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[L98] How Hard Is It To Replace The O2 Sensor?
Thread Starter
Le Mans Master
Joined: May 2003
Posts: 8,175
Likes: 237
From: Philadelphia Burbs
Cruise-In V Veteran
St. Jude Donor '06
[L98] How Hard Is It To Replace The O2 Sensor?
Folks,
How hard is it to replace the O2 sensor on an L98? Do I really need to "elevate" like the service manual says?
Getting in deeper and deeper...
How hard is it to replace the O2 sensor on an L98? Do I really need to "elevate" like the service manual says?
Getting in deeper and deeper...
Race Director
Joined: Sep 2000
Posts: 17,298
Likes: 33
From: The Top of Utah
I can reach mine from the top or the bottom. You may have to go underneath to disconnect the pigtail from it's connector. After that, put a 7/8ths" box or open ended wrench on it and turn counterclockwise. To reinstall, reverse the process. If it is not a NEW sensor, you're installing, put a little anti seize on the threads, only. It's easier than changing to oil.
RACE ON!!!
RACE ON!!!
Racer
Joined: Feb 2002
Posts: 293
Likes: 0
From: Benoni Gauteng
Originally Posted by CFI-EFI
I can reach mine from the top or the bottom. You may have to go underneath to disconnect the pigtail from it's connector. After that, put a 7/8ths" box or open ended wrench on it and turn counterclockwise. To reinstall, reverse the process. If it is not a NEW sensor, you're installing, put a little anti seize on the threads, only. It's easier than changing to oil.
RACE ON!!!
RACE ON!!!
Instructor
Joined: Jun 2004
Posts: 234
Likes: 0
From: 1987- L98, auto OH
Just did mine. Piece of cake. I have a lift, so I had it easy. As noted, disconnect electrical lead, unscrew and replace. I did notice a slight increase in throttle response and a slight improvement in the idle.
Brad
Brad
Instructor
Joined: Nov 2003
Posts: 126
Likes: 2
From: Belmont MI
when I did mine on an '85, it was suggested to me to 'warm' the car up a little to help with the removal of the old one. It was a long time ago, but I think I ran the car for about 1 minute. You don't want the exhaust pipe hot, that's for sure.
