o2 sensors
Safety Car
Joined: Oct 2008
Posts: 4,022
Likes: 30
From: Los Angeles CA
if you can see it and put a wrench on it and turn the wrench, then go for it without taking the exhaust off, which sounds ludicrous.
Le Mans Master
Joined: Feb 2000
Posts: 9,715
Likes: 27
From: Kempner Texas
When I installed the 388 in my 96 LT1, naturally, I had to drop the exhaust, but here's the catch. After bolting the exhaust beack to the new engine I had forgotten to plug in the REAR 02 on the passenger side.
I had a awful time just plugging it in; I mean it took me a couple JUST to plug it back in and I ended up with so many cuts on my hands from reaching up trying to plug it in it was unbelieveable.
I finally got it, but since I had such a hard time just plugging in the REAR, I can imagine it would be about impossible to remove and re-install the rear ones.
I believe the the fronts are do-able, but not the rears; the rears are deep within the recesses of the floor pan.
I just dropped the entire exhaust on my son's 96 last night and it's about 20bolts to remove it, including the CATs.
Just my experience.
Jake
West Point Rocks!
I had a awful time just plugging it in; I mean it took me a couple JUST to plug it back in and I ended up with so many cuts on my hands from reaching up trying to plug it in it was unbelieveable.
I finally got it, but since I had such a hard time just plugging in the REAR, I can imagine it would be about impossible to remove and re-install the rear ones.
I believe the the fronts are do-able, but not the rears; the rears are deep within the recesses of the floor pan.
I just dropped the entire exhaust on my son's 96 last night and it's about 20bolts to remove it, including the CATs.
Just my experience.
Jake
West Point Rocks!
Last edited by JAKE; Jun 14, 2009 at 01:18 PM.
Pro
Joined: Jun 2008
Posts: 610
Likes: 1
Considering that the sensors are hard to get at and will not be easy to turn out, you may have to drop the exhaust to do it. I did mine when I had the exhaust off and it took some brute force to break them loose.
The main section of the exhaust is easy to remove, but that will only get you one of the sensors. The other three are in the catalytic converters.
Dropping the cats is another story. I found that a couple of the bracket bolts (which are also bellhousing bolts) are just about impossible to get at without lowering the transmission some. You know what that means - dropping the c beam. The manifold studs may also be hard to get off due to age. If you break a stud off, that's a whole other story.
The main section of the exhaust is easy to remove, but that will only get you one of the sensors. The other three are in the catalytic converters.
Dropping the cats is another story. I found that a couple of the bracket bolts (which are also bellhousing bolts) are just about impossible to get at without lowering the transmission some. You know what that means - dropping the c beam. The manifold studs may also be hard to get off due to age. If you break a stud off, that's a whole other story.
Thread Starter
Instructor
Joined: Nov 2006
Posts: 223
Likes: 0
From: barnegat new jersey
Considering that the sensors are hard to get at and will not be easy to turn out, you may have to drop the exhaust to do it. I did mine when I had the exhaust off and it took some brute force to break them loose.
The main section of the exhaust is easy to remove, but that will only get you one of the sensors. The other three are in the catalytic converters.
Dropping the cats is another story. I found that a couple of the bracket bolts (which are also bellhousing bolts) are just about impossible to get at without lowering the transmission some. You know what that means - dropping the c beam. The manifold studs may also be hard to get off due to age. If you break a stud off, that's a whole other story.
The main section of the exhaust is easy to remove, but that will only get you one of the sensors. The other three are in the catalytic converters.
Dropping the cats is another story. I found that a couple of the bracket bolts (which are also bellhousing bolts) are just about impossible to get at without lowering the transmission some. You know what that means - dropping the c beam. The manifold studs may also be hard to get off due to age. If you break a stud off, that's a whole other story.
Le Mans Master
Joined: Feb 2003
Posts: 9,087
Likes: 0
From: Chicago IL
If the car has ever seen any daily driving duties, just take it to an exhaust shop. A lift and a torch are mandatory since these things seem to weld themselves into the exhaust pipe and the location under the car exposing it to the elements.
After trying myself to get the left side out, the socket rounded it. The shop had to heat it up several times and kept turning it with a vise grip until it came loose. The mechanic was not happy...
After trying myself to get the left side out, the socket rounded it. The shop had to heat it up several times and kept turning it with a vise grip until it came loose. The mechanic was not happy...
Melting Slicks
Joined: Oct 2004
Posts: 2,510
Likes: 4
From: Austin Texas
