XR4Ti / Sierra / Sierra Cosworth Discussions - Questions, problem resolution, general talk, technical tips and modifications.
6 posts • Page 1 of 1
Gonna change the O2 sensor since it's the OEM and was just wondering if there is a good/more helpful way to change it? It being in the car for so long thought maybe warm up the exhaust some first, spray it down with WD40 or just good ole elbow grease.
Probably will want PB Blaster or something stronger than WD-40 but other than that, sounds like you've got it. Try it without heat first, hopefully you won't need it.
'85 Mineral Blue & '87 White Barn Find parked in '92
Hopefully you can re-install a new one. All the O2 sensors I've tried to remove I've destroyed the threads, like they were welded in from the heat. So for my truck I decided to go with the "cut out a big chunk of pipe" method. Girl at pull a part only charged me for the O2 and not the flange or pipe. Sweet. Now's the time to put in a new bung and larger downpipe since you got it all apart anyway.
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