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O2 sensors going bad
Hello everyone, The Expedition got to where it would only crank and take like 8 seconds to start and would not idle. So I removed the throttle body and the IAC and cleaned them, they weren’t that dirty. Then when reinstalling them I noticed the PCV rubber elbow on the rear of the intake had a...- CCTD shop
- Post #3
- Forum: Engine & Performance
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C
O2 sensors going bad
hi everyone, I am having a problem with my 2000 Ford Expedition 5.4L a few months ago I tuned it up, replaced the coils and o2 sensors also at the same time, it ran great for two months then the o2 sensor right side upstream went out I figured ( damm eBay) so I replaced it again, then yesterday...- CCTD shop
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- Replies: 2
- Forum: Engine & Performance
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99 5.4L o2sensors
Hey everyone, I'm new here but have been the field for a lot of years, 1999 expedition 5.4L, three months ago I replaced all the coils and tuned up, then I replaced all four of the o2 sensors a month, now I have codes po151 and p1151. Has anyone had problems with wiring issues on o2 sensors ?- CCTD shop
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- Replies: 4
- Forum: 1st Gen - 1997 - 2002
