Cadillac Seville / Cadillac Eldorado Forum Discussion, socket size o2 in Past Cadillac Vehicle Discussion; Need socket size o2 replacement for 99 sts bank 2 sensor 1 and whats the best one to buy thanks ...
Automobile(s): 1988 Allante' (sold), 1984 Eldorado, 84 Sedan DeVille
Re: socket size o2
Buy an Oxy sensor socket, its got a slice out of one side to be able to encircle the sensor wiring the wiring attached, then use a longer breaker bar. Slap the breaker bar, don't just pull on it. New sensors have anti seize on them so they wont bind on the threads.