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If a 1997 Jeep Wrangler is getting horrible gas mileage and you think it may be the oxygen sensor where are they located?
Wiki User
∙ 8y ago
oxygen sensor is threaded into a well in the exhaust pipe down next to the transmission. 7/8 wrench. spray with penetrating oil first wait 15 min soak before unscrewing. disconnect wire first open end wrench or special O2 sensor socket to not crush wire while unscrewing. replace with Bosch OEM, nothing else will restore your efficiency. put anti-sieze compound on threads. do not blow this off, or next sensor job will be EXPENSIVE. cheap O2 sensors are worthless.
Dont forget that you have two O2 sensors....upstream AND downstream.
Jim
Wiki User
∙ 8y ago
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