shc/s/p_10153_1...+sensor+socket on a 3/8 socket with a couple of long extensions. There is not enough room to use a regular open end wrench.
5. Clean O2 exhaust opening threads with a Scotch-brite pad.
6. Put special O2 sensor anti-seize on O2 sensor threads (if the sensor didn't come with it on out of the box - like my NTK brand did).
7. From underneath, carefully insert new sensor into opening, taking care that the tip doesn't get damaged. Thread sensor in hand tight, being careful not to damage the wire.
8. Use O2 wrench to tighten it another 1/2 turn to seal the washer.
9. Route sensor wire as in step 3. and reconnect sensor connection. Make sure the sensor and connector don't touch the exhaust of any sharp edges that could chafe the wire.
10. Lower car, reconnect battery, etc.
Good luck.
Last edited by RUU; Apr 22, 2010 at 07:30 PM. Reason: formatting
Thread Starter
Pro
Joined: May 2006
Posts: 536
Likes: 0
From: Humble Texas
Just did it two weeks ago.
No need to drop the exhaust. Do it when the exhaust is cool if you can, though. If you can't loosen the O2 sensor when the exhaust is cool, take the car for a hard run to heat up the exhaust & try loosening it while the exhaust is hot - more care is required then, obviously...
1. Raise hood, disconnect battery.
2. Jack up passenger side of car (support with jack stands of course)
3. Note how the O2 sensor wire & connector is routed and disconnect connector on O2 sensor from underneath.
4. From above, remove O2 sensor using an O2 sensor crows foot wrench http://www.sears.com/shc/s/p_10153_1...+sensor+socket on a 3/8 socket with a couple of long extensions. There is not enough room to use a regular open end wrench.
5. Clean O2 exhaust opening threads with a Scotch-brite pad.
6. Put special O2 sensor anti-seize on O2 sensor threads (if the sensor didn't come with it on out of the box - like my NTK brand did).
7. From underneath, carefully insert new sensor into opening, taking care that the tip doesn't get damaged. Thread sensor in hand tight, being careful not to damage the wire.
8. Use O2 wrench to tighten it another 1/2 turn to seal the washer.
9. Route sensor wire as in step 3. and reconnect sensor connection. Make sure the sensor and connector don't touch the exhaust of any sharp edges that could chafe the wire.
10. Lower car, reconnect battery, etc.
Good luck.
No need to drop the exhaust. Do it when the exhaust is cool if you can, though. If you can't loosen the O2 sensor when the exhaust is cool, take the car for a hard run to heat up the exhaust & try loosening it while the exhaust is hot - more care is required then, obviously...
1. Raise hood, disconnect battery.
2. Jack up passenger side of car (support with jack stands of course)
3. Note how the O2 sensor wire & connector is routed and disconnect connector on O2 sensor from underneath.
4. From above, remove O2 sensor using an O2 sensor crows foot wrench http://www.sears.com/shc/s/p_10153_1...+sensor+socket on a 3/8 socket with a couple of long extensions. There is not enough room to use a regular open end wrench.
5. Clean O2 exhaust opening threads with a Scotch-brite pad.
6. Put special O2 sensor anti-seize on O2 sensor threads (if the sensor didn't come with it on out of the box - like my NTK brand did).
7. From underneath, carefully insert new sensor into opening, taking care that the tip doesn't get damaged. Thread sensor in hand tight, being careful not to damage the wire.
8. Use O2 wrench to tighten it another 1/2 turn to seal the washer.
9. Route sensor wire as in step 3. and reconnect sensor connection. Make sure the sensor and connector don't touch the exhaust of any sharp edges that could chafe the wire.
10. Lower car, reconnect battery, etc.
Good luck.
Racer
Joined: Oct 2008
Posts: 299
Likes: 1
From: Ottawa Ontario
Just a heads up that I did the driver's side front one last summer on my 95 without any special tools. I just used a wrench and was able to get up in there without any difficulty. The hardest part was undoing the pigtail!
Good luck.
Good luck.
