Attention: TDR Forum Junkies The location of the O2 Sensor Module has been the heart of all of the problems with my truck. Back right before the G30 recall I started having a CEL and DTC's P2A00, P2A01, and U011A. Dealer would check it out, clear codes and send me on my way. The next time the codes came back I took the truck back in and dealer said need to do the G30 recall. After that all was great for a couple of months, then the codes came back. Took the truck back and dealer said O2 sensors were bad and replaced them, cleared codes, and sent me on my way. Month later codes are back. So I decided to do some research. Read up on the codes, the G30 recall, and I had an idea. I went out, found the sensor module, and just looked at it. What I found was a big hole in the module and knew right then and there what my problem was. You see I am a contractor here, I drive a lot of dirt roads and when my tires kick up rocks, they are thrown right at the module which breaks it allowing mud and water to get inside and short it out, which in turn throws codes. Took the truck in and explained this and ended up purchasing a new module. Dealer would have paid for it but trying to be an honest person, I felt as if it was kinda my fault because sometimes I drive fast and that in turn really kicks up big rocks. After that I have slowed way down on dirt roads and haven't broken another module. (but I am now going on my 3rd module) Why you ask?? Because of WATER!! Just like the rocks, water is thrown off my tires and hits the module. Yes I have splash guards on all corners. The water gets inside the connector, corrodes the pins and sets codes because the pins don't make a good connection with green corrosion on them. When there is sand and SALT on the road in winter the corrosion gets very bad. So now whenever I get the codes I go home crawl under the truck unplug the connector, blow all of the water out of the connector and module with compressed air, clean corrosion off all terminals and pins, plug it back in and go back to work. Within about 50 miles of driving the CEL goes out and every thing is fine until the next heavy rain or snow. Ok so I look at this as just regular maintenance (no problem) until, water finds its way INTO the module and shorts it out hence (going on my 3rd module)!! It's to the point where at nearly $100. 00 each I'm tired of buying them. I think Chrysler has a problem here! Not with the module, but where they chose to mount it. I shouldn't have to watch where and how I drive just to protect something that is mounted in a bad place. I can't avoid water puddles, or drive only when it's dry outside and shouldn't have to. I'm gonna go and demand that Chrysler GIVE me another module and see what happens. Also I'm trying to figure out if it would hurt to enclose this module in something and put some petroleum jelly on the connector to try and keep the elements out.
More later, gotta go.
More later, gotta go.
