trans
New Member
- Joined
- March 18, 2011
- Messages
- 1
- Reaction score
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- City, State
- colorado springs, co
- Year, Model & Trim Level
- 97 mountaineer 5.0
Hi,new to forum, I'm working on 97 mountaineer with 4R70W . The codes are P0720 and P0721 OSS SENSOR . I replace the oss sensor and ohm check the wiring to pcm.I check the the drive shell in the trans, and rebuild the transmisssion .Now the same codes are back. As any one run a cross this problem, maybe a bad pcm. Check out on scanner oss is erratic and works some times,and some time no reading at all driving speeds. THANKS
