My friend's family has a 2005 Dodge Grand Caravan with the 3.3L engine. It's throwing a P0032 code (upstream oxygen sensor), and clearing it results in it coming back a couple trips later. Would one of the sensors listed on RockAuto work without issue, and if so, which one? Or should I suggest them to get an OEM sensor? Anybody know how hard it is to replace the upstream O2 sensor? I've read somewhere that taking off the wiper cowl allows easy access for replacement.
Also, regarding the transmission, it's not been serviced in its 120k life so far and has brown fluid and it smells burnt. My friend and I tried to drop the pan to do a filter & fluid change, but the pan's gasket held the pan on even after hits with a rubber mallet and we were unable to wedge anything to try to loosen the pan, so we bolted it back up and gave up. I recently acquired a "multi-use transfer pump" from Harbor Freight for a few bucks. Would a siphon & refill with Supertech ATF+4 be beneficial, or should we try dropping the pan to replace the filter again? Is the filter anything more than a large mesh screen?
Also, regarding the transmission, it's not been serviced in its 120k life so far and has brown fluid and it smells burnt. My friend and I tried to drop the pan to do a filter & fluid change, but the pan's gasket held the pan on even after hits with a rubber mallet and we were unable to wedge anything to try to loosen the pan, so we bolted it back up and gave up. I recently acquired a "multi-use transfer pump" from Harbor Freight for a few bucks. Would a siphon & refill with Supertech ATF+4 be beneficial, or should we try dropping the pan to replace the filter again? Is the filter anything more than a large mesh screen?