This may sound bad but it really is this easy.
Find O2 sensor (there are two or three and some have four) that you need to change
Unplug from wiring
Remove using wrench or special socket if you have the special socket
Screw in new gently!
Plug in.
under the driver side and after the pre catalytic converter ( the second sensor). regards.
The O2 sensors are on either side of the catalytic convert in the exhaust system.
Bank one is the driver side on a 3.7L. There will be an upstream ( sensor 1 ) and a downstream ( sensor 2 ).
location of relay for heated o2 sensor 1999 jeep Cherokee sport
In the exhaust pipe.
Quick answer: Gas cap or 02 sensor Or, it could be anything. When mine came on (04 Liberty Sport) I bought a scan tool at Sears. Turns out it was an O2 sensor.
To change an O2 sensor you need to disconnect the wiring harness from the sensor. Use an O2 sensor socket and ratchet set to remove the old sensor and replace with the new one.
to change o2 sensor ,you need to buy a o2 sensor socket from a parts store then disconnect neg terminal on battery ,after that disconnect wire connecter on o2 sensor and remome o2 sensor
You do not, you repair the problem.
O2 sensor or wiring
Its located in the right exhaust downpipe just before the mini catalytic converter. It referered to as 2/1. John
It's in the exhaust. It screws into the catalytic converter.