Tips for removing O2's on a 1994
Thread Starter
Intermediate
Joined: Jun 2006
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Tips for removing O2's on a 1994
Folks,
After trying a variety of wrenches, O2 sockets....etc. I'm finding
access to the pre-cat O2's on my '94 pretty tight.
Any tricks? I'm debating dropping the cats and fighting with them
on a work bench. My Cat heat shields seem pretty tight.
Thanks in advance for any advice, I appreciate it.
After trying a variety of wrenches, O2 sockets....etc. I'm finding
access to the pre-cat O2's on my '94 pretty tight.
Any tricks? I'm debating dropping the cats and fighting with them
on a work bench. My Cat heat shields seem pretty tight.
Thanks in advance for any advice, I appreciate it.
Le Mans Master
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From: Life is just one big track event. Everything before and after is prep and warm-up and cool-down laps
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St. Jude Donor '12
I did mine on my 92 after I removed the cat and pipe from the car.
Now that its been done once I can remove them while they are in the car.
Now that its been done once I can remove them while they are in the car.
Thread Starter
Intermediate
Joined: Jun 2006
Posts: 33
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That's what I was starting to realize. I was just thinking if I could
get a wrench on them somehow, I knew I was going to have to heat
them and I sure don't have much room to work with.
I grabbed a offset O2 wrench last week, but it doesn't have much of
a head to grab on the drivers side.
Thanks for the reply and advice.
get a wrench on them somehow, I knew I was going to have to heat
them and I sure don't have much room to work with.
I grabbed a offset O2 wrench last week, but it doesn't have much of
a head to grab on the drivers side.
Thanks for the reply and advice.
Le Mans Master
Joined: Feb 2000
Posts: 9,715
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From: Kempner Texas
When I swapped engines on my 96 a couple of months ago I noticed the same thing. I've got four 02s and two are them are absolutely inaccessible without dropping the exhaust.
You should see how cut up my hands got just trying to plug one of them in!!
Jake
You should see how cut up my hands got just trying to plug one of them in!!
Jake
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From: Fort Knox, KY
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Sears and NAPA sell a "crow's foot" O2 sensor wrench similar to the one in the photo. That's what I used to coax mine out of my '92 without removing the cats or heat shields.
Make sure your exhaust is warm to "loosen" the threads on the old sensors. Use anti-sieze compound if it's not supplied with the new sensors.
I would also be prepared to replace the sensor connector pigtails as they get brittle from engine heat and often break when you go to disconnect the sensors. NAPA has them.
Make sure your exhaust is warm to "loosen" the threads on the old sensors. Use anti-sieze compound if it's not supplied with the new sensors.
I would also be prepared to replace the sensor connector pigtails as they get brittle from engine heat and often break when you go to disconnect the sensors. NAPA has them.
Last edited by onedef92; Aug 30, 2007 at 01:06 PM.
Burning Brakes
Joined: Nov 2006
Posts: 818
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From: San Antonio Texas
I couldn't find oxygen sensor that's displayed above. I was able to find this one though.
$23 bucks though
http://www.sears.com/shc/s/p_10153_1...=oxygen+sensor
$23 bucks though
http://www.sears.com/shc/s/p_10153_1...=oxygen+sensor
Team Owner
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From: Fort Knox, KY
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I couldn't find oxygen sensor that's displayed above. I was able to find this one though.
$23 bucks though
http://www.sears.com/shc/s/p_10153_1...=oxygen+sensor
$23 bucks though
http://www.sears.com/shc/s/p_10153_1...=oxygen+sensor
That's about the cost of one Bosch 02 sensor for an LT1 engine at AutoZone.
If you don't want to commit to purchase, ask AZ or NAPA if you can rent the sensor wrench from them. Some stores loan out tools.
Le Mans Master
Joined: Feb 2006
Posts: 8,753
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From: Louisiana
My O2 sensors on my 95 were accessible while on the the car. Not easy, but got changed. Use some spray lub (WD-40, PB blaster) and spray the threaded area. Let it sit for a bit and spray it again and wait. I used a normal tool (can't remember), but nothing special. If that doesn't work, start the engine and let it idle for a minute and try again.
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Thread Starter
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There out !
Thanks for the replies. I ended up using an OTC Heated O2 socket.
Driver side came out from underneath.
Passenger side I had to get the socket on from underneath, then use a
24 inch extension on a breaker bar from the top to get to it.
Both popped with considerable pressure, but I didn't need to heat anything........or drop the cats!!!
Thanks for the replies. I ended up using an OTC Heated O2 socket.
Driver side came out from underneath.
Passenger side I had to get the socket on from underneath, then use a
24 inch extension on a breaker bar from the top to get to it.
Both popped with considerable pressure, but I didn't need to heat anything........or drop the cats!!!
